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authorHeiko Stübner <heiko@sntech.de>2014-06-16 01:38:14 +0200
committerLinus Walleij <linus.walleij@linaro.org>2014-07-11 14:08:29 +0200
commit304f077d4c07d315b9325cb101fc47ba2ffc5466 (patch)
tree741fff4a851a473f9d75bd3fc48f6c171f4dca77
parent62f49226b03b6464b6fa71ad926932f9b3c8232a (diff)
downloadop-kernel-dev-304f077d4c07d315b9325cb101fc47ba2ffc5466.zip
op-kernel-dev-304f077d4c07d315b9325cb101fc47ba2ffc5466.tar.gz
pinctrl: rockchip: add support for rk3288 pin-controller
The pin-controller of the new RK3288 contains all the quirks just added in the previous patches. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
-rw-r--r--Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt1
-rw-r--r--drivers/pinctrl/pinctrl-rockchip.c73
2 files changed, 74 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
index eb0544f..4658b69 100644
--- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
@@ -21,6 +21,7 @@ defined as gpio sub-nodes of the pinmux controller.
Required properties for iomux controller:
- compatible: one of "rockchip,rk2928-pinctrl", "rockchip,rk3066a-pinctrl"
"rockchip,rk3066b-pinctrl", "rockchip,rk3188-pinctrl"
+ "rockchip,rk3288-pinctrl"
- rockchip,grf: phandle referencing a syscon providing the
"general register files"
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 65b7321..192aaee 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -543,6 +543,35 @@ static void rk3188_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
}
}
+#define RK3288_PULL_OFFSET 0x140
+static void rk3288_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+
+ /* The first 24 pins of the first bank are located in PMU */
+ if (bank->bank_num == 0) {
+ *regmap = info->regmap_pmu;
+ *reg = RK3188_PULL_PMU_OFFSET;
+
+ *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3188_PULL_PINS_PER_REG;
+ *bit *= RK3188_PULL_BITS_PER_PIN;
+ } else {
+ *regmap = info->regmap_base;
+ *reg = RK3288_PULL_OFFSET;
+
+ /* correct the offset, as we're starting with the 2nd bank */
+ *reg -= 0x10;
+ *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3188_PULL_PINS_PER_REG);
+ *bit *= RK3188_PULL_BITS_PER_PIN;
+ }
+}
+
static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
{
struct rockchip_pinctrl *info = bank->drvdata;
@@ -1780,6 +1809,48 @@ static struct rockchip_pin_ctrl rk3188_pin_ctrl = {
.pull_calc_reg = rk3188_calc_pull_reg_and_bit,
};
+static struct rockchip_pin_bank rk3288_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 24, "gpio0", IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_UNROUTED
+ ),
+ PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_UNROUTED,
+ IOMUX_UNROUTED,
+ IOMUX_UNROUTED,
+ 0
+ ),
+ PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, IOMUX_UNROUTED),
+ PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, IOMUX_WIDTH_4BIT),
+ PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4", IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ 0,
+ 0
+ ),
+ PIN_BANK_IOMUX_FLAGS(5, 32, "gpio5", IOMUX_UNROUTED,
+ 0,
+ 0,
+ IOMUX_UNROUTED
+ ),
+ PIN_BANK_IOMUX_FLAGS(6, 32, "gpio6", 0, 0, 0, IOMUX_UNROUTED),
+ PIN_BANK_IOMUX_FLAGS(7, 32, "gpio7", 0,
+ 0,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_UNROUTED
+ ),
+ PIN_BANK(8, 16, "gpio8"),
+};
+
+static struct rockchip_pin_ctrl rk3288_pin_ctrl = {
+ .pin_banks = rk3288_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3288_pin_banks),
+ .label = "RK3288-GPIO",
+ .type = RK3188,
+ .grf_mux_offset = 0x0,
+ .pmu_mux_offset = 0x84,
+ .pull_calc_reg = rk3288_calc_pull_reg_and_bit,
+};
+
static const struct of_device_id rockchip_pinctrl_dt_match[] = {
{ .compatible = "rockchip,rk2928-pinctrl",
.data = (void *)&rk2928_pin_ctrl },
@@ -1789,6 +1860,8 @@ static const struct of_device_id rockchip_pinctrl_dt_match[] = {
.data = (void *)&rk3066b_pin_ctrl },
{ .compatible = "rockchip,rk3188-pinctrl",
.data = (void *)&rk3188_pin_ctrl },
+ { .compatible = "rockchip,rk3288-pinctrl",
+ .data = (void *)&rk3288_pin_ctrl },
{},
};
MODULE_DEVICE_TABLE(of, rockchip_pinctrl_dt_match);
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