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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 17:48:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 17:48:14 -0700
commit2ca7d674d7ab2220707b2ada0b690c0e7c95e7ac (patch)
tree9c0927ed1d540e5fd704c1f82689870786514655 /arch/arm/mach-nomadik/i2c-8815nhk.c
parent2195d2818c37bdf263865f1e9effccdd9fc5f9d4 (diff)
parent87d721ad7a37b7650dd710c88dd5c6a5bf9fe996 (diff)
downloadop-kernel-dev-2ca7d674d7ab2220707b2ada0b690c0e7c95e7ac.zip
op-kernel-dev-2ca7d674d7ab2220707b2ada0b690c0e7c95e7ac.tar.gz
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (257 commits) [ARM] Update mach-types ARM: 5636/1: Move vendor enum to AMBA include ARM: Fix pfn_valid() for sparse memory [ARM] orion5x: Add LaCie NAS 2Big Network support [ARM] pxa/sharpsl_pm: zaurus c3000 aka spitz: fix resume ARM: 5686/1: at91: Correct AC97 reset line in at91sam9263ek board ARM: 5640/1: This patch modifies the support of AC97 on the at91sam9263 ek board ARM: 5689/1: Update default config of HP Jornada 700-series machines ARM: 5691/1: fix cache aliasing issues between kmap() and kmap_atomic() with highmem ARM: 5688/1: ks8695_serial: disable_irq() lockup ARM: 5687/1: fix an oops with highmem ARM: 5684/1: Add nuc960 platform to w90x900 ARM: 5683/1: Add nuc950 platform to w90x900 ARM: 5682/1: Add cpu.c and dev.c and modify some files of w90p910 platform ARM: 5626/1: add suspend/resume functions to amba-pl011 serial driver ARM: 5625/1: fix hard coded 4K resource size in amba bus detection MMC: MMCI: convert realview MMC to use gpiolib ARM: 5685/1: Make MMCI driver compile without gpiolib ARM: implement highpte ARM: Show FIQ in /proc/interrupts on CONFIG_FIQ ... Fix up trivial conflict in arch/arm/kernel/signal.c. It was due to the TIF_NOTIFY_RESUME addition in commit d0420c83f ("KEYS: Extend TIF_NOTIFY_RESUME to (almost) all architectures") and follow-ups.
Diffstat (limited to 'arch/arm/mach-nomadik/i2c-8815nhk.c')
-rw-r--r--arch/arm/mach-nomadik/i2c-8815nhk.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/arm/mach-nomadik/i2c-8815nhk.c b/arch/arm/mach-nomadik/i2c-8815nhk.c
new file mode 100644
index 0000000..abfe25a
--- /dev/null
+++ b/arch/arm/mach-nomadik/i2c-8815nhk.c
@@ -0,0 +1,65 @@
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/i2c-gpio.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+
+/*
+ * There are two busses in the 8815NHK.
+ * They could, in theory, be driven by the hardware component, but we
+ * use bit-bang through GPIO by now, to keep things simple
+ */
+
+static struct i2c_gpio_platform_data nhk8815_i2c_data0 = {
+ /* keep defaults for timeouts; pins are push-pull bidirectional */
+ .scl_pin = 62,
+ .sda_pin = 63,
+};
+
+static struct i2c_gpio_platform_data nhk8815_i2c_data1 = {
+ /* keep defaults for timeouts; pins are push-pull bidirectional */
+ .scl_pin = 53,
+ .sda_pin = 54,
+};
+
+/* first bus: GPIO XX and YY */
+static struct platform_device nhk8815_i2c_dev0 = {
+ .name = "i2c-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = &nhk8815_i2c_data0,
+ },
+};
+/* second bus: GPIO XX and YY */
+static struct platform_device nhk8815_i2c_dev1 = {
+ .name = "i2c-gpio",
+ .id = 1,
+ .dev = {
+ .platform_data = &nhk8815_i2c_data1,
+ },
+};
+
+static int __init nhk8815_i2c_init(void)
+{
+ nmk_gpio_set_mode(nhk8815_i2c_data0.scl_pin, NMK_GPIO_ALT_GPIO);
+ nmk_gpio_set_mode(nhk8815_i2c_data0.sda_pin, NMK_GPIO_ALT_GPIO);
+ platform_device_register(&nhk8815_i2c_dev0);
+
+ nmk_gpio_set_mode(nhk8815_i2c_data1.scl_pin, NMK_GPIO_ALT_GPIO);
+ nmk_gpio_set_mode(nhk8815_i2c_data1.sda_pin, NMK_GPIO_ALT_GPIO);
+ platform_device_register(&nhk8815_i2c_dev1);
+
+ return 0;
+}
+
+static void __exit nhk8815_i2c_exit(void)
+{
+ platform_device_unregister(&nhk8815_i2c_dev0);
+ platform_device_unregister(&nhk8815_i2c_dev1);
+ return;
+}
+
+module_init(nhk8815_i2c_init);
+module_exit(nhk8815_i2c_exit);
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