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authorOlof Johansson <olof@lixom.net>2012-05-12 19:57:34 -0700
committerOlof Johansson <olof@lixom.net>2012-05-12 19:57:34 -0700
commit7af07ad902cce88ebbd2ce0e681d0c541e8f95fa (patch)
tree40a5aedb583c35d16505d96ea8996c413a747fe6 /drivers/pinctrl
parent7afeca1a30360c7b5cee94fc7ff8f350d582282a (diff)
parent08d98fe0e81cd9424ef2451ed13afe91a9a26f9f (diff)
downloadop-kernel-dev-7af07ad902cce88ebbd2ce0e681d0c541e8f95fa.zip
op-kernel-dev-7af07ad902cce88ebbd2ce0e681d0c541e8f95fa.tar.gz
Merge tag 'ux500-gpio-pins-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/pinctrl
ux500 GPIO and pinctrl changes for kernel 3.5 * tag 'ux500-gpio-pins-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: ARM: ux500: switch MSP to using pinctrl for pins ARM: ux500: alter MSP registration to return a device pointer ARM: ux500: switch to using pinctrl for uart0 ARM: ux500: delete custom pin control system ARM: ux500: switch over to Nomadik pinctrl driver pinctrl: add sleep state definition pinctrl/nomadik: implement pin configuration pinctrl/nomadik: implement pin multiplexing pinctrl/nomadik: reuse GPIO debug function for pins pinctrl/nomadik: break out single GPIO debug function pinctrl/nomadik: basic Nomadik pinctrl interface pinctrl/nomadik: !CONFIG_OF build error gpio: move the Nomadik GPIO driver to pinctrl Context conflicts resolved in drivers/pinctrl/Kconfig and drivers/pinctrl/Makefile. Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/Kconfig10
-rw-r--r--drivers/pinctrl/Makefile2
-rw-r--r--drivers/pinctrl/pinctrl-nomadik-db8500.c857
-rw-r--r--drivers/pinctrl/pinctrl-nomadik.c1780
-rw-r--r--drivers/pinctrl/pinctrl-nomadik.h77
5 files changed, 2726 insertions, 0 deletions
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index a54a931..cc01c75 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -64,6 +64,16 @@ config PINCTRL_IMX28
select PINCONF
select PINCTRL_MXS
+config PINCTRL_NOMADIK
+ bool "Nomadik pin controller driver"
+ depends on ARCH_U8500
+ select PINMUX
+ select PINCONF
+
+config PINCTRL_DB8500
+ bool "DB8500 pin controller driver"
+ depends on PINCTRL_NOMADIK && ARCH_U8500
+
config PINCTRL_PXA168
bool "PXA168 pin controller driver"
depends on ARCH_MMP
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index c9b0be5..8e764ad 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -16,6 +16,8 @@ obj-$(CONFIG_PINCTRL_MMP2) += pinctrl-mmp2.o
obj-$(CONFIG_PINCTRL_MXS) += pinctrl-mxs.o
obj-$(CONFIG_PINCTRL_IMX23) += pinctrl-imx23.o
obj-$(CONFIG_PINCTRL_IMX28) += pinctrl-imx28.o
+obj-$(CONFIG_PINCTRL_NOMADIK) += pinctrl-nomadik.o
+obj-$(CONFIG_PINCTRL_DB8500) += pinctrl-nomadik-db8500.o
obj-$(CONFIG_PINCTRL_PXA168) += pinctrl-pxa168.o
obj-$(CONFIG_PINCTRL_PXA910) += pinctrl-pxa910.o
obj-$(CONFIG_PINCTRL_SIRF) += pinctrl-sirf.o
diff --git a/drivers/pinctrl/pinctrl-nomadik-db8500.c b/drivers/pinctrl/pinctrl-nomadik-db8500.c
new file mode 100644
index 0000000..8b20222
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-nomadik-db8500.c
@@ -0,0 +1,857 @@
+#include <linux/kernel.h>
+#include <linux/pinctrl/pinctrl.h>
+#include "pinctrl-nomadik.h"
+
+/* All the pins that can be used for GPIO and some other functions */
+#define _GPIO(offset) (offset)
+
+#define DB8500_PIN_AJ5 _GPIO(0)
+#define DB8500_PIN_AJ3 _GPIO(1)
+#define DB8500_PIN_AH4 _GPIO(2)
+#define DB8500_PIN_AH3 _GPIO(3)
+#define DB8500_PIN_AH6 _GPIO(4)
+#define DB8500_PIN_AG6 _GPIO(5)
+#define DB8500_PIN_AF6 _GPIO(6)
+#define DB8500_PIN_AG5 _GPIO(7)
+#define DB8500_PIN_AD5 _GPIO(8)
+#define DB8500_PIN_AE4 _GPIO(9)
+#define DB8500_PIN_AF5 _GPIO(10)
+#define DB8500_PIN_AG4 _GPIO(11)
+#define DB8500_PIN_AC4 _GPIO(12)
+#define DB8500_PIN_AF3 _GPIO(13)
+#define DB8500_PIN_AE3 _GPIO(14)
+#define DB8500_PIN_AC3 _GPIO(15)
+#define DB8500_PIN_AD3 _GPIO(16)
+#define DB8500_PIN_AD4 _GPIO(17)
+#define DB8500_PIN_AC2 _GPIO(18)
+#define DB8500_PIN_AC1 _GPIO(19)
+#define DB8500_PIN_AB4 _GPIO(20)
+#define DB8500_PIN_AB3 _GPIO(21)
+#define DB8500_PIN_AA3 _GPIO(22)
+#define DB8500_PIN_AA4 _GPIO(23)
+#define DB8500_PIN_AB2 _GPIO(24)
+#define DB8500_PIN_Y4 _GPIO(25)
+#define DB8500_PIN_Y2 _GPIO(26)
+#define DB8500_PIN_AA2 _GPIO(27)
+#define DB8500_PIN_AA1 _GPIO(28)
+#define DB8500_PIN_W2 _GPIO(29)
+#define DB8500_PIN_W3 _GPIO(30)
+#define DB8500_PIN_V3 _GPIO(31)
+#define DB8500_PIN_V2 _GPIO(32)
+#define DB8500_PIN_AF2 _GPIO(33)
+#define DB8500_PIN_AE1 _GPIO(34)
+#define DB8500_PIN_AE2 _GPIO(35)
+#define DB8500_PIN_AG2 _GPIO(36)
+/* Hole */
+#define DB8500_PIN_F3 _GPIO(64)
+#define DB8500_PIN_F1 _GPIO(65)
+#define DB8500_PIN_G3 _GPIO(66)
+#define DB8500_PIN_G2 _GPIO(67)
+#define DB8500_PIN_E1 _GPIO(68)
+#define DB8500_PIN_E2 _GPIO(69)
+#define DB8500_PIN_G5 _GPIO(70)
+#define DB8500_PIN_G4 _GPIO(71)
+#define DB8500_PIN_H4 _GPIO(72)
+#define DB8500_PIN_H3 _GPIO(73)
+#define DB8500_PIN_J3 _GPIO(74)
+#define DB8500_PIN_H2 _GPIO(75)
+#define DB8500_PIN_J2 _GPIO(76)
+#define DB8500_PIN_H1 _GPIO(77)
+#define DB8500_PIN_F4 _GPIO(78)
+#define DB8500_PIN_E3 _GPIO(79)
+#define DB8500_PIN_E4 _GPIO(80)
+#define DB8500_PIN_D2 _GPIO(81)
+#define DB8500_PIN_C1 _GPIO(82)
+#define DB8500_PIN_D3 _GPIO(83)
+#define DB8500_PIN_C2 _GPIO(84)
+#define DB8500_PIN_D5 _GPIO(85)
+#define DB8500_PIN_C6 _GPIO(86)
+#define DB8500_PIN_B3 _GPIO(87)
+#define DB8500_PIN_C4 _GPIO(88)
+#define DB8500_PIN_E6 _GPIO(89)
+#define DB8500_PIN_A3 _GPIO(90)
+#define DB8500_PIN_B6 _GPIO(91)
+#define DB8500_PIN_D6 _GPIO(92)
+#define DB8500_PIN_B7 _GPIO(93)
+#define DB8500_PIN_D7 _GPIO(94)
+#define DB8500_PIN_E8 _GPIO(95)
+#define DB8500_PIN_D8 _GPIO(96)
+#define DB8500_PIN_D9 _GPIO(97)
+/* Hole */
+#define DB8500_PIN_A5 _GPIO(128)
+#define DB8500_PIN_B4 _GPIO(129)
+#define DB8500_PIN_C8 _GPIO(130)
+#define DB8500_PIN_A12 _GPIO(131)
+#define DB8500_PIN_C10 _GPIO(132)
+#define DB8500_PIN_B10 _GPIO(133)
+#define DB8500_PIN_B9 _GPIO(134)
+#define DB8500_PIN_A9 _GPIO(135)
+#define DB8500_PIN_C7 _GPIO(136)
+#define DB8500_PIN_A7 _GPIO(137)
+#define DB8500_PIN_C5 _GPIO(138)
+#define DB8500_PIN_C9 _GPIO(139)
+#define DB8500_PIN_B11 _GPIO(140)
+#define DB8500_PIN_C12 _GPIO(141)
+#define DB8500_PIN_C11 _GPIO(142)
+#define DB8500_PIN_D12 _GPIO(143)
+#define DB8500_PIN_B13 _GPIO(144)
+#define DB8500_PIN_C13 _GPIO(145)
+#define DB8500_PIN_D13 _GPIO(146)
+#define DB8500_PIN_C15 _GPIO(147)
+#define DB8500_PIN_B16 _GPIO(148)
+#define DB8500_PIN_B14 _GPIO(149)
+#define DB8500_PIN_C14 _GPIO(150)
+#define DB8500_PIN_D17 _GPIO(151)
+#define DB8500_PIN_D16 _GPIO(152)
+#define DB8500_PIN_B17 _GPIO(153)
+#define DB8500_PIN_C16 _GPIO(154)
+#define DB8500_PIN_C19 _GPIO(155)
+#define DB8500_PIN_C17 _GPIO(156)
+#define DB8500_PIN_A18 _GPIO(157)
+#define DB8500_PIN_C18 _GPIO(158)
+#define DB8500_PIN_B19 _GPIO(159)
+#define DB8500_PIN_B20 _GPIO(160)
+#define DB8500_PIN_D21 _GPIO(161)
+#define DB8500_PIN_D20 _GPIO(162)
+#define DB8500_PIN_C20 _GPIO(163)
+#define DB8500_PIN_B21 _GPIO(164)
+#define DB8500_PIN_C21 _GPIO(165)
+#define DB8500_PIN_A22 _GPIO(166)
+#define DB8500_PIN_B24 _GPIO(167)
+#define DB8500_PIN_C22 _GPIO(168)
+#define DB8500_PIN_D22 _GPIO(169)
+#define DB8500_PIN_C23 _GPIO(170)
+#define DB8500_PIN_D23 _GPIO(171)
+/* Hole */
+#define DB8500_PIN_AJ27 _GPIO(192)
+#define DB8500_PIN_AH27 _GPIO(193)
+#define DB8500_PIN_AF27 _GPIO(194)
+#define DB8500_PIN_AG28 _GPIO(195)
+#define DB8500_PIN_AG26 _GPIO(196)
+#define DB8500_PIN_AH24 _GPIO(197)
+#define DB8500_PIN_AG25 _GPIO(198)
+#define DB8500_PIN_AH23 _GPIO(199)
+#define DB8500_PIN_AH26 _GPIO(200)
+#define DB8500_PIN_AF24 _GPIO(201)
+#define DB8500_PIN_AF25 _GPIO(202)
+#define DB8500_PIN_AE23 _GPIO(203)
+#define DB8500_PIN_AF23 _GPIO(204)
+#define DB8500_PIN_AG23 _GPIO(205)
+#define DB8500_PIN_AG24 _GPIO(206)
+#define DB8500_PIN_AJ23 _GPIO(207)
+#define DB8500_PIN_AH16 _GPIO(208)
+#define DB8500_PIN_AG15 _GPIO(209)
+#define DB8500_PIN_AJ15 _GPIO(210)
+#define DB8500_PIN_AG14 _GPIO(211)
+#define DB8500_PIN_AF13 _GPIO(212)
+#define DB8500_PIN_AG13 _GPIO(213)
+#define DB8500_PIN_AH15 _GPIO(214)
+#define DB8500_PIN_AH13 _GPIO(215)
+#define DB8500_PIN_AG12 _GPIO(216)
+#define DB8500_PIN_AH12 _GPIO(217)
+#define DB8500_PIN_AH11 _GPIO(218)
+#define DB8500_PIN_AG10 _GPIO(219)
+#define DB8500_PIN_AH10 _GPIO(220)
+#define DB8500_PIN_AJ11 _GPIO(221)
+#define DB8500_PIN_AJ9 _GPIO(222)
+#define DB8500_PIN_AH9 _GPIO(223)
+#define DB8500_PIN_AG9 _GPIO(224)
+#define DB8500_PIN_AG8 _GPIO(225)
+#define DB8500_PIN_AF8 _GPIO(226)
+#define DB8500_PIN_AH7 _GPIO(227)
+#define DB8500_PIN_AJ6 _GPIO(228)
+#define DB8500_PIN_AG7 _GPIO(229)
+#define DB8500_PIN_AF7 _GPIO(230)
+/* Hole */
+#define DB8500_PIN_AF28 _GPIO(256)
+#define DB8500_PIN_AE29 _GPIO(257)
+#define DB8500_PIN_AD29 _GPIO(258)
+#define DB8500_PIN_AC29 _GPIO(259)
+#define DB8500_PIN_AD28 _GPIO(260)
+#define DB8500_PIN_AD26 _GPIO(261)
+#define DB8500_PIN_AE26 _GPIO(262)
+#define DB8500_PIN_AG29 _GPIO(263)
+#define DB8500_PIN_AE27 _GPIO(264)
+#define DB8500_PIN_AD27 _GPIO(265)
+#define DB8500_PIN_AC28 _GPIO(266)
+#define DB8500_PIN_AC27 _GPIO(267)
+
+/*
+ * The names of the pins are denoted by GPIO number and ball name, even
+ * though they can be used for other things than GPIO, this is the first
+ * column in the table of the data sheet and often used on schematics and
+ * such.
+ */
+static const struct pinctrl_pin_desc nmk_db8500_pins[] = {
+ PINCTRL_PIN(DB8500_PIN_AJ5, "GPIO0_AJ5"),
+ PINCTRL_PIN(DB8500_PIN_AJ3, "GPIO1_AJ3"),
+ PINCTRL_PIN(DB8500_PIN_AH4, "GPIO2_AH4"),
+ PINCTRL_PIN(DB8500_PIN_AH3, "GPIO3_AH3"),
+ PINCTRL_PIN(DB8500_PIN_AH6, "GPIO4_AH6"),
+ PINCTRL_PIN(DB8500_PIN_AG6, "GPIO5_AG6"),
+ PINCTRL_PIN(DB8500_PIN_AF6, "GPIO6_AF6"),
+ PINCTRL_PIN(DB8500_PIN_AG5, "GPIO7_AG5"),
+ PINCTRL_PIN(DB8500_PIN_AD5, "GPIO8_AD5"),
+ PINCTRL_PIN(DB8500_PIN_AE4, "GPIO9_AE4"),
+ PINCTRL_PIN(DB8500_PIN_AF5, "GPIO10_AF5"),
+ PINCTRL_PIN(DB8500_PIN_AG4, "GPIO11_AG4"),
+ PINCTRL_PIN(DB8500_PIN_AC4, "GPIO12_AC4"),
+ PINCTRL_PIN(DB8500_PIN_AF3, "GPIO13_AF3"),
+ PINCTRL_PIN(DB8500_PIN_AE3, "GPIO14_AE3"),
+ PINCTRL_PIN(DB8500_PIN_AC3, "GPIO15_AC3"),
+ PINCTRL_PIN(DB8500_PIN_AD3, "GPIO16_AD3"),
+ PINCTRL_PIN(DB8500_PIN_AD4, "GPIO17_AD4"),
+ PINCTRL_PIN(DB8500_PIN_AC2, "GPIO18_AC2"),
+ PINCTRL_PIN(DB8500_PIN_AC1, "GPIO19_AC1"),
+ PINCTRL_PIN(DB8500_PIN_AB4, "GPIO20_AB4"),
+ PINCTRL_PIN(DB8500_PIN_AB3, "GPIO21_AB3"),
+ PINCTRL_PIN(DB8500_PIN_AA3, "GPIO22_AA3"),
+ PINCTRL_PIN(DB8500_PIN_AA4, "GPIO23_AA4"),
+ PINCTRL_PIN(DB8500_PIN_AB2, "GPIO24_AB2"),
+ PINCTRL_PIN(DB8500_PIN_Y4, "GPIO25_Y4"),
+ PINCTRL_PIN(DB8500_PIN_Y2, "GPIO26_Y2"),
+ PINCTRL_PIN(DB8500_PIN_AA2, "GPIO27_AA2"),
+ PINCTRL_PIN(DB8500_PIN_AA1, "GPIO28_AA1"),
+ PINCTRL_PIN(DB8500_PIN_W2, "GPIO29_W2"),
+ PINCTRL_PIN(DB8500_PIN_W3, "GPIO30_W3"),
+ PINCTRL_PIN(DB8500_PIN_V3, "GPIO31_V3"),
+ PINCTRL_PIN(DB8500_PIN_V2, "GPIO32_V2"),
+ PINCTRL_PIN(DB8500_PIN_AF2, "GPIO33_AF2"),
+ PINCTRL_PIN(DB8500_PIN_AE1, "GPIO34_AE1"),
+ PINCTRL_PIN(DB8500_PIN_AE2, "GPIO35_AE2"),
+ PINCTRL_PIN(DB8500_PIN_AG2, "GPIO36_AG2"),
+ /* Hole */
+ PINCTRL_PIN(DB8500_PIN_F3, "GPIO64_F3"),
+ PINCTRL_PIN(DB8500_PIN_F1, "GPIO65_F1"),
+ PINCTRL_PIN(DB8500_PIN_G3, "GPIO66_G3"),
+ PINCTRL_PIN(DB8500_PIN_G2, "GPIO67_G2"),
+ PINCTRL_PIN(DB8500_PIN_E1, "GPIO68_E1"),
+ PINCTRL_PIN(DB8500_PIN_E2, "GPIO69_E2"),
+ PINCTRL_PIN(DB8500_PIN_G5, "GPIO70_G5"),
+ PINCTRL_PIN(DB8500_PIN_G4, "GPIO71_G4"),
+ PINCTRL_PIN(DB8500_PIN_H4, "GPIO72_H4"),
+ PINCTRL_PIN(DB8500_PIN_H3, "GPIO73_H3"),
+ PINCTRL_PIN(DB8500_PIN_J3, "GPIO74_J3"),
+ PINCTRL_PIN(DB8500_PIN_H2, "GPIO75_H2"),
+ PINCTRL_PIN(DB8500_PIN_J2, "GPIO76_J2"),
+ PINCTRL_PIN(DB8500_PIN_H1, "GPIO77_H1"),
+ PINCTRL_PIN(DB8500_PIN_F4, "GPIO78_F4"),
+ PINCTRL_PIN(DB8500_PIN_E3, "GPIO79_E3"),
+ PINCTRL_PIN(DB8500_PIN_E4, "GPIO80_E4"),
+ PINCTRL_PIN(DB8500_PIN_D2, "GPIO81_D2"),
+ PINCTRL_PIN(DB8500_PIN_C1, "GPIO82_C1"),
+ PINCTRL_PIN(DB8500_PIN_D3, "GPIO83_D3"),
+ PINCTRL_PIN(DB8500_PIN_C2, "GPIO84_C2"),
+ PINCTRL_PIN(DB8500_PIN_D5, "GPIO85_D5"),
+ PINCTRL_PIN(DB8500_PIN_C6, "GPIO86_C6"),
+ PINCTRL_PIN(DB8500_PIN_B3, "GPIO87_B3"),
+ PINCTRL_PIN(DB8500_PIN_C4, "GPIO88_C4"),
+ PINCTRL_PIN(DB8500_PIN_E6, "GPIO89_E6"),
+ PINCTRL_PIN(DB8500_PIN_A3, "GPIO90_A3"),
+ PINCTRL_PIN(DB8500_PIN_B6, "GPIO91_B6"),
+ PINCTRL_PIN(DB8500_PIN_D6, "GPIO92_D6"),
+ PINCTRL_PIN(DB8500_PIN_B7, "GPIO93_B7"),
+ PINCTRL_PIN(DB8500_PIN_D7, "GPIO94_D7"),
+ PINCTRL_PIN(DB8500_PIN_E8, "GPIO95_E8"),
+ PINCTRL_PIN(DB8500_PIN_D8, "GPIO96_D8"),
+ PINCTRL_PIN(DB8500_PIN_D9, "GPIO97_D9"),
+ /* Hole */
+ PINCTRL_PIN(DB8500_PIN_A5, "GPIO128_A5"),
+ PINCTRL_PIN(DB8500_PIN_B4, "GPIO129_B4"),
+ PINCTRL_PIN(DB8500_PIN_C8, "GPIO130_C8"),
+ PINCTRL_PIN(DB8500_PIN_A12, "GPIO131_A12"),
+ PINCTRL_PIN(DB8500_PIN_C10, "GPIO132_C10"),
+ PINCTRL_PIN(DB8500_PIN_B10, "GPIO133_B10"),
+ PINCTRL_PIN(DB8500_PIN_B9, "GPIO134_B9"),
+ PINCTRL_PIN(DB8500_PIN_A9, "GPIO135_A9"),
+ PINCTRL_PIN(DB8500_PIN_C7, "GPIO136_C7"),
+ PINCTRL_PIN(DB8500_PIN_A7, "GPIO137_A7"),
+ PINCTRL_PIN(DB8500_PIN_C5, "GPIO138_C5"),
+ PINCTRL_PIN(DB8500_PIN_C9, "GPIO139_C9"),
+ PINCTRL_PIN(DB8500_PIN_B11, "GPIO140_B11"),
+ PINCTRL_PIN(DB8500_PIN_C12, "GPIO141_C12"),
+ PINCTRL_PIN(DB8500_PIN_C11, "GPIO142_C11"),
+ PINCTRL_PIN(DB8500_PIN_D12, "GPIO143_D12"),
+ PINCTRL_PIN(DB8500_PIN_B13, "GPIO144_B13"),
+ PINCTRL_PIN(DB8500_PIN_C13, "GPIO145_C13"),
+ PINCTRL_PIN(DB8500_PIN_D13, "GPIO146_D13"),
+ PINCTRL_PIN(DB8500_PIN_C15, "GPIO147_C15"),
+ PINCTRL_PIN(DB8500_PIN_B16, "GPIO148_B16"),
+ PINCTRL_PIN(DB8500_PIN_B14, "GPIO149_B14"),
+ PINCTRL_PIN(DB8500_PIN_C14, "GPIO150_C14"),
+ PINCTRL_PIN(DB8500_PIN_D17, "GPIO151_D17"),
+ PINCTRL_PIN(DB8500_PIN_D16, "GPIO152_D16"),
+ PINCTRL_PIN(DB8500_PIN_B17, "GPIO153_B17"),
+ PINCTRL_PIN(DB8500_PIN_C16, "GPIO154_C16"),
+ PINCTRL_PIN(DB8500_PIN_C19, "GPIO155_C19"),
+ PINCTRL_PIN(DB8500_PIN_C17, "GPIO156_C17"),
+ PINCTRL_PIN(DB8500_PIN_A18, "GPIO157_A18"),
+ PINCTRL_PIN(DB8500_PIN_C18, "GPIO158_C18"),
+ PINCTRL_PIN(DB8500_PIN_B19, "GPIO159_B19"),
+ PINCTRL_PIN(DB8500_PIN_B20, "GPIO160_B20"),
+ PINCTRL_PIN(DB8500_PIN_D21, "GPIO161_D21"),
+ PINCTRL_PIN(DB8500_PIN_D20, "GPIO162_D20"),
+ PINCTRL_PIN(DB8500_PIN_C20, "GPIO163_C20"),
+ PINCTRL_PIN(DB8500_PIN_B21, "GPIO164_B21"),
+ PINCTRL_PIN(DB8500_PIN_C21, "GPIO165_C21"),
+ PINCTRL_PIN(DB8500_PIN_A22, "GPIO166_A22"),
+ PINCTRL_PIN(DB8500_PIN_B24, "GPIO167_B24"),
+ PINCTRL_PIN(DB8500_PIN_C22, "GPIO168_C22"),
+ PINCTRL_PIN(DB8500_PIN_D22, "GPIO169_D22"),
+ PINCTRL_PIN(DB8500_PIN_C23, "GPIO170_C23"),
+ PINCTRL_PIN(DB8500_PIN_D23, "GPIO171_D23"),
+ /* Hole */
+ PINCTRL_PIN(DB8500_PIN_AJ27, "GPIO192_AJ27"),
+ PINCTRL_PIN(DB8500_PIN_AH27, "GPIO193_AH27"),
+ PINCTRL_PIN(DB8500_PIN_AF27, "GPIO194_AF27"),
+ PINCTRL_PIN(DB8500_PIN_AG28, "GPIO195_AG28"),
+ PINCTRL_PIN(DB8500_PIN_AG26, "GPIO196_AG26"),
+ PINCTRL_PIN(DB8500_PIN_AH24, "GPIO197_AH24"),
+ PINCTRL_PIN(DB8500_PIN_AG25, "GPIO198_AG25"),
+ PINCTRL_PIN(DB8500_PIN_AH23, "GPIO199_AH23"),
+ PINCTRL_PIN(DB8500_PIN_AH26, "GPIO200_AH26"),
+ PINCTRL_PIN(DB8500_PIN_AF24, "GPIO201_AF24"),
+ PINCTRL_PIN(DB8500_PIN_AF25, "GPIO202_AF25"),
+ PINCTRL_PIN(DB8500_PIN_AE23, "GPIO203_AE23"),
+ PINCTRL_PIN(DB8500_PIN_AF23, "GPIO204_AF23"),
+ PINCTRL_PIN(DB8500_PIN_AG23, "GPIO205_AG23"),
+ PINCTRL_PIN(DB8500_PIN_AG24, "GPIO206_AG24"),
+ PINCTRL_PIN(DB8500_PIN_AJ23, "GPIO207_AJ23"),
+ PINCTRL_PIN(DB8500_PIN_AH16, "GPIO208_AH16"),
+ PINCTRL_PIN(DB8500_PIN_AG15, "GPIO209_AG15"),
+ PINCTRL_PIN(DB8500_PIN_AJ15, "GPIO210_AJ15"),
+ PINCTRL_PIN(DB8500_PIN_AG14, "GPIO211_AG14"),
+ PINCTRL_PIN(DB8500_PIN_AF13, "GPIO212_AF13"),
+ PINCTRL_PIN(DB8500_PIN_AG13, "GPIO213_AG13"),
+ PINCTRL_PIN(DB8500_PIN_AH15, "GPIO214_AH15"),
+ PINCTRL_PIN(DB8500_PIN_AH13, "GPIO215_AH13"),
+ PINCTRL_PIN(DB8500_PIN_AG12, "GPIO216_AG12"),
+ PINCTRL_PIN(DB8500_PIN_AH12, "GPIO217_AH12"),
+ PINCTRL_PIN(DB8500_PIN_AH11, "GPIO218_AH11"),
+ PINCTRL_PIN(DB8500_PIN_AG10, "GPIO219_AG10"),
+ PINCTRL_PIN(DB8500_PIN_AH10, "GPIO220_AH10"),
+ PINCTRL_PIN(DB8500_PIN_AJ11, "GPIO221_AJ11"),
+ PINCTRL_PIN(DB8500_PIN_AJ9, "GPIO222_AJ9"),
+ PINCTRL_PIN(DB8500_PIN_AH9, "GPIO223_AH9"),
+ PINCTRL_PIN(DB8500_PIN_AG9, "GPIO224_AG9"),
+ PINCTRL_PIN(DB8500_PIN_AG8, "GPIO225_AG8"),
+ PINCTRL_PIN(DB8500_PIN_AF8, "GPIO226_AF8"),
+ PINCTRL_PIN(DB8500_PIN_AH7, "GPIO227_AH7"),
+ PINCTRL_PIN(DB8500_PIN_AJ6, "GPIO228_AJ6"),
+ PINCTRL_PIN(DB8500_PIN_AG7, "GPIO229_AG7"),
+ PINCTRL_PIN(DB8500_PIN_AF7, "GPIO230_AF7"),
+ /* Hole */
+ PINCTRL_PIN(DB8500_PIN_AF28, "GPIO256_AF28"),
+ PINCTRL_PIN(DB8500_PIN_AE29, "GPIO257_AE29"),
+ PINCTRL_PIN(DB8500_PIN_AD29, "GPIO258_AD29"),
+ PINCTRL_PIN(DB8500_PIN_AC29, "GPIO259_AC29"),
+ PINCTRL_PIN(DB8500_PIN_AD28, "GPIO260_AD28"),
+ PINCTRL_PIN(DB8500_PIN_AD26, "GPIO261_AD26"),
+ PINCTRL_PIN(DB8500_PIN_AE26, "GPIO262_AE26"),
+ PINCTRL_PIN(DB8500_PIN_AG29, "GPIO263_AG29"),
+ PINCTRL_PIN(DB8500_PIN_AE27, "GPIO264_AE27"),
+ PINCTRL_PIN(DB8500_PIN_AD27, "GPIO265_AD27"),
+ PINCTRL_PIN(DB8500_PIN_AC28, "GPIO266_AC28"),
+ PINCTRL_PIN(DB8500_PIN_AC27, "GPIO267_AC27"),
+};
+
+#define DB8500_GPIO_RANGE(a, b, c) { .name = "DB8500", .id = a, .base = b, \
+ .pin_base = b, .npins = c }
+
+/*
+ * This matches the 32-pin gpio chips registered by the GPIO portion. This
+ * cannot be const since we assign the struct gpio_chip * pointer at runtime.
+ */
+static struct pinctrl_gpio_range nmk_db8500_ranges[] = {
+ DB8500_GPIO_RANGE(0, 0, 32),
+ DB8500_GPIO_RANGE(1, 32, 5),
+ DB8500_GPIO_RANGE(2, 64, 32),
+ DB8500_GPIO_RANGE(3, 96, 2),
+ DB8500_GPIO_RANGE(4, 128, 32),
+ DB8500_GPIO_RANGE(5, 160, 12),
+ DB8500_GPIO_RANGE(6, 192, 32),
+ DB8500_GPIO_RANGE(7, 224, 7),
+ DB8500_GPIO_RANGE(8, 256, 12),
+};
+
+/*
+ * Read the pin group names like this:
+ * u0_a_1 = first groups of pins for uart0 on alt function a
+ * i2c2_b_2 = second group of pins for i2c2 on alt function b
+ *
+ * The groups are arranged as sets per altfunction column, so we can
+ * mux in one group at a time by selecting the same altfunction for them
+ * all. When functions require pins on different altfunctions, you need
+ * to combine several groups.
+ */
+
+/* Altfunction A column */
+static const unsigned u0_a_1_pins[] = { DB8500_PIN_AJ5, DB8500_PIN_AJ3,
+ DB8500_PIN_AH4, DB8500_PIN_AH3 };
+static const unsigned u1rxtx_a_1_pins[] = { DB8500_PIN_AH6, DB8500_PIN_AG6 };
+static const unsigned u1ctsrts_a_1_pins[] = { DB8500_PIN_AF6, DB8500_PIN_AG5 };
+/* Image processor I2C line, this is driven by image processor firmware */
+static const unsigned ipi2c_a_1_pins[] = { DB8500_PIN_AD5, DB8500_PIN_AE4 };
+static const unsigned ipi2c_a_2_pins[] = { DB8500_PIN_AF5, DB8500_PIN_AG4 };
+/* MSP0 can only be on these pins, but TXD and RXD can be flipped */
+static const unsigned msp0txrx_a_1_pins[] = { DB8500_PIN_AC4, DB8500_PIN_AC3 };
+static const unsigned msp0tfstck_a_1_pins[] = { DB8500_PIN_AF3, DB8500_PIN_AE3 };
+static const unsigned msp0rfsrck_a_1_pins[] = { DB8500_PIN_AD3, DB8500_PIN_AD4 };
+/* Basic pins of the MMC/SD card 0 interface */
+static const unsigned mc0_a_1_pins[] = { DB8500_PIN_AC2, DB8500_PIN_AC1,
+ DB8500_PIN_AB4, DB8500_PIN_AA3, DB8500_PIN_AA4, DB8500_PIN_AB2,
+ DB8500_PIN_Y4, DB8500_PIN_Y2, DB8500_PIN_AA2, DB8500_PIN_AA1 };
+/* Often only 4 bits are used, then these are not needed (only used for MMC) */
+static const unsigned mc0_dat47_a_1_pins[] = { DB8500_PIN_W2, DB8500_PIN_W3,
+ DB8500_PIN_V3, DB8500_PIN_V2};
+static const unsigned mc0dat31dir_a_1_pins[] = { DB8500_PIN_AB3 };
+/* MSP1 can only be on these pins, but TXD and RXD can be flipped */
+static const unsigned msp1txrx_a_1_pins[] = { DB8500_PIN_AF2, DB8500_PIN_AG2 };
+static const unsigned msp1_a_1_pins[] = { DB8500_PIN_AE1, DB8500_PIN_AE2 };
+/* LCD interface */
+static const unsigned lcdb_a_1_pins[] = { DB8500_PIN_F3, DB8500_PIN_F1,
+ DB8500_PIN_G3, DB8500_PIN_G2 };
+static const unsigned lcdvsi0_a_1_pins[] = { DB8500_PIN_E1 };
+static const unsigned lcdvsi1_a_1_pins[] = { DB8500_PIN_E2 };
+static const unsigned lcd_d0_d7_a_1_pins[] = {
+ DB8500_PIN_G5, DB8500_PIN_G4, DB8500_PIN_H4, DB8500_PIN_H3,
+ DB8500_PIN_J3, DB8500_PIN_H2, DB8500_PIN_J2, DB8500_PIN_H1 };
+/* D8 thru D11 often used as TVOUT lines */
+static const unsigned lcd_d8_d11_a_1_pins[] = { DB8500_PIN_F4,
+ DB8500_PIN_E3, DB8500_PIN_E4, DB8500_PIN_D2 };
+static const unsigned lcd_d12_d23_a_1_pins[] = {
+ DB8500_PIN_C1, DB8500_PIN_D3, DB8500_PIN_C2, DB8500_PIN_D5,
+ DB8500_PIN_C6, DB8500_PIN_B3, DB8500_PIN_C4, DB8500_PIN_E6,
+ DB8500_PIN_A3, DB8500_PIN_B6, DB8500_PIN_D6, DB8500_PIN_B7 };
+static const unsigned kp_a_1_pins[] = { DB8500_PIN_D7, DB8500_PIN_E8,
+ DB8500_PIN_D8, DB8500_PIN_D9 };
+static const unsigned kpskaskb_a_1_pins[] = { DB8500_PIN_D17, DB8500_PIN_D16 };
+static const unsigned kp_a_2_pins[] = {
+ DB8500_PIN_B17, DB8500_PIN_C16, DB8500_PIN_C19, DB8500_PIN_C17,
+ DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19, DB8500_PIN_B20,
+ DB8500_PIN_D21, DB8500_PIN_D20, DB8500_PIN_C20, DB8500_PIN_B21,
+ DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24, DB8500_PIN_C22 };
+/* MC2 has 8 data lines and no direction control, so only for (e)MMC */
+static const unsigned mc2_a_1_pins[] = { DB8500_PIN_A5, DB8500_PIN_B4,
+ DB8500_PIN_C8, DB8500_PIN_A12, DB8500_PIN_C10, DB8500_PIN_B10,
+ DB8500_PIN_B9, DB8500_PIN_A9, DB8500_PIN_C7, DB8500_PIN_A7,
+ DB8500_PIN_C5 };
+static const unsigned ssp1_a_1_pins[] = { DB8500_PIN_C9, DB8500_PIN_B11,
+ DB8500_PIN_C12, DB8500_PIN_C11 };
+static const unsigned ssp0_a_1_pins[] = { DB8500_PIN_D12, DB8500_PIN_B13,
+ DB8500_PIN_C13, DB8500_PIN_D13 };
+static const unsigned i2c0_a_1_pins[] = { DB8500_PIN_C15, DB8500_PIN_B16 };
+/*
+ * Image processor GPIO pins are named "ipgpio" and have their own
+ * numberspace
+ */
+static const unsigned ipgpio0_a_1_pins[] = { DB8500_PIN_B14 };
+static const unsigned ipgpio1_a_1_pins[] = { DB8500_PIN_C14 };
+/* Three modem pins named RF_PURn, MODEM_STATE and MODEM_PWREN */
+static const unsigned modem_a_1_pins[] = { DB8500_PIN_D22, DB8500_PIN_C23,
+ DB8500_PIN_D23 };
+/*
+ * This MSP cannot switch RX and TX, SCK in a separate group since this
+ * seems to be optional.
+ */
+static const unsigned msp2sck_a_1_pins[] = { DB8500_PIN_AJ27 };
+static const unsigned msp2_a_1_pins[] = { DB8500_PIN_AH27, DB8500_PIN_AF27,
+ DB8500_PIN_AG28, DB8500_PIN_AG26 };
+static const unsigned mc4_a_1_pins[] = { DB8500_PIN_AH24, DB8500_PIN_AG25,
+ DB8500_PIN_AH23, DB8500_PIN_AH26, DB8500_PIN_AF24, DB8500_PIN_AF25,
+ DB8500_PIN_AE23, DB8500_PIN_AF23, DB8500_PIN_AG23, DB8500_PIN_AG24,
+ DB8500_PIN_AJ23 };
+/* MC1 has only 4 data pins, designed for SD or SDIO exclusively */
+static const unsigned mc1_a_1_pins[] = { DB8500_PIN_AH16, DB8500_PIN_AG15,
+ DB8500_PIN_AJ15, DB8500_PIN_AG14, DB8500_PIN_AF13, DB8500_PIN_AG13,
+ DB8500_PIN_AH15 };
+static const unsigned mc1dir_a_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AG12,
+ DB8500_PIN_AH12, DB8500_PIN_AH11 };
+static const unsigned hsir_a_1_pins[] = { DB8500_PIN_AG10, DB8500_PIN_AH10 };
+static const unsigned hsit_a_1_pins[] = { DB8500_PIN_AJ11, DB8500_PIN_AJ9,
+ DB8500_PIN_AH9, DB8500_PIN_AG9, DB8500_PIN_AG8, DB8500_PIN_AF8 };
+static const unsigned clkout_a_1_pins[] = { DB8500_PIN_AH7, DB8500_PIN_AJ6 };
+static const unsigned clkout_a_2_pins[] = { DB8500_PIN_AG7, DB8500_PIN_AF7 };
+static const unsigned usb_a_1_pins[] = { DB8500_PIN_AF28, DB8500_PIN_AE29,
+ DB8500_PIN_AD29, DB8500_PIN_AC29, DB8500_PIN_AD28, DB8500_PIN_AD26,
+ DB8500_PIN_AE26, DB8500_PIN_AG29, DB8500_PIN_AE27, DB8500_PIN_AD27,
+ DB8500_PIN_AC28, DB8500_PIN_AC27 };
+
+/* Altfunction B column */
+static const unsigned trig_b_1_pins[] = { DB8500_PIN_AJ5, DB8500_PIN_AJ3 };
+static const unsigned i2c4_b_1_pins[] = { DB8500_PIN_AH6, DB8500_PIN_AG6 };
+static const unsigned i2c1_b_1_pins[] = { DB8500_PIN_AF6, DB8500_PIN_AG5 };
+static const unsigned i2c2_b_1_pins[] = { DB8500_PIN_AD5, DB8500_PIN_AE4 };
+static const unsigned i2c2_b_2_pins[] = { DB8500_PIN_AF5, DB8500_PIN_AG4 };
+static const unsigned msp0txrx_b_1_pins[] = { DB8500_PIN_AC4, DB8500_PIN_AC3 };
+static const unsigned i2c1_b_2_pins[] = { DB8500_PIN_AD3, DB8500_PIN_AD4 };
+/* Just RX and TX for UART2 */
+static const unsigned u2rxtx_b_1_pins[] = { DB8500_PIN_AC2, DB8500_PIN_AC1 };
+static const unsigned uartmodtx_b_1_pins[] = { DB8500_PIN_AB4 };
+static const unsigned msp0sck_b_1_pins[] = { DB8500_PIN_AB3 };
+static const unsigned uartmodrx_b_1_pins[] = { DB8500_PIN_AA3 };
+static const unsigned stmmod_b_1_pins[] = { DB8500_PIN_AA4, DB8500_PIN_Y4,
+ DB8500_PIN_Y2, DB8500_PIN_AA2, DB8500_PIN_AA1 };
+static const unsigned uartmodrx_b_2_pins[] = { DB8500_PIN_AB2 };
+static const unsigned spi3_b_1_pins[] = { DB8500_PIN_W2, DB8500_PIN_W3,
+ DB8500_PIN_V3, DB8500_PIN_V2 };
+static const unsigned msp1txrx_b_1_pins[] = { DB8500_PIN_AF2, DB8500_PIN_AG2 };
+static const unsigned kp_b_1_pins[] = { DB8500_PIN_F3, DB8500_PIN_F1,
+ DB8500_PIN_G3, DB8500_PIN_G2, DB8500_PIN_E1, DB8500_PIN_E2,
+ DB8500_PIN_G5, DB8500_PIN_G4, DB8500_PIN_H4, DB8500_PIN_H3,
+ DB8500_PIN_J3, DB8500_PIN_H2, DB8500_PIN_J2, DB8500_PIN_H1,
+ DB8500_PIN_F4, DB8500_PIN_E3, DB8500_PIN_E4, DB8500_PIN_D2,
+ DB8500_PIN_C1, DB8500_PIN_D3, DB8500_PIN_C2, DB8500_PIN_D5 };
+static const unsigned sm_b_1_pins[] = { DB8500_PIN_C6, DB8500_PIN_B3,
+ DB8500_PIN_C4, DB8500_PIN_E6, DB8500_PIN_A3, DB8500_PIN_B6,
+ DB8500_PIN_D6, DB8500_PIN_B7, DB8500_PIN_D7, DB8500_PIN_D8,
+ DB8500_PIN_D9, DB8500_PIN_A5, DB8500_PIN_B4, DB8500_PIN_C8,
+ DB8500_PIN_A12, DB8500_PIN_C10, DB8500_PIN_B10, DB8500_PIN_B9,
+ DB8500_PIN_A9, DB8500_PIN_C7, DB8500_PIN_A7, DB8500_PIN_C5,
+ DB8500_PIN_C9, DB8500_PIN_B14 };
+/* This chip select pin can be "ps0" in alt B so have it separately */
+static const unsigned smcs0_b_1_pins[] = { DB8500_PIN_E8 };
+static const unsigned ipgpio7_b_1_pins[] = { DB8500_PIN_B11 };
+static const unsigned ipgpio2_b_1_pins[] = { DB8500_PIN_C12 };
+static const unsigned ipgpio3_b_1_pins[] = { DB8500_PIN_C11 };
+static const unsigned lcdaclk_b_1_pins[] = { DB8500_PIN_C14 };
+static const unsigned lcda_b_1_pins[] = { DB8500_PIN_D22,
+ DB8500_PIN_C23, DB8500_PIN_D23 };
+static const unsigned lcd_b_1_pins[] = { DB8500_PIN_D17, DB8500_PIN_D16,
+ DB8500_PIN_B17, DB8500_PIN_C16, DB8500_PIN_C19, DB8500_PIN_C17,
+ DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19, DB8500_PIN_B20,
+ DB8500_PIN_D21, DB8500_PIN_D20, DB8500_PIN_C20, DB8500_PIN_B21,
+ DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24, DB8500_PIN_C22 };
+static const unsigned ddrtrig_b_1_pins[] = { DB8500_PIN_AJ27 };
+static const unsigned pwl_b_1_pins[] = { DB8500_PIN_AF25 };
+static const unsigned spi1_b_1_pins[] = { DB8500_PIN_AG15, DB8500_PIN_AF13,
+ DB8500_PIN_AG13, DB8500_PIN_AH15 };
+static const unsigned mc3_b_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AG12,
+ DB8500_PIN_AH12, DB8500_PIN_AH11, DB8500_PIN_AG10, DB8500_PIN_AH10,
+ DB8500_PIN_AJ11, DB8500_PIN_AJ9, DB8500_PIN_AH9, DB8500_PIN_AG9,
+ DB8500_PIN_AG8 };
+static const unsigned pwl_b_2_pins[] = { DB8500_PIN_AF8 };
+static const unsigned pwl_b_3_pins[] = { DB8500_PIN_AG7 };
+static const unsigned pwl_b_4_pins[] = { DB8500_PIN_AF7 };
+
+/* Altfunction C column */
+static const unsigned ipjtag_c_1_pins[] = { DB8500_PIN_AJ5, DB8500_PIN_AJ3,
+ DB8500_PIN_AH4, DB8500_PIN_AH3, DB8500_PIN_AH6 };
+static const unsigned ipgpio6_c_1_pins[] = { DB8500_PIN_AG6 };
+static const unsigned ipgpio0_c_1_pins[] = { DB8500_PIN_AF6 };
+static const unsigned ipgpio1_c_1_pins[] = { DB8500_PIN_AG5 };
+static const unsigned ipgpio3_c_1_pins[] = { DB8500_PIN_AF5 };
+static const unsigned ipgpio2_c_1_pins[] = { DB8500_PIN_AG4 };
+static const unsigned slim0_c_1_pins[] = { DB8500_PIN_AD3, DB8500_PIN_AD4 };
+/* Optional 4-bit Memory Stick interface */
+static const unsigned ms_c_1_pins[] = { DB8500_PIN_AC2, DB8500_PIN_AC1,
+ DB8500_PIN_AB3, DB8500_PIN_AA3, DB8500_PIN_AA4, DB8500_PIN_AB2,
+ DB8500_PIN_Y4, DB8500_PIN_Y2, DB8500_PIN_AA2, DB8500_PIN_AA1 };
+static const unsigned iptrigout_c_1_pins[] = { DB8500_PIN_AB4 };
+static const unsigned u2rxtx_c_1_pins[] = { DB8500_PIN_W2, DB8500_PIN_W3 };
+static const unsigned u2ctsrts_c_1_pins[] = { DB8500_PIN_V3, DB8500_PIN_V2 };
+static const unsigned u0_c_1_pins[] = { DB8500_PIN_AF2, DB8500_PIN_AE1,
+ DB8500_PIN_AE2, DB8500_PIN_AG2 };
+static const unsigned ipgpio4_c_1_pins[] = { DB8500_PIN_F3 };
+static const unsigned ipgpio5_c_1_pins[] = { DB8500_PIN_F1 };
+static const unsigned ipgpio6_c_2_pins[] = { DB8500_PIN_G3 };
+static const unsigned ipgpio7_c_1_pins[] = { DB8500_PIN_G2 };
+static const unsigned smcleale_c_1_pins[] = { DB8500_PIN_E1, DB8500_PIN_E2 };
+static const unsigned stmape_c_1_pins[] = { DB8500_PIN_G5, DB8500_PIN_G4,
+ DB8500_PIN_H4, DB8500_PIN_H3, DB8500_PIN_J3 };
+static const unsigned u2rxtx_c_2_pins[] = { DB8500_PIN_H2, DB8500_PIN_J2 };
+static const unsigned ipgpio2_c_2_pins[] = { DB8500_PIN_F4 };
+static const unsigned ipgpio3_c_2_pins[] = { DB8500_PIN_E3 };
+static const unsigned ipgpio4_c_2_pins[] = { DB8500_PIN_E4 };
+static const unsigned ipgpio5_c_2_pins[] = { DB8500_PIN_D2 };
+static const unsigned mc5_c_1_pins[] = { DB8500_PIN_C6, DB8500_PIN_B3,
+ DB8500_PIN_C4, DB8500_PIN_E6, DB8500_PIN_A3, DB8500_PIN_B6,
+ DB8500_PIN_D6, DB8500_PIN_B7, DB8500_PIN_D7, DB8500_PIN_D8,
+ DB8500_PIN_D9 };
+static const unsigned mc2rstn_c_1_pins[] = { DB8500_PIN_C8 };
+static const unsigned kp_c_1_pins[] = { DB8500_PIN_C9, DB8500_PIN_B11,
+ DB8500_PIN_C12, DB8500_PIN_C11, DB8500_PIN_D17, DB8500_PIN_D16,
+ DB8500_PIN_C23, DB8500_PIN_D23 };
+static const unsigned smps1_c_1_pins[] = { DB8500_PIN_B14 };
+static const unsigned u2rxtx_c_3_pins[] = { DB8500_PIN_B17, DB8500_PIN_C16 };
+static const unsigned stmape_c_2_pins[] = { DB8500_PIN_C19, DB8500_PIN_C17,
+ DB8500_PIN_A18, DB8500_PIN_C18, DB8500_PIN_B19 };
+static const unsigned uartmodrx_c_1_pins[] = { DB8500_PIN_D21 };
+static const unsigned uartmodtx_c_1_pins[] = { DB8500_PIN_D20 };
+static const unsigned stmmod_c_1_pins[] = { DB8500_PIN_C20, DB8500_PIN_B21,
+ DB8500_PIN_C21, DB8500_PIN_A22, DB8500_PIN_B24 };
+static const unsigned usbsim_c_1_pins[] = { DB8500_PIN_D22 };
+static const unsigned mc4rstn_c_1_pins[] = { DB8500_PIN_AF25 };
+static const unsigned clkout_c_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AH12 };
+static const unsigned i2c3_c_1_pins[] = { DB8500_PIN_AG12, DB8500_PIN_AH11 };
+static const unsigned spi0_c_1_pins[] = { DB8500_PIN_AH10, DB8500_PIN_AH9,
+ DB8500_PIN_AG9, DB8500_PIN_AG8 };
+static const unsigned usbsim_c_2_pins[] = { DB8500_PIN_AF8 };
+static const unsigned i2c3_c_2_pins[] = { DB8500_PIN_AG7, DB8500_PIN_AF7 };
+
+/* Other C1 column */
+static const unsigned kp_oc1_1_pins[] = { DB8500_PIN_C6, DB8500_PIN_B3,
+ DB8500_PIN_C4, DB8500_PIN_E6, DB8500_PIN_A3, DB8500_PIN_B6,
+ DB8500_PIN_D6, DB8500_PIN_B7 };
+static const unsigned spi2_oc1_1_pins[] = { DB8500_PIN_AH13, DB8500_PIN_AG12,
+ DB8500_PIN_AH12, DB8500_PIN_AH11 };
+
+#define DB8500_PIN_GROUP(a,b) { .name = #a, .pins = a##_pins, \
+ .npins = ARRAY_SIZE(a##_pins), .altsetting = b }
+
+static const struct nmk_pingroup nmk_db8500_groups[] = {
+ /* Altfunction A column */
+ DB8500_PIN_GROUP(u0_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(u1rxtx_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(u1ctsrts_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(ipi2c_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(ipi2c_a_2, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(msp0txrx_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(msp0tfstck_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(msp0rfsrck_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(mc0_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(msp1txrx_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(msp1_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(lcdb_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(lcdvsi0_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(lcdvsi1_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(lcd_d0_d7_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(lcd_d8_d11_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(lcd_d12_d23_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(kp_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(mc2_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(ssp1_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(ssp0_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(i2c0_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(ipgpio0_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(ipgpio1_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(msp2sck_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(msp2_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(mc4_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(mc1_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(hsir_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(hsit_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(clkout_a_1, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(clkout_a_2, NMK_GPIO_ALT_A),
+ DB8500_PIN_GROUP(usb_a_1, NMK_GPIO_ALT_A),
+ /* Altfunction B column */
+ DB8500_PIN_GROUP(trig_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(i2c4_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(i2c1_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(i2c2_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(i2c2_b_2, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(msp0txrx_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(i2c1_b_2, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(u2rxtx_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(uartmodtx_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(msp0sck_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(uartmodrx_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(stmmod_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(uartmodrx_b_2, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(spi3_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(msp1txrx_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(kp_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(sm_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(smcs0_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(ipgpio7_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(ipgpio2_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(ipgpio3_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(lcdaclk_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(lcda_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(lcd_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(ddrtrig_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(pwl_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(spi1_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(mc3_b_1, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(pwl_b_2, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(pwl_b_3, NMK_GPIO_ALT_B),
+ DB8500_PIN_GROUP(pwl_b_4, NMK_GPIO_ALT_B),
+ /* Altfunction C column */
+ DB8500_PIN_GROUP(ipjtag_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio6_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio0_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio1_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio3_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio2_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(slim0_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ms_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(iptrigout_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(u2rxtx_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(u2ctsrts_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(u0_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio4_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio5_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio6_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio7_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(smcleale_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(stmape_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(u2rxtx_c_2, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio2_c_2, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio3_c_2, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio4_c_2, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(ipgpio5_c_2, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(mc5_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(mc2rstn_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(kp_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(smps1_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(u2rxtx_c_3, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(stmape_c_2, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(uartmodrx_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(uartmodtx_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(stmmod_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(usbsim_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(mc4rstn_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(clkout_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(i2c3_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(spi0_c_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(usbsim_c_2, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(i2c3_c_2, NMK_GPIO_ALT_C),
+ /* Other alt C1 column, these are still configured as alt C */
+ DB8500_PIN_GROUP(kp_oc1_1, NMK_GPIO_ALT_C),
+ DB8500_PIN_GROUP(spi2_oc1_1, NMK_GPIO_ALT_C),
+};
+
+/* We use this macro to define the groups applicable to a function */
+#define DB8500_FUNC_GROUPS(a, b...) \
+static const char * const a##_groups[] = { b };
+
+DB8500_FUNC_GROUPS(u0, "u0_a_1", "u0_c_1");
+DB8500_FUNC_GROUPS(u1, "u1rxtx_a_1", "u1ctsrts_a_1");
+/*
+ * UART2 can be muxed out with just RX/TX in four places, CTS+RTS is however
+ * only available on two pins in alternative function C
+ */
+DB8500_FUNC_GROUPS(u2, "u2rxtx_b_1", "u2rxtx_c_1", "u2ctsrts_c_1",
+ "u2rxtx_c_2", "u2rxtx_c_3");
+DB8500_FUNC_GROUPS(ipi2c, "ipi2c_a_1", "ipi2c_a_2");
+/*
+ * MSP0 can only be on a certain set of pins, but the TX/RX pins can be
+ * switched around by selecting the altfunction A or B. The SCK pin is
+ * only available on the altfunction B.
+ */
+DB8500_FUNC_GROUPS(msp0, "msp0txrx_a_1", "msp0tfstck_a_1", "msp0rfstck_a_1",
+ "msp0txrx_b_1", "msp0sck_b_1");
+DB8500_FUNC_GROUPS(mc0, "mc0_a_1");
+/* MSP0 can swap RX/TX like MSP0 but has no SCK pin available */
+DB8500_FUNC_GROUPS(msp1, "msp1txrx_a_1", "msp1_a_1", "msp1txrx_b_1");
+DB8500_FUNC_GROUPS(lcdb, "lcdb_a_1");
+DB8500_FUNC_GROUPS(lcd, "lcdvsi0_a_1", "lcdvsi1_a_1", "lcd_d0_d7_a_1",
+ "lcd_d8_d11_a_1", "lcd_d12_d23_a_1", "lcd_b_1");
+DB8500_FUNC_GROUPS(kp, "kp_a_1", "kp_b_1", "kp_c_1", "kp_oc1_1");
+DB8500_FUNC_GROUPS(mc2, "mc2_a_1", "mc2rstn_c_1");
+DB8500_FUNC_GROUPS(ssp1, "ssp1_a_1");
+DB8500_FUNC_GROUPS(ssp0, "ssp0_a_1");
+DB8500_FUNC_GROUPS(i2c0, "i2c0_a_1");
+/* The image processor has 8 GPIO pins that can be muxed out */
+DB8500_FUNC_GROUPS(ipgpio, "ipgpio0_a_1", "ipgpio1_a_1", "ipgpio7_b_1",
+ "ipgpio2_b_1", "ipgpio3_b_1", "ipgpio6_c_1", "ipgpio0_c_1",
+ "ipgpio1_c_1", "ipgpio3_c_1", "ipgpio2_c_1", "ipgpio4_c_1",
+ "ipgpio5_c_1", "ipgpio6_c_2", "ipgpio7_c_1", "ipgpio2_c_2",
+ "ipgpio3_c_2", "ipgpio4_c_2", "ipgpio5_c_2");
+/* MSP2 can not invert the RX/TX pins but has the optional SCK pin */
+DB8500_FUNC_GROUPS(msp2, "msp2sck_a_1", "msp2_a_1");
+DB8500_FUNC_GROUPS(mc4, "mc4_a_1", "mc4rstn_c_1");
+DB8500_FUNC_GROUPS(mc1, "mc1_a_1", "mc1dir_a_1");
+DB8500_FUNC_GROUPS(hsi, "hsir1_a_1", "hsit1_a_1");
+DB8500_FUNC_GROUPS(clkout, "clkout_a_1", "clkout_a_2", "clkout_c_1");
+DB8500_FUNC_GROUPS(usb, "usb_a_1");
+DB8500_FUNC_GROUPS(trig, "trig_b_1");
+DB8500_FUNC_GROUPS(i2c4, "i2c4_b_1");
+DB8500_FUNC_GROUPS(i2c1, "i2c1_b_1", "i2c1_b_2");
+DB8500_FUNC_GROUPS(i2c2, "i2c2_b_1", "i2c2_b_2");
+/*
+ * The modem UART can output its RX and TX pins in some different places,
+ * so select one of each.
+ */
+DB8500_FUNC_GROUPS(uartmod, "uartmodtx_b_1", "uartmodrx_b_1", "uartmodrx_b_2",
+ "uartmodrx_c_1", "uartmod_tx_c_1");
+DB8500_FUNC_GROUPS(stmmod, "stmmod_b_1", "stmmod_c_1");
+DB8500_FUNC_GROUPS(spi3, "spi3_b_1");
+/* Select between CS0 on alt B or PS1 on alt C */
+DB8500_FUNC_GROUPS(sm, "sm_b_1", "smcs0_b_1", "smcleale_c_1", "smps1_c_1");
+DB8500_FUNC_GROUPS(lcda, "lcdaclk_b_1", "lcda_b_1");
+DB8500_FUNC_GROUPS(ddrtrig, "ddrtrig_b_1");
+DB8500_FUNC_GROUPS(pwl, "pwl_b_1", "pwl_b_2", "pwl_b_3", "pwl_b_4");
+DB8500_FUNC_GROUPS(spi1, "spi1_b_1");
+DB8500_FUNC_GROUPS(mc3, "mc3_b_1");
+DB8500_FUNC_GROUPS(ipjtag, "ipjtag_c_1");
+DB8500_FUNC_GROUPS(slim0, "slim0_c_1");
+DB8500_FUNC_GROUPS(ms, "ms_c_1");
+DB8500_FUNC_GROUPS(iptrigout, "iptrigout_c_1");
+DB8500_FUNC_GROUPS(stmape, "stmape_c_1", "stmape_c_2");
+DB8500_FUNC_GROUPS(mc5, "mc5_c_1");
+DB8500_FUNC_GROUPS(usbsim, "usbsim_c_1", "usbsim_c_2");
+DB8500_FUNC_GROUPS(i2c3, "i2c3_c_1", "i2c3_c_2");
+DB8500_FUNC_GROUPS(spi0, "spi0_c_1");
+DB8500_FUNC_GROUPS(spi2, "spi2_oc1_1");
+
+#define FUNCTION(fname) \
+ { \
+ .name = #fname, \
+ .groups = fname##_groups, \
+ .ngroups = ARRAY_SIZE(fname##_groups), \
+ }
+
+static const struct nmk_function nmk_db8500_functions[] = {
+ FUNCTION(u0),
+ FUNCTION(u1),
+ FUNCTION(u2),
+ FUNCTION(ipi2c),
+ FUNCTION(msp0),
+ FUNCTION(mc0),
+ FUNCTION(msp1),
+ FUNCTION(lcdb),
+ FUNCTION(lcd),
+ FUNCTION(kp),
+ FUNCTION(mc2),
+ FUNCTION(ssp1),
+ FUNCTION(ssp0),
+ FUNCTION(i2c0),
+ FUNCTION(ipgpio),
+ FUNCTION(msp2),
+ FUNCTION(mc4),
+ FUNCTION(mc1),
+ FUNCTION(hsi),
+ FUNCTION(clkout),
+ FUNCTION(usb),
+ FUNCTION(trig),
+ FUNCTION(i2c4),
+ FUNCTION(i2c1),
+ FUNCTION(i2c2),
+ FUNCTION(uartmod),
+ FUNCTION(stmmod),
+ FUNCTION(spi3),
+ FUNCTION(sm),
+ FUNCTION(lcda),
+ FUNCTION(ddrtrig),
+ FUNCTION(pwl),
+ FUNCTION(spi1),
+ FUNCTION(mc3),
+ FUNCTION(ipjtag),
+ FUNCTION(slim0),
+ FUNCTION(ms),
+ FUNCTION(iptrigout),
+ FUNCTION(stmape),
+ FUNCTION(mc5),
+ FUNCTION(usbsim),
+ FUNCTION(i2c3),
+ FUNCTION(spi0),
+ FUNCTION(spi2),
+};
+
+static const struct nmk_pinctrl_soc_data nmk_db8500_soc = {
+ .gpio_ranges = nmk_db8500_ranges,
+ .gpio_num_ranges = ARRAY_SIZE(nmk_db8500_ranges),
+ .pins = nmk_db8500_pins,
+ .npins = ARRAY_SIZE(nmk_db8500_pins),
+ .functions = nmk_db8500_functions,
+ .nfunctions = ARRAY_SIZE(nmk_db8500_functions),
+ .groups = nmk_db8500_groups,
+ .ngroups = ARRAY_SIZE(nmk_db8500_groups),
+};
+
+void __devinit
+nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc)
+{
+ *soc = &nmk_db8500_soc;
+}
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
new file mode 100644
index 0000000..b8e01c3
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -0,0 +1,1780 @@
+/*
+ * Generic GPIO driver for logic cells found in the Nomadik SoC
+ *
+ * Copyright (C) 2008,2009 STMicroelectronics
+ * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it>
+ * Rewritten based on work by Prafulla WADASKAR <prafulla.wadaskar@st.com>
+ * Copyright (C) 2011 Linus Walleij <linus.walleij@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/slab.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/pinconf.h>
+/* Since we request GPIOs from ourself */
+#include <linux/pinctrl/consumer.h>
+
+#include <asm/mach/irq.h>
+
+#include <plat/pincfg.h>
+#include <plat/gpio-nomadik.h>
+
+#include "pinctrl-nomadik.h"
+
+/*
+ * The GPIO module in the Nomadik family of Systems-on-Chip is an
+ * AMBA device, managing 32 pins and alternate functions. The logic block
+ * is currently used in the Nomadik and ux500.
+ *
+ * Symbols in this file are called "nmk_gpio" for "nomadik gpio"
+ */
+
+#define NMK_GPIO_PER_CHIP 32
+
+struct nmk_gpio_chip {
+ struct gpio_chip chip;
+ struct irq_domain *domain;
+ void __iomem *addr;
+ struct clk *clk;
+ unsigned int bank;
+ unsigned int parent_irq;
+ int secondary_parent_irq;
+ u32 (*get_secondary_status)(unsigned int bank);
+ void (*set_ioforce)(bool enable);
+ spinlock_t lock;
+ bool sleepmode;
+ /* Keep track of configured edges */
+ u32 edge_rising;
+ u32 edge_falling;
+ u32 real_wake;
+ u32 rwimsc;
+ u32 fwimsc;
+ u32 rimsc;
+ u32 fimsc;
+ u32 pull_up;
+ u32 lowemi;
+};
+
+struct nmk_pinctrl {
+ struct device *dev;
+ struct pinctrl_dev *pctl;
+ const struct nmk_pinctrl_soc_data *soc;
+};
+
+static struct nmk_gpio_chip *
+nmk_gpio_chips[DIV_ROUND_UP(ARCH_NR_GPIOS, NMK_GPIO_PER_CHIP)];
+
+static DEFINE_SPINLOCK(nmk_gpio_slpm_lock);
+
+#define NUM_BANKS ARRAY_SIZE(nmk_gpio_chips)
+
+static void __nmk_gpio_set_mode(struct nmk_gpio_chip *nmk_chip,
+ unsigned offset, int gpio_mode)
+{
+ u32 bit = 1 << offset;
+ u32 afunc, bfunc;
+
+ afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & ~bit;
+ bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & ~bit;
+ if (gpio_mode & NMK_GPIO_ALT_A)
+ afunc |= bit;
+ if (gpio_mode & NMK_GPIO_ALT_B)
+ bfunc |= bit;
+ writel(afunc, nmk_chip->addr + NMK_GPIO_AFSLA);
+ writel(bfunc, nmk_chip->addr + NMK_GPIO_AFSLB);
+}
+
+static void __nmk_gpio_set_slpm(struct nmk_gpio_chip *nmk_chip,
+ unsigned offset, enum nmk_gpio_slpm mode)
+{
+ u32 bit = 1 << offset;
+ u32 slpm;
+
+ slpm = readl(nmk_chip->addr + NMK_GPIO_SLPC);
+ if (mode == NMK_GPIO_SLPM_NOCHANGE)
+ slpm |= bit;
+ else
+ slpm &= ~bit;
+ writel(slpm, nmk_chip->addr + NMK_GPIO_SLPC);
+}
+
+static void __nmk_gpio_set_pull(struct nmk_gpio_chip *nmk_chip,
+ unsigned offset, enum nmk_gpio_pull pull)
+{
+ u32 bit = 1 << offset;
+ u32 pdis;
+
+ pdis = readl(nmk_chip->addr + NMK_GPIO_PDIS);
+ if (pull == NMK_GPIO_PULL_NONE) {
+ pdis |= bit;
+ nmk_chip->pull_up &= ~bit;
+ } else {
+ pdis &= ~bit;
+ }
+
+ writel(pdis, nmk_chip->addr + NMK_GPIO_PDIS);
+
+ if (pull == NMK_GPIO_PULL_UP) {
+ nmk_chip->pull_up |= bit;
+ writel(bit, nmk_chip->addr + NMK_GPIO_DATS);
+ } else if (pull == NMK_GPIO_PULL_DOWN) {
+ nmk_chip->pull_up &= ~bit;
+ writel(bit, nmk_chip->addr + NMK_GPIO_DATC);
+ }
+}
+
+static void __nmk_gpio_set_lowemi(struct nmk_gpio_chip *nmk_chip,
+ unsigned offset, bool lowemi)
+{
+ u32 bit = BIT(offset);
+ bool enabled = nmk_chip->lowemi & bit;
+
+ if (lowemi == enabled)
+ return;
+
+ if (lowemi)
+ nmk_chip->lowemi |= bit;
+ else
+ nmk_chip->lowemi &= ~bit;
+
+ writel_relaxed(nmk_chip->lowemi,
+ nmk_chip->addr + NMK_GPIO_LOWEMI);
+}
+
+static void __nmk_gpio_make_input(struct nmk_gpio_chip *nmk_chip,
+ unsigned offset)
+{
+ writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC);
+}
+
+static void __nmk_gpio_set_output(struct nmk_gpio_chip *nmk_chip,
+ unsigned offset, int val)
+{
+ if (val)
+ writel(1 << offset, nmk_chip->addr + NMK_GPIO_DATS);
+ else
+ writel(1 << offset, nmk_chip->addr + NMK_GPIO_DATC);
+}
+
+static void __nmk_gpio_make_output(struct nmk_gpio_chip *nmk_chip,
+ unsigned offset, int val)
+{
+ writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRS);
+ __nmk_gpio_set_output(nmk_chip, offset, val);
+}
+
+static void __nmk_gpio_set_mode_safe(struct nmk_gpio_chip *nmk_chip,
+ unsigned offset, int gpio_mode,
+ bool glitch)
+{
+ u32 rwimsc = nmk_chip->rwimsc;
+ u32 fwimsc = nmk_chip->fwimsc;
+
+ if (glitch && nmk_chip->set_ioforce) {
+ u32 bit = BIT(offset);
+
+ /* Prevent spurious wakeups */
+ writel(rwimsc & ~bit, nmk_chip->addr + NMK_GPIO_RWIMSC);
+ writel(fwimsc & ~bit, nmk_chip->addr + NMK_GPIO_FWIMSC);
+
+ nmk_chip->set_ioforce(true);
+ }
+
+ __nmk_gpio_set_mode(nmk_chip, offset, gpio_mode);
+
+ if (glitch && nmk_chip->set_ioforce) {
+ nmk_chip->set_ioforce(false);
+
+ writel(rwimsc, nmk_chip->addr + NMK_GPIO_RWIMSC);
+ writel(fwimsc, nmk_chip->addr + NMK_GPIO_FWIMSC);
+ }
+}
+
+static void
+nmk_gpio_disable_lazy_irq(struct nmk_gpio_chip *nmk_chip, unsigned offset)
+{
+ u32 falling = nmk_chip->fimsc & BIT(offset);
+ u32 rising = nmk_chip->rimsc & BIT(offset);
+ int gpio = nmk_chip->chip.base + offset;
+ int irq = NOMADIK_GPIO_TO_IRQ(gpio);
+ struct irq_data *d = irq_get_irq_data(irq);
+
+ if (!rising && !falling)
+ return;
+
+ if (!d || !irqd_irq_disabled(d))
+ return;
+
+ if (rising) {
+ nmk_chip->rimsc &= ~BIT(offset);
+ writel_relaxed(nmk_chip->rimsc,
+ nmk_chip->addr + NMK_GPIO_RIMSC);
+ }
+
+ if (falling) {
+ nmk_chip->fimsc &= ~BIT(offset);
+ writel_relaxed(nmk_chip->fimsc,
+ nmk_chip->addr + NMK_GPIO_FIMSC);
+ }
+
+ dev_dbg(nmk_chip->chip.dev, "%d: clearing interrupt mask\n", gpio);
+}
+
+static void __nmk_config_pin(struct nmk_gpio_chip *nmk_chip, unsigned offset,
+ pin_cfg_t cfg, bool sleep, unsigned int *slpmregs)
+{
+ static const char *afnames[] = {
+ [NMK_GPIO_ALT_GPIO] = "GPIO",
+ [NMK_GPIO_ALT_A] = "A",
+ [NMK_GPIO_ALT_B] = "B",
+ [NMK_GPIO_ALT_C] = "C"
+ };
+ static const char *pullnames[] = {
+ [NMK_GPIO_PULL_NONE] = "none",
+ [NMK_GPIO_PULL_UP] = "up",
+ [NMK_GPIO_PULL_DOWN] = "down",
+ [3] /* illegal */ = "??"
+ };
+ static const char *slpmnames[] = {
+ [NMK_GPIO_SLPM_INPUT] = "input/wakeup",
+ [NMK_GPIO_SLPM_NOCHANGE] = "no-change/no-wakeup",
+ };
+
+ int pin = PIN_NUM(cfg);
+ int pull = PIN_PULL(cfg);
+ int af = PIN_ALT(cfg);
+ int slpm = PIN_SLPM(cfg);
+ int output = PIN_DIR(cfg);
+ int val = PIN_VAL(cfg);
+ bool glitch = af == NMK_GPIO_ALT_C;
+
+ dev_dbg(nmk_chip->chip.dev, "pin %d [%#lx]: af %s, pull %s, slpm %s (%s%s)\n",
+ pin, cfg, afnames[af], pullnames[pull], slpmnames[slpm],
+ output ? "output " : "input",
+ output ? (val ? "high" : "low") : "");
+
+ if (sleep) {
+ int slpm_pull = PIN_SLPM_PULL(cfg);
+ int slpm_output = PIN_SLPM_DIR(cfg);
+ int slpm_val = PIN_SLPM_VAL(cfg);
+
+ af = NMK_GPIO_ALT_GPIO;
+
+ /*
+ * The SLPM_* values are normal values + 1 to allow zero to
+ * mean "same as normal".
+ */
+ if (slpm_pull)
+ pull = slpm_pull - 1;
+ if (slpm_output)
+ output = slpm_output - 1;
+ if (slpm_val)
+ val = slpm_val - 1;
+
+ dev_dbg(nmk_chip->chip.dev, "pin %d: sleep pull %s, dir %s, val %s\n",
+ pin,
+ slpm_pull ? pullnames[pull] : "same",
+ slpm_output ? (output ? "output" : "input") : "same",
+ slpm_val ? (val ? "high" : "low") : "same");
+ }
+
+ if (output)
+ __nmk_gpio_make_output(nmk_chip, offset, val);
+ else {
+ __nmk_gpio_make_input(nmk_chip, offset);
+ __nmk_gpio_set_pull(nmk_chip, offset, pull);
+ }
+
+ __nmk_gpio_set_lowemi(nmk_chip, offset, PIN_LOWEMI(cfg));
+
+ /*
+ * If the pin is switching to altfunc, and there was an interrupt
+ * installed on it which has been lazy disabled, actually mask the
+ * interrupt to prevent spurious interrupts that would occur while the
+ * pin is under control of the peripheral. Only SKE does this.
+ */
+ if (af != NMK_GPIO_ALT_GPIO)
+ nmk_gpio_disable_lazy_irq(nmk_chip, offset);
+
+ /*
+ * If we've backed up the SLPM registers (glitch workaround), modify
+ * the backups since they will be restored.
+ */
+ if (slpmregs) {
+ if (slpm == NMK_GPIO_SLPM_NOCHANGE)
+ slpmregs[nmk_chip->bank] |= BIT(offset);
+ else
+ slpmregs[nmk_chip->bank] &= ~BIT(offset);
+ } else
+ __nmk_gpio_set_slpm(nmk_chip, offset, slpm);
+
+ __nmk_gpio_set_mode_safe(nmk_chip, offset, af, glitch);
+}
+
+/*
+ * Safe sequence used to switch IOs between GPIO and Alternate-C mode:
+ * - Save SLPM registers
+ * - Set SLPM=0 for the IOs you want to switch and others to 1
+ * - Configure the GPIO registers for the IOs that are being switched
+ * - Set IOFORCE=1
+ * - Modify the AFLSA/B registers for the IOs that are being switched
+ * - Set IOFORCE=0
+ * - Restore SLPM registers
+ * - Any spurious wake up event during switch sequence to be ignored and
+ * cleared
+ */
+static void nmk_gpio_glitch_slpm_init(unsigned int *slpm)
+{
+ int i;
+
+ for (i = 0; i < NUM_BANKS; i++) {
+ struct nmk_gpio_chip *chip = nmk_gpio_chips[i];
+ unsigned int temp = slpm[i];
+
+ if (!chip)
+ break;
+
+ clk_enable(chip->clk);
+
+ slpm[i] = readl(chip->addr + NMK_GPIO_SLPC);
+ writel(temp, chip->addr + NMK_GPIO_SLPC);
+ }
+}
+
+static void nmk_gpio_glitch_slpm_restore(unsigned int *slpm)
+{
+ int i;
+
+ for (i = 0; i < NUM_BANKS; i++) {
+ struct nmk_gpio_chip *chip = nmk_gpio_chips[i];
+
+ if (!chip)
+ break;
+
+ writel(slpm[i], chip->addr + NMK_GPIO_SLPC);
+
+ clk_disable(chip->clk);
+ }
+}
+
+static int __nmk_config_pins(pin_cfg_t *cfgs, int num, bool sleep)
+{
+ static unsigned int slpm[NUM_BANKS];
+ unsigned long flags;
+ bool glitch = false;
+ int ret = 0;
+ int i;
+
+ for (i = 0; i < num; i++) {
+ if (PIN_ALT(cfgs[i]) == NMK_GPIO_ALT_C) {
+ glitch = true;
+ break;
+ }
+ }
+
+ spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
+
+ if (glitch) {
+ memset(slpm, 0xff, sizeof(slpm));
+
+ for (i = 0; i < num; i++) {
+ int pin = PIN_NUM(cfgs[i]);
+ int offset = pin % NMK_GPIO_PER_CHIP;
+
+ if (PIN_ALT(cfgs[i]) == NMK_GPIO_ALT_C)
+ slpm[pin / NMK_GPIO_PER_CHIP] &= ~BIT(offset);
+ }
+
+ nmk_gpio_glitch_slpm_init(slpm);
+ }
+
+ for (i = 0; i < num; i++) {
+ struct nmk_gpio_chip *nmk_chip;
+ int pin = PIN_NUM(cfgs[i]);
+
+ nmk_chip = nmk_gpio_chips[pin / NMK_GPIO_PER_CHIP];
+ if (!nmk_chip) {
+ ret = -EINVAL;
+ break;
+ }
+
+ clk_enable(nmk_chip->clk);
+ spin_lock(&nmk_chip->lock);
+ __nmk_config_pin(nmk_chip, pin % NMK_GPIO_PER_CHIP,
+ cfgs[i], sleep, glitch ? slpm : NULL);
+ spin_unlock(&nmk_chip->lock);
+ clk_disable(nmk_chip->clk);
+ }
+
+ if (glitch)
+ nmk_gpio_glitch_slpm_restore(slpm);
+
+ spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags);
+
+ return ret;
+}
+
+/**
+ * nmk_config_pin - configure a pin's mux attributes
+ * @cfg: pin confguration
+ *
+ * Configures a pin's mode (alternate function or GPIO), its pull up status,
+ * and its sleep mode based on the specified configuration. The @cfg is
+ * usually one of the SoC specific macros defined in mach/<soc>-pins.h. These
+ * are constructed using, and can be further enhanced with, the macros in
+ * plat/pincfg.h.
+ *
+ * If a pin's mode is set to GPIO, it is configured as an input to avoid
+ * side-effects. The gpio can be manipulated later using standard GPIO API
+ * calls.
+ */
+int nmk_config_pin(pin_cfg_t cfg, bool sleep)
+{
+ return __nmk_config_pins(&cfg, 1, sleep);
+}
+EXPORT_SYMBOL(nmk_config_pin);
+
+/**
+ * nmk_config_pins - configure several pins at once
+ * @cfgs: array of pin configurations
+ * @num: number of elments in the array
+ *
+ * Configures several pins using nmk_config_pin(). Refer to that function for
+ * further information.
+ */
+int nmk_config_pins(pin_cfg_t *cfgs, int num)
+{
+ return __nmk_config_pins(cfgs, num, false);
+}
+EXPORT_SYMBOL(nmk_config_pins);
+
+int nmk_config_pins_sleep(pin_cfg_t *cfgs, int num)
+{
+ return __nmk_config_pins(cfgs, num, true);
+}
+EXPORT_SYMBOL(nmk_config_pins_sleep);
+
+/**
+ * nmk_gpio_set_slpm() - configure the sleep mode of a pin
+ * @gpio: pin number
+ * @mode: NMK_GPIO_SLPM_INPUT or NMK_GPIO_SLPM_NOCHANGE,
+ *
+ * This register is actually in the pinmux layer, not the GPIO block itself.
+ * The GPIO1B_SLPM register defines the GPIO mode when SLEEP/DEEP-SLEEP
+ * mode is entered (i.e. when signal IOFORCE is HIGH by the platform code).
+ * Each GPIO can be configured to be forced into GPIO mode when IOFORCE is
+ * HIGH, overriding the normal setting defined by GPIO_AFSELx registers.
+ * When IOFORCE returns LOW (by software, after SLEEP/DEEP-SLEEP exit),
+ * the GPIOs return to the normal setting defined by GPIO_AFSELx registers.
+ *
+ * If @mode is NMK_GPIO_SLPM_INPUT, the corresponding GPIO is switched to GPIO
+ * mode when signal IOFORCE is HIGH (i.e. when SLEEP/DEEP-SLEEP mode is
+ * entered) regardless of the altfunction selected. Also wake-up detection is
+ * ENABLED.
+ *
+ * If @mode is NMK_GPIO_SLPM_NOCHANGE, the corresponding GPIO remains
+ * controlled by NMK_GPIO_DATC, NMK_GPIO_DATS, NMK_GPIO_DIR, NMK_GPIO_PDIS
+ * (for altfunction GPIO) or respective on-chip peripherals (for other
+ * altfuncs) when IOFORCE is HIGH. Also wake-up detection DISABLED.
+ *
+ * Note that enable_irq_wake() will automatically enable wakeup detection.
+ */
+int nmk_gpio_set_slpm(int gpio, enum nmk_gpio_slpm mode)
+{
+ struct nmk_gpio_chip *nmk_chip;
+ unsigned long flags;
+
+ nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP];
+ if (!nmk_chip)
+ return -EINVAL;
+
+ clk_enable(nmk_chip->clk);
+ spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
+ spin_lock(&nmk_chip->lock);
+
+ __nmk_gpio_set_slpm(nmk_chip, gpio % NMK_GPIO_PER_CHIP, mode);
+
+ spin_unlock(&nmk_chip->lock);
+ spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags);
+ clk_disable(nmk_chip->clk);
+
+ return 0;
+}
+
+/**
+ * nmk_gpio_set_pull() - enable/disable pull up/down on a gpio
+ * @gpio: pin number
+ * @pull: one of NMK_GPIO_PULL_DOWN, NMK_GPIO_PULL_UP, and NMK_GPIO_PULL_NONE
+ *
+ * Enables/disables pull up/down on a specified pin. This only takes effect if
+ * the pin is configured as an input (either explicitly or by the alternate
+ * function).
+ *
+ * NOTE: If enabling the pull up/down, the caller must ensure that the GPIO is
+ * configured as an input. Otherwise, due to the way the controller registers
+ * work, this function will change the value output on the pin.
+ */
+int nmk_gpio_set_pull(int gpio, enum nmk_gpio_pull pull)
+{
+ struct nmk_gpio_chip *nmk_chip;
+ unsigned long flags;
+
+ nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP];
+ if (!nmk_chip)
+ return -EINVAL;
+
+ clk_enable(nmk_chip->clk);
+ spin_lock_irqsave(&nmk_chip->lock, flags);
+ __nmk_gpio_set_pull(nmk_chip, gpio % NMK_GPIO_PER_CHIP, pull);
+ spin_unlock_irqrestore(&nmk_chip->lock, flags);
+ clk_disable(nmk_chip->clk);
+
+ return 0;
+}
+
+/* Mode functions */
+/**
+ * nmk_gpio_set_mode() - set the mux mode of a gpio pin
+ * @gpio: pin number
+ * @gpio_mode: one of NMK_GPIO_ALT_GPIO, NMK_GPIO_ALT_A,
+ * NMK_GPIO_ALT_B, and NMK_GPIO_ALT_C
+ *
+ * Sets the mode of the specified pin to one of the alternate functions or
+ * plain GPIO.
+ */
+int nmk_gpio_set_mode(int gpio, int gpio_mode)
+{
+ struct nmk_gpio_chip *nmk_chip;
+ unsigned long flags;
+
+ nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP];
+ if (!nmk_chip)
+ return -EINVAL;
+
+ clk_enable(nmk_chip->clk);
+ spin_lock_irqsave(&nmk_chip->lock, flags);
+ __nmk_gpio_set_mode(nmk_chip, gpio % NMK_GPIO_PER_CHIP, gpio_mode);
+ spin_unlock_irqrestore(&nmk_chip->lock, flags);
+ clk_disable(nmk_chip->clk);
+
+ return 0;
+}
+EXPORT_SYMBOL(nmk_gpio_set_mode);
+
+int nmk_gpio_get_mode(int gpio)
+{
+ struct nmk_gpio_chip *nmk_chip;
+ u32 afunc, bfunc, bit;
+
+ nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP];
+ if (!nmk_chip)
+ return -EINVAL;
+
+ bit = 1 << (gpio % NMK_GPIO_PER_CHIP);
+
+ clk_enable(nmk_chip->clk);
+
+ afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & bit;
+ bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & bit;
+
+ clk_disable(nmk_chip->clk);
+
+ return (afunc ? NMK_GPIO_ALT_A : 0) | (bfunc ? NMK_GPIO_ALT_B : 0);
+}
+EXPORT_SYMBOL(nmk_gpio_get_mode);
+
+
+/* IRQ functions */
+static inline int nmk_gpio_get_bitmask(int gpio)
+{
+ return 1 << (gpio % NMK_GPIO_PER_CHIP);
+}
+
+static void nmk_gpio_irq_ack(struct irq_data *d)
+{
+ struct nmk_gpio_chip *nmk_chip;
+
+ nmk_chip = irq_data_get_irq_chip_data(d);
+ if (!nmk_chip)
+ return;
+
+ clk_enable(nmk_chip->clk);
+ writel(nmk_gpio_get_bitmask(d->hwirq), nmk_chip->addr + NMK_GPIO_IC);
+ clk_disable(nmk_chip->clk);
+}
+
+enum nmk_gpio_irq_type {
+ NORMAL,
+ WAKE,
+};
+
+static void __nmk_gpio_irq_modify(struct nmk_gpio_chip *nmk_chip,
+ int gpio, enum nmk_gpio_irq_type which,
+ bool enable)
+{
+ u32 bitmask = nmk_gpio_get_bitmask(gpio);
+ u32 *rimscval;
+ u32 *fimscval;
+ u32 rimscreg;
+ u32 fimscreg;
+
+ if (which == NORMAL) {
+ rimscreg = NMK_GPIO_RIMSC;
+ fimscreg = NMK_GPIO_FIMSC;
+ rimscval = &nmk_chip->rimsc;
+ fimscval = &nmk_chip->fimsc;
+ } else {
+ rimscreg = NMK_GPIO_RWIMSC;
+ fimscreg = NMK_GPIO_FWIMSC;
+ rimscval = &nmk_chip->rwimsc;
+ fimscval = &nmk_chip->fwimsc;
+ }
+
+ /* we must individually set/clear the two edges */
+ if (nmk_chip->edge_rising & bitmask) {
+ if (enable)
+ *rimscval |= bitmask;
+ else
+ *rimscval &= ~bitmask;
+ writel(*rimscval, nmk_chip->addr + rimscreg);
+ }
+ if (nmk_chip->edge_falling & bitmask) {
+ if (enable)
+ *fimscval |= bitmask;
+ else
+ *fimscval &= ~bitmask;
+ writel(*fimscval, nmk_chip->addr + fimscreg);
+ }
+}
+
+static void __nmk_gpio_set_wake(struct nmk_gpio_chip *nmk_chip,
+ int gpio, bool on)
+{
+ /*
+ * Ensure WAKEUP_ENABLE is on. No need to disable it if wakeup is
+ * disabled, since setting SLPM to 1 increases power consumption, and
+ * wakeup is anyhow controlled by the RIMSC and FIMSC registers.
+ */
+ if (nmk_chip->sleepmode && on) {
+ __nmk_gpio_set_slpm(nmk_chip, gpio % nmk_chip->chip.base,
+ NMK_GPIO_SLPM_WAKEUP_ENABLE);
+ }
+
+ __nmk_gpio_irq_modify(nmk_chip, gpio, WAKE, on);
+}
+
+static int nmk_gpio_irq_maskunmask(struct irq_data *d, bool enable)
+{
+ struct nmk_gpio_chip *nmk_chip;
+ unsigned long flags;
+ u32 bitmask;
+
+ nmk_chip = irq_data_get_irq_chip_data(d);
+ bitmask = nmk_gpio_get_bitmask(d->hwirq);
+ if (!nmk_chip)
+ return -EINVAL;
+
+ clk_enable(nmk_chip->clk);
+ spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
+ spin_lock(&nmk_chip->lock);
+
+ __nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, enable);
+
+ if (!(nmk_chip->real_wake & bitmask))
+ __nmk_gpio_set_wake(nmk_chip, d->hwirq, enable);
+
+ spin_unlock(&nmk_chip->lock);
+ spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags);
+ clk_disable(nmk_chip->clk);
+
+ return 0;
+}
+
+static void nmk_gpio_irq_mask(struct irq_data *d)
+{
+ nmk_gpio_irq_maskunmask(d, false);
+}
+
+static void nmk_gpio_irq_unmask(struct irq_data *d)
+{
+ nmk_gpio_irq_maskunmask(d, true);
+}
+
+static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
+{
+ struct nmk_gpio_chip *nmk_chip;
+ unsigned long flags;
+ u32 bitmask;
+
+ nmk_chip = irq_data_get_irq_chip_data(d);
+ if (!nmk_chip)
+ return -EINVAL;
+ bitmask = nmk_gpio_get_bitmask(d->hwirq);
+
+ clk_enable(nmk_chip->clk);
+ spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
+ spin_lock(&nmk_chip->lock);
+
+ if (irqd_irq_disabled(d))
+ __nmk_gpio_set_wake(nmk_chip, d->hwirq, on);
+
+ if (on)
+ nmk_chip->real_wake |= bitmask;
+ else
+ nmk_chip->real_wake &= ~bitmask;
+
+ spin_unlock(&nmk_chip->lock);
+ spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags);
+ clk_disable(nmk_chip->clk);
+
+ return 0;
+}
+
+static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type)
+{
+ bool enabled = !irqd_irq_disabled(d);
+ bool wake = irqd_is_wakeup_set(d);
+ struct nmk_gpio_chip *nmk_chip;
+ unsigned long flags;
+ u32 bitmask;
+
+ nmk_chip = irq_data_get_irq_chip_data(d);
+ bitmask = nmk_gpio_get_bitmask(d->hwirq);
+ if (!nmk_chip)
+ return -EINVAL;
+ if (type & IRQ_TYPE_LEVEL_HIGH)
+ return -EINVAL;
+ if (type & IRQ_TYPE_LEVEL_LOW)
+ return -EINVAL;
+
+ clk_enable(nmk_chip->clk);
+ spin_lock_irqsave(&nmk_chip->lock, flags);
+
+ if (enabled)
+ __nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, false);
+
+ if (enabled || wake)
+ __nmk_gpio_irq_modify(nmk_chip, d->hwirq, WAKE, false);
+
+ nmk_chip->edge_rising &= ~bitmask;
+ if (type & IRQ_TYPE_EDGE_RISING)
+ nmk_chip->edge_rising |= bitmask;
+
+ nmk_chip->edge_falling &= ~bitmask;
+ if (type & IRQ_TYPE_EDGE_FALLING)
+ nmk_chip->edge_falling |= bitmask;
+
+ if (enabled)
+ __nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, true);
+
+ if (enabled || wake)
+ __nmk_gpio_irq_modify(nmk_chip, d->hwirq, WAKE, true);
+
+ spin_unlock_irqrestore(&nmk_chip->lock, flags);
+ clk_disable(nmk_chip->clk);
+
+ return 0;
+}
+
+static unsigned int nmk_gpio_irq_startup(struct irq_data *d)
+{
+ struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d);
+
+ clk_enable(nmk_chip->clk);
+ nmk_gpio_irq_unmask(d);
+ return 0;
+}
+
+static void nmk_gpio_irq_shutdown(struct irq_data *d)
+{
+ struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d);
+
+ nmk_gpio_irq_mask(d);
+ clk_disable(nmk_chip->clk);
+}
+
+static struct irq_chip nmk_gpio_irq_chip = {
+ .name = "Nomadik-GPIO",
+ .irq_ack = nmk_gpio_irq_ack,
+ .irq_mask = nmk_gpio_irq_mask,
+ .irq_unmask = nmk_gpio_irq_unmask,
+ .irq_set_type = nmk_gpio_irq_set_type,
+ .irq_set_wake = nmk_gpio_irq_set_wake,
+ .irq_startup = nmk_gpio_irq_startup,
+ .irq_shutdown = nmk_gpio_irq_shutdown,
+};
+
+static void __nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc,
+ u32 status)
+{
+ struct nmk_gpio_chip *nmk_chip;
+ struct irq_chip *host_chip = irq_get_chip(irq);
+ unsigned int first_irq;
+
+ chained_irq_enter(host_chip, desc);
+
+ nmk_chip = irq_get_handler_data(irq);
+ first_irq = nmk_chip->domain->revmap_data.legacy.first_irq;
+ while (status) {
+ int bit = __ffs(status);
+
+ generic_handle_irq(first_irq + bit);
+ status &= ~BIT(bit);
+ }
+
+ chained_irq_exit(host_chip, desc);
+}
+
+static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+ struct nmk_gpio_chip *nmk_chip = irq_get_handler_data(irq);
+ u32 status;
+
+ clk_enable(nmk_chip->clk);
+ status = readl(nmk_chip->addr + NMK_GPIO_IS);
+ clk_disable(nmk_chip->clk);
+
+ __nmk_gpio_irq_handler(irq, desc, status);
+}
+
+static void nmk_gpio_secondary_irq_handler(unsigned int irq,
+ struct irq_desc *desc)
+{
+ struct nmk_gpio_chip *nmk_chip = irq_get_handler_data(irq);
+ u32 status = nmk_chip->get_secondary_status(nmk_chip->bank);
+
+ __nmk_gpio_irq_handler(irq, desc, status);
+}
+
+static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip)
+{
+ irq_set_chained_handler(nmk_chip->parent_irq, nmk_gpio_irq_handler);
+ irq_set_handler_data(nmk_chip->parent_irq, nmk_chip);
+
+ if (nmk_chip->secondary_parent_irq >= 0) {
+ irq_set_chained_handler(nmk_chip->secondary_parent_irq,
+ nmk_gpio_secondary_irq_handler);
+ irq_set_handler_data(nmk_chip->secondary_parent_irq, nmk_chip);
+ }
+
+ return 0;
+}
+
+/* I/O Functions */
+
+static int nmk_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ /*
+ * Map back to global GPIO space and request muxing, the direction
+ * parameter does not matter for this controller.
+ */
+ int gpio = chip->base + offset;
+
+ return pinctrl_request_gpio(gpio);
+}
+
+static void nmk_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+ int gpio = chip->base + offset;
+
+ pinctrl_free_gpio(gpio);
+}
+
+static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset)
+{
+ struct nmk_gpio_chip *nmk_chip =
+ container_of(chip, struct nmk_gpio_chip, chip);
+
+ clk_enable(nmk_chip->clk);
+
+ writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC);
+
+ clk_disable(nmk_chip->clk);
+
+ return 0;
+}
+
+static int nmk_gpio_get_input(struct gpio_chip *chip, unsigned offset)
+{
+ struct nmk_gpio_chip *nmk_chip =
+ container_of(chip, struct nmk_gpio_chip, chip);
+ u32 bit = 1 << offset;
+ int value;
+
+ clk_enable(nmk_chip->clk);
+
+ value = (readl(nmk_chip->addr + NMK_GPIO_DAT) & bit) != 0;
+
+ clk_disable(nmk_chip->clk);
+
+ return value;
+}
+
+static void nmk_gpio_set_output(struct gpio_chip *chip, unsigned offset,
+ int val)
+{
+ struct nmk_gpio_chip *nmk_chip =
+ container_of(chip, struct nmk_gpio_chip, chip);
+
+ clk_enable(nmk_chip->clk);
+
+ __nmk_gpio_set_output(nmk_chip, offset, val);
+
+ clk_disable(nmk_chip->clk);
+}
+
+static int nmk_gpio_make_output(struct gpio_chip *chip, unsigned offset,
+ int val)
+{
+ struct nmk_gpio_chip *nmk_chip =
+ container_of(chip, struct nmk_gpio_chip, chip);
+
+ clk_enable(nmk_chip->clk);
+
+ __nmk_gpio_make_output(nmk_chip, offset, val);
+
+ clk_disable(nmk_chip->clk);
+
+ return 0;
+}
+
+static int nmk_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ struct nmk_gpio_chip *nmk_chip =
+ container_of(chip, struct nmk_gpio_chip, chip);
+
+ return irq_find_mapping(nmk_chip->domain, offset);
+}
+
+#ifdef CONFIG_DEBUG_FS
+
+#include <linux/seq_file.h>
+
+static void nmk_gpio_dbg_show_one(struct seq_file *s, struct gpio_chip *chip,
+ unsigned offset, unsigned gpio)
+{
+ const char *label = gpiochip_is_requested(chip, offset);
+ struct nmk_gpio_chip *nmk_chip =
+ container_of(chip, struct nmk_gpio_chip, chip);
+ int mode;
+ bool is_out;
+ bool pull;
+ u32 bit = 1 << offset;
+ const char *modes[] = {
+ [NMK_GPIO_ALT_GPIO] = "gpio",
+ [NMK_GPIO_ALT_A] = "altA",
+ [NMK_GPIO_ALT_B] = "altB",
+ [NMK_GPIO_ALT_C] = "altC",
+ };
+
+ clk_enable(nmk_chip->clk);
+ is_out = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & bit);
+ pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit);
+ mode = nmk_gpio_get_mode(gpio);
+
+ seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s",
+ gpio, label ?: "(none)",
+ is_out ? "out" : "in ",
+ chip->get
+ ? (chip->get(chip, offset) ? "hi" : "lo")
+ : "? ",
+ (mode < 0) ? "unknown" : modes[mode],
+ pull ? "pull" : "none");
+
+ if (label && !is_out) {
+ int irq = gpio_to_irq(gpio);
+ struct irq_desc *desc = irq_to_desc(irq);
+
+ /* This races with request_irq(), set_irq_type(),
+ * and set_irq_wake() ... but those are "rare".
+ */
+ if (irq >= 0 && desc->action) {
+ char *trigger;
+ u32 bitmask = nmk_gpio_get_bitmask(gpio);
+
+ if (nmk_chip->edge_rising & bitmask)
+ trigger = "edge-rising";
+ else if (nmk_chip->edge_falling & bitmask)
+ trigger = "edge-falling";
+ else
+ trigger = "edge-undefined";
+
+ seq_printf(s, " irq-%d %s%s",
+ irq, trigger,
+ irqd_is_wakeup_set(&desc->irq_data)
+ ? " wakeup" : "");
+ }
+ }
+ clk_disable(nmk_chip->clk);
+}
+
+static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
+{
+ unsigned i;
+ unsigned gpio = chip->base;
+
+ for (i = 0; i < chip->ngpio; i++, gpio++) {
+ nmk_gpio_dbg_show_one(s, chip, i, gpio);
+ seq_printf(s, "\n");
+ }
+}
+
+#else
+static inline void nmk_gpio_dbg_show_one(struct seq_file *s,
+ struct gpio_chip *chip,
+ unsigned offset, unsigned gpio)
+{
+}
+#define nmk_gpio_dbg_show NULL
+#endif
+
+/* This structure is replicated for each GPIO block allocated at probe time */
+static struct gpio_chip nmk_gpio_template = {
+ .request = nmk_gpio_request,
+ .free = nmk_gpio_free,
+ .direction_input = nmk_gpio_make_input,
+ .get = nmk_gpio_get_input,
+ .direction_output = nmk_gpio_make_output,
+ .set = nmk_gpio_set_output,
+ .to_irq = nmk_gpio_to_irq,
+ .dbg_show = nmk_gpio_dbg_show,
+ .can_sleep = 0,
+};
+
+void nmk_gpio_clocks_enable(void)
+{
+ int i;
+
+ for (i = 0; i < NUM_BANKS; i++) {
+ struct nmk_gpio_chip *chip = nmk_gpio_chips[i];
+
+ if (!chip)
+ continue;
+
+ clk_enable(chip->clk);
+ }
+}
+
+void nmk_gpio_clocks_disable(void)
+{
+ int i;
+
+ for (i = 0; i < NUM_BANKS; i++) {
+ struct nmk_gpio_chip *chip = nmk_gpio_chips[i];
+
+ if (!chip)
+ continue;
+
+ clk_disable(chip->clk);
+ }
+}
+
+/*
+ * Called from the suspend/resume path to only keep the real wakeup interrupts
+ * (those that have had set_irq_wake() called on them) as wakeup interrupts,
+ * and not the rest of the interrupts which we needed to have as wakeups for
+ * cpuidle.
+ *
+ * PM ops are not used since this needs to be done at the end, after all the
+ * other drivers are done with their suspend callbacks.
+ */
+void nmk_gpio_wakeups_suspend(void)
+{
+ int i;
+
+ for (i = 0; i < NUM_BANKS; i++) {
+ struct nmk_gpio_chip *chip = nmk_gpio_chips[i];
+
+ if (!chip)
+ break;
+
+ clk_enable(chip->clk);
+
+ writel(chip->rwimsc & chip->real_wake,
+ chip->addr + NMK_GPIO_RWIMSC);
+ writel(chip->fwimsc & chip->real_wake,
+ chip->addr + NMK_GPIO_FWIMSC);
+
+ clk_disable(chip->clk);
+ }
+}
+
+void nmk_gpio_wakeups_resume(void)
+{
+ int i;
+
+ for (i = 0; i < NUM_BANKS; i++) {
+ struct nmk_gpio_chip *chip = nmk_gpio_chips[i];
+
+ if (!chip)
+ break;
+
+ clk_enable(chip->clk);
+
+ writel(chip->rwimsc, chip->addr + NMK_GPIO_RWIMSC);
+ writel(chip->fwimsc, chip->addr + NMK_GPIO_FWIMSC);
+
+ clk_disable(chip->clk);
+ }
+}
+
+/*
+ * Read the pull up/pull down status.
+ * A bit set in 'pull_up' means that pull up
+ * is selected if pull is enabled in PDIS register.
+ * Note: only pull up/down set via this driver can
+ * be detected due to HW limitations.
+ */
+void nmk_gpio_read_pull(int gpio_bank, u32 *pull_up)
+{
+ if (gpio_bank < NUM_BANKS) {
+ struct nmk_gpio_chip *chip = nmk_gpio_chips[gpio_bank];
+
+ if (!chip)
+ return;
+
+ *pull_up = chip->pull_up;
+ }
+}
+
+int nmk_gpio_irq_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hwirq)
+{
+ struct nmk_gpio_chip *nmk_chip = d->host_data;
+
+ if (!nmk_chip)
+ return -EINVAL;
+
+ irq_set_chip_and_handler(irq, &nmk_gpio_irq_chip, handle_edge_irq);
+ set_irq_flags(irq, IRQF_VALID);
+ irq_set_chip_data(irq, nmk_chip);
+ irq_set_irq_type(irq, IRQ_TYPE_EDGE_FALLING);
+
+ return 0;
+}
+
+const struct irq_domain_ops nmk_gpio_irq_simple_ops = {
+ .map = nmk_gpio_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+static int __devinit nmk_gpio_probe(struct platform_device *dev)
+{
+ struct nmk_gpio_platform_data *pdata = dev->dev.platform_data;
+ struct device_node *np = dev->dev.of_node;
+ struct nmk_gpio_chip *nmk_chip;
+ struct gpio_chip *chip;
+ struct resource *res;
+ struct clk *clk;
+ int secondary_irq;
+ void __iomem *base;
+ int irq;
+ int ret;
+
+ if (!pdata && !np) {
+ dev_err(&dev->dev, "No platform data or device tree found\n");
+ return -ENODEV;
+ }
+
+ if (np) {
+ pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ if (of_get_property(np, "supports-sleepmode", NULL))
+ pdata->supports_sleepmode = true;
+
+ if (of_property_read_u32(np, "gpio-bank", &dev->id)) {
+ dev_err(&dev->dev, "gpio-bank property not found\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ pdata->first_gpio = dev->id * NMK_GPIO_PER_CHIP;
+ pdata->num_gpio = NMK_GPIO_PER_CHIP;
+ }
+
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (!res) {
+ ret = -ENOENT;
+ goto out;
+ }
+
+ irq = platform_get_irq(dev, 0);
+ if (irq < 0) {
+ ret = irq;
+ goto out;
+ }
+
+ secondary_irq = platform_get_irq(dev, 1);
+ if (secondary_irq >= 0 && !pdata->get_secondary_status) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (request_mem_region(res->start, resource_size(res),
+ dev_name(&dev->dev)) == NULL) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ base = ioremap(res->start, resource_size(res));
+ if (!base) {
+ ret = -ENOMEM;
+ goto out_release;
+ }
+
+ clk = clk_get(&dev->dev, NULL);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ goto out_unmap;
+ }
+
+ nmk_chip = kzalloc(sizeof(*nmk_chip), GFP_KERNEL);
+ if (!nmk_chip) {
+ ret = -ENOMEM;
+ goto out_clk;
+ }
+
+ /*
+ * The virt address in nmk_chip->addr is in the nomadik register space,
+ * so we can simply convert the resource address, without remapping
+ */
+ nmk_chip->bank = dev->id;
+ nmk_chip->clk = clk;
+ nmk_chip->addr = base;
+ nmk_chip->chip = nmk_gpio_template;
+ nmk_chip->parent_irq = irq;
+ nmk_chip->secondary_parent_irq = secondary_irq;
+ nmk_chip->get_secondary_status = pdata->get_secondary_status;
+ nmk_chip->set_ioforce = pdata->set_ioforce;
+ nmk_chip->sleepmode = pdata->supports_sleepmode;
+ spin_lock_init(&nmk_chip->lock);
+
+ chip = &nmk_chip->chip;
+ chip->base = pdata->first_gpio;
+ chip->ngpio = pdata->num_gpio;
+ chip->label = pdata->name ?: dev_name(&dev->dev);
+ chip->dev = &dev->dev;
+ chip->owner = THIS_MODULE;
+
+ clk_enable(nmk_chip->clk);
+ nmk_chip->lowemi = readl_relaxed(nmk_chip->addr + NMK_GPIO_LOWEMI);
+ clk_disable(nmk_chip->clk);
+
+#ifdef CONFIG_OF_GPIO
+ chip->of_node = np;
+#endif
+
+ ret = gpiochip_add(&nmk_chip->chip);
+ if (ret)
+ goto out_free;
+
+ BUG_ON(nmk_chip->bank >= ARRAY_SIZE(nmk_gpio_chips));
+
+ nmk_gpio_chips[nmk_chip->bank] = nmk_chip;
+
+ platform_set_drvdata(dev, nmk_chip);
+
+ nmk_chip->domain = irq_domain_add_legacy(np, NMK_GPIO_PER_CHIP,
+ NOMADIK_GPIO_TO_IRQ(pdata->first_gpio),
+ 0, &nmk_gpio_irq_simple_ops, nmk_chip);
+ if (!nmk_chip->domain) {
+ pr_err("%s: Failed to create irqdomain\n", np->full_name);
+ ret = -ENOSYS;
+ goto out_free;
+ }
+
+ nmk_gpio_init_irq(nmk_chip);
+
+ dev_info(&dev->dev, "at address %p\n", nmk_chip->addr);
+
+ return 0;
+
+out_free:
+ kfree(nmk_chip);
+out_clk:
+ clk_disable(clk);
+ clk_put(clk);
+out_unmap:
+ iounmap(base);
+out_release:
+ release_mem_region(res->start, resource_size(res));
+out:
+ dev_err(&dev->dev, "Failure %i for GPIO %i-%i\n", ret,
+ pdata->first_gpio, pdata->first_gpio+31);
+ if (np)
+ kfree(pdata);
+
+ return ret;
+}
+
+static int nmk_get_groups_cnt(struct pinctrl_dev *pctldev)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+
+ return npct->soc->ngroups;
+}
+
+static const char *nmk_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+
+ return npct->soc->groups[selector].name;
+}
+
+static int nmk_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
+ const unsigned **pins,
+ unsigned *num_pins)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+
+ *pins = npct->soc->groups[selector].pins;
+ *num_pins = npct->soc->groups[selector].npins;
+ return 0;
+}
+
+static struct pinctrl_gpio_range *
+nmk_match_gpio_range(struct pinctrl_dev *pctldev, unsigned offset)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+ int i;
+
+ for (i = 0; i < npct->soc->gpio_num_ranges; i++) {
+ struct pinctrl_gpio_range *range;
+
+ range = &npct->soc->gpio_ranges[i];
+ if (offset >= range->pin_base &&
+ offset <= (range->pin_base + range->npins - 1))
+ return range;
+ }
+ return NULL;
+}
+
+static void nmk_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
+ unsigned offset)
+{
+ struct pinctrl_gpio_range *range;
+ struct gpio_chip *chip;
+
+ range = nmk_match_gpio_range(pctldev, offset);
+ if (!range || !range->gc) {
+ seq_printf(s, "invalid pin offset");
+ return;
+ }
+ chip = range->gc;
+ nmk_gpio_dbg_show_one(s, chip, offset - chip->base, offset);
+}
+
+static struct pinctrl_ops nmk_pinctrl_ops = {
+ .get_groups_count = nmk_get_groups_cnt,
+ .get_group_name = nmk_get_group_name,
+ .get_group_pins = nmk_get_group_pins,
+ .pin_dbg_show = nmk_pin_dbg_show,
+};
+
+static int nmk_pmx_get_funcs_cnt(struct pinctrl_dev *pctldev)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+
+ return npct->soc->nfunctions;
+}
+
+static const char *nmk_pmx_get_func_name(struct pinctrl_dev *pctldev,
+ unsigned function)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+
+ return npct->soc->functions[function].name;
+}
+
+static int nmk_pmx_get_func_groups(struct pinctrl_dev *pctldev,
+ unsigned function,
+ const char * const **groups,
+ unsigned * const num_groups)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+
+ *groups = npct->soc->functions[function].groups;
+ *num_groups = npct->soc->functions[function].ngroups;
+
+ return 0;
+}
+
+static int nmk_pmx_enable(struct pinctrl_dev *pctldev, unsigned function,
+ unsigned group)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+ const struct nmk_pingroup *g;
+ static unsigned int slpm[NUM_BANKS];
+ unsigned long flags;
+ bool glitch;
+ int ret = -EINVAL;
+ int i;
+
+ g = &npct->soc->groups[group];
+
+ if (g->altsetting < 0)
+ return -EINVAL;
+
+ dev_dbg(npct->dev, "enable group %s, %u pins\n", g->name, g->npins);
+
+ /* Handle this special glitch on altfunction C */
+ glitch = (g->altsetting == NMK_GPIO_ALT_C);
+
+ if (glitch) {
+ spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
+
+ /* Initially don't put any pins to sleep when switching */
+ memset(slpm, 0xff, sizeof(slpm));
+
+ /*
+ * Then mask the pins that need to be sleeping now when we're
+ * switching to the ALT C function.
+ */
+ for (i = 0; i < g->npins; i++)
+ slpm[g->pins[i] / NMK_GPIO_PER_CHIP] &= ~BIT(g->pins[i]);
+ nmk_gpio_glitch_slpm_init(slpm);
+ }
+
+ for (i = 0; i < g->npins; i++) {
+ struct pinctrl_gpio_range *range;
+ struct nmk_gpio_chip *nmk_chip;
+ struct gpio_chip *chip;
+ unsigned bit;
+
+ range = nmk_match_gpio_range(pctldev, g->pins[i]);
+ if (!range) {
+ dev_err(npct->dev,
+ "invalid pin offset %d in group %s at index %d\n",
+ g->pins[i], g->name, i);
+ goto out_glitch;
+ }
+ if (!range->gc) {
+ dev_err(npct->dev, "GPIO chip missing in range for pin offset %d in group %s at index %d\n",
+ g->pins[i], g->name, i);
+ goto out_glitch;
+ }
+ chip = range->gc;
+ nmk_chip = container_of(chip, struct nmk_gpio_chip, chip);
+ dev_dbg(npct->dev, "setting pin %d to altsetting %d\n", g->pins[i], g->altsetting);
+
+ clk_enable(nmk_chip->clk);
+ bit = g->pins[i] % NMK_GPIO_PER_CHIP;
+ /*
+ * If the pin is switching to altfunc, and there was an
+ * interrupt installed on it which has been lazy disabled,
+ * actually mask the interrupt to prevent spurious interrupts
+ * that would occur while the pin is under control of the
+ * peripheral. Only SKE does this.
+ */
+ nmk_gpio_disable_lazy_irq(nmk_chip, bit);
+
+ __nmk_gpio_set_mode_safe(nmk_chip, bit, g->altsetting, glitch);
+ clk_disable(nmk_chip->clk);
+ }
+
+ /* When all pins are successfully reconfigured we get here */
+ ret = 0;
+
+out_glitch:
+ if (glitch) {
+ nmk_gpio_glitch_slpm_restore(slpm);
+ spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags);
+ }
+
+ return ret;
+}
+
+static void nmk_pmx_disable(struct pinctrl_dev *pctldev,
+ unsigned function, unsigned group)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+ const struct nmk_pingroup *g;
+
+ g = &npct->soc->groups[group];
+
+ if (g->altsetting < 0)
+ return;
+
+ /* Poke out the mux, set the pin to some default state? */
+ dev_dbg(npct->dev, "disable group %s, %u pins\n", g->name, g->npins);
+}
+
+int nmk_gpio_request_enable(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned offset)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+ struct nmk_gpio_chip *nmk_chip;
+ struct gpio_chip *chip;
+ unsigned bit;
+
+ if (!range) {
+ dev_err(npct->dev, "invalid range\n");
+ return -EINVAL;
+ }
+ if (!range->gc) {
+ dev_err(npct->dev, "missing GPIO chip in range\n");
+ return -EINVAL;
+ }
+ chip = range->gc;
+ nmk_chip = container_of(chip, struct nmk_gpio_chip, chip);
+
+ dev_dbg(npct->dev, "enable pin %u as GPIO\n", offset);
+
+ clk_enable(nmk_chip->clk);
+ bit = offset % NMK_GPIO_PER_CHIP;
+ /* There is no glitch when converting any pin to GPIO */
+ __nmk_gpio_set_mode(nmk_chip, bit, NMK_GPIO_ALT_GPIO);
+ clk_disable(nmk_chip->clk);
+
+ return 0;
+}
+
+void nmk_gpio_disable_free(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned offset)
+{
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+
+ dev_dbg(npct->dev, "disable pin %u as GPIO\n", offset);
+ /* Set the pin to some default state, GPIO is usually default */
+}
+
+static struct pinmux_ops nmk_pinmux_ops = {
+ .get_functions_count = nmk_pmx_get_funcs_cnt,
+ .get_function_name = nmk_pmx_get_func_name,
+ .get_function_groups = nmk_pmx_get_func_groups,
+ .enable = nmk_pmx_enable,
+ .disable = nmk_pmx_disable,
+ .gpio_request_enable = nmk_gpio_request_enable,
+ .gpio_disable_free = nmk_gpio_disable_free,
+};
+
+int nmk_pin_config_get(struct pinctrl_dev *pctldev,
+ unsigned pin,
+ unsigned long *config)
+{
+ /* Not implemented */
+ return -EINVAL;
+}
+
+int nmk_pin_config_set(struct pinctrl_dev *pctldev,
+ unsigned pin,
+ unsigned long config)
+{
+ static const char *pullnames[] = {
+ [NMK_GPIO_PULL_NONE] = "none",
+ [NMK_GPIO_PULL_UP] = "up",
+ [NMK_GPIO_PULL_DOWN] = "down",
+ [3] /* illegal */ = "??"
+ };
+ static const char *slpmnames[] = {
+ [NMK_GPIO_SLPM_INPUT] = "input/wakeup",
+ [NMK_GPIO_SLPM_NOCHANGE] = "no-change/no-wakeup",
+ };
+ struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+ struct nmk_gpio_chip *nmk_chip;
+ struct pinctrl_gpio_range *range;
+ struct gpio_chip *chip;
+ unsigned bit;
+
+ /*
+ * The pin config contains pin number and altfunction fields, here
+ * we just ignore that part. It's being handled by the framework and
+ * pinmux callback respectively.
+ */
+ pin_cfg_t cfg = (pin_cfg_t) config;
+ int pull = PIN_PULL(cfg);
+ int slpm = PIN_SLPM(cfg);
+ int output = PIN_DIR(cfg);
+ int val = PIN_VAL(cfg);
+ bool lowemi = PIN_LOWEMI(cfg);
+ bool gpiomode = PIN_GPIOMODE(cfg);
+ bool sleep = PIN_SLEEPMODE(cfg);
+
+ range = nmk_match_gpio_range(pctldev, pin);
+ if (!range) {
+ dev_err(npct->dev, "invalid pin offset %d\n", pin);
+ return -EINVAL;
+ }
+ if (!range->gc) {
+ dev_err(npct->dev, "GPIO chip missing in range for pin %d\n",
+ pin);
+ return -EINVAL;
+ }
+ chip = range->gc;
+ nmk_chip = container_of(chip, struct nmk_gpio_chip, chip);
+
+ if (sleep) {
+ int slpm_pull = PIN_SLPM_PULL(cfg);
+ int slpm_output = PIN_SLPM_DIR(cfg);
+ int slpm_val = PIN_SLPM_VAL(cfg);
+
+ /* All pins go into GPIO mode at sleep */
+ gpiomode = true;
+
+ /*
+ * The SLPM_* values are normal values + 1 to allow zero to
+ * mean "same as normal".
+ */
+ if (slpm_pull)
+ pull = slpm_pull - 1;
+ if (slpm_output)
+ output = slpm_output - 1;
+ if (slpm_val)
+ val = slpm_val - 1;
+
+ dev_dbg(nmk_chip->chip.dev, "pin %d: sleep pull %s, dir %s, val %s\n",
+ pin,
+ slpm_pull ? pullnames[pull] : "same",
+ slpm_output ? (output ? "output" : "input") : "same",
+ slpm_val ? (val ? "high" : "low") : "same");
+ }
+
+ dev_dbg(nmk_chip->chip.dev, "pin %d [%#lx]: pull %s, slpm %s (%s%s), lowemi %s\n",
+ pin, cfg, pullnames[pull], slpmnames[slpm],
+ output ? "output " : "input",
+ output ? (val ? "high" : "low") : "",
+ lowemi ? "on" : "off" );
+
+ clk_enable(nmk_chip->clk);
+ bit = pin % NMK_GPIO_PER_CHIP;
+ if (gpiomode)
+ /* No glitch when going to GPIO mode */
+ __nmk_gpio_set_mode(nmk_chip, bit, NMK_GPIO_ALT_GPIO);
+ if (output)
+ __nmk_gpio_make_output(nmk_chip, bit, val);
+ else {
+ __nmk_gpio_make_input(nmk_chip, bit);
+ __nmk_gpio_set_pull(nmk_chip, bit, pull);
+ }
+ /* TODO: isn't this only applicable on output pins? */
+ __nmk_gpio_set_lowemi(nmk_chip, bit, lowemi);
+
+ __nmk_gpio_set_slpm(nmk_chip, bit, slpm);
+ clk_disable(nmk_chip->clk);
+ return 0;
+}
+
+static struct pinconf_ops nmk_pinconf_ops = {
+ .pin_config_get = nmk_pin_config_get,
+ .pin_config_set = nmk_pin_config_set,
+};
+
+static struct pinctrl_desc nmk_pinctrl_desc = {
+ .name = "pinctrl-nomadik",
+ .pctlops = &nmk_pinctrl_ops,
+ .pmxops = &nmk_pinmux_ops,
+ .confops = &nmk_pinconf_ops,
+ .owner = THIS_MODULE,
+};
+
+static int __devinit nmk_pinctrl_probe(struct platform_device *pdev)
+{
+ const struct platform_device_id *platid = platform_get_device_id(pdev);
+ struct nmk_pinctrl *npct;
+ int i;
+
+ npct = devm_kzalloc(&pdev->dev, sizeof(*npct), GFP_KERNEL);
+ if (!npct)
+ return -ENOMEM;
+
+ /* Poke in other ASIC variants here */
+ if (platid->driver_data == PINCTRL_NMK_DB8500)
+ nmk_pinctrl_db8500_init(&npct->soc);
+
+ /*
+ * We need all the GPIO drivers to probe FIRST, or we will not be able
+ * to obtain references to the struct gpio_chip * for them, and we
+ * need this to proceed.
+ */
+ for (i = 0; i < npct->soc->gpio_num_ranges; i++) {
+ if (!nmk_gpio_chips[i]) {
+ dev_warn(&pdev->dev, "GPIO chip %d not registered yet\n", i);
+ devm_kfree(&pdev->dev, npct);
+ return -EPROBE_DEFER;
+ }
+ npct->soc->gpio_ranges[i].gc = &nmk_gpio_chips[i]->chip;
+ }
+
+ nmk_pinctrl_desc.pins = npct->soc->pins;
+ nmk_pinctrl_desc.npins = npct->soc->npins;
+ npct->dev = &pdev->dev;
+ npct->pctl = pinctrl_register(&nmk_pinctrl_desc, &pdev->dev, npct);
+ if (!npct->pctl) {
+ dev_err(&pdev->dev, "could not register Nomadik pinctrl driver\n");
+ return -EINVAL;
+ }
+
+ /* We will handle a range of GPIO pins */
+ for (i = 0; i < npct->soc->gpio_num_ranges; i++)
+ pinctrl_add_gpio_range(npct->pctl, &npct->soc->gpio_ranges[i]);
+
+ platform_set_drvdata(pdev, npct);
+ dev_info(&pdev->dev, "initialized Nomadik pin control driver\n");
+
+ return 0;
+}
+
+static const struct of_device_id nmk_gpio_match[] = {
+ { .compatible = "st,nomadik-gpio", },
+ {}
+};
+
+static struct platform_driver nmk_gpio_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "gpio",
+ .of_match_table = nmk_gpio_match,
+ },
+ .probe = nmk_gpio_probe,
+};
+
+static const struct platform_device_id nmk_pinctrl_id[] = {
+ { "pinctrl-stn8815", PINCTRL_NMK_STN8815 },
+ { "pinctrl-db8500", PINCTRL_NMK_DB8500 },
+};
+
+static struct platform_driver nmk_pinctrl_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "pinctrl-nomadik",
+ },
+ .probe = nmk_pinctrl_probe,
+ .id_table = nmk_pinctrl_id,
+};
+
+static int __init nmk_gpio_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&nmk_gpio_driver);
+ if (ret)
+ return ret;
+ return platform_driver_register(&nmk_pinctrl_driver);
+}
+
+core_initcall(nmk_gpio_init);
+
+MODULE_AUTHOR("Prafulla WADASKAR and Alessandro Rubini");
+MODULE_DESCRIPTION("Nomadik GPIO Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/pinctrl/pinctrl-nomadik.h b/drivers/pinctrl/pinctrl-nomadik.h
new file mode 100644
index 0000000..bc91aed
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-nomadik.h
@@ -0,0 +1,77 @@
+#ifndef PINCTRL_PINCTRL_NOMADIK_H
+#define PINCTRL_PINCTRL_NOMADIK_H
+
+#include <plat/gpio-nomadik.h>
+
+/* Package definitions */
+#define PINCTRL_NMK_STN8815 0
+#define PINCTRL_NMK_DB8500 1
+
+/**
+ * struct nmk_function - Nomadik pinctrl mux function
+ * @name: The name of the function, exported to pinctrl core.
+ * @groups: An array of pin groups that may select this function.
+ * @ngroups: The number of entries in @groups.
+ */
+struct nmk_function {
+ const char *name;
+ const char * const *groups;
+ unsigned ngroups;
+};
+
+/**
+ * struct nmk_pingroup - describes a Nomadik pin group
+ * @name: the name of this specific pin group
+ * @pins: an array of discrete physical pins used in this group, taken
+ * from the driver-local pin enumeration space
+ * @num_pins: the number of pins in this group array, i.e. the number of
+ * elements in .pins so we can iterate over that array
+ * @altsetting: the altsetting to apply to all pins in this group to
+ * configure them to be used by a function
+ */
+struct nmk_pingroup {
+ const char *name;
+ const unsigned int *pins;
+ const unsigned npins;
+ int altsetting;
+};
+
+/**
+ * struct nmk_pinctrl_soc_data - Nomadik pin controller per-SoC configuration
+ * @gpio_ranges: An array of GPIO ranges for this SoC
+ * @gpio_num_ranges: The number of GPIO ranges for this SoC
+ * @pins: An array describing all pins the pin controller affects.
+ * All pins which are also GPIOs must be listed first within the
+ * array, and be numbered identically to the GPIO controller's
+ * numbering.
+ * @npins: The number of entries in @pins.
+ * @functions: The functions supported on this SoC.
+ * @nfunction: The number of entries in @functions.
+ * @groups: An array describing all pin groups the pin SoC supports.
+ * @ngroups: The number of entries in @groups.
+ */
+struct nmk_pinctrl_soc_data {
+ struct pinctrl_gpio_range *gpio_ranges;
+ unsigned gpio_num_ranges;
+ const struct pinctrl_pin_desc *pins;
+ unsigned npins;
+ const struct nmk_function *functions;
+ unsigned nfunctions;
+ const struct nmk_pingroup *groups;
+ unsigned ngroups;
+};
+
+#ifdef CONFIG_PINCTRL_DB8500
+
+void nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc);
+
+#else
+
+static inline void
+nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc)
+{
+}
+
+#endif
+
+#endif /* PINCTRL_PINCTRL_NOMADIK_H */
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