From fea0fe60527667282913cf9f2becb5f7c67d6185 Mon Sep 17 00:00:00 2001 From: Jeffy Chen Date: Wed, 9 Dec 2015 17:04:06 +0800 Subject: [PATCH] pinctrl: rockchip: add support for the rk3228 The pinctrl of rk3228 is much the same as rk3288's, but without pmu. Signed-off-by: Jeffy Chen Reviewed-by: Heiko Stuebner Acked-by: Rob Herring Signed-off-by: Linus Walleij --- .../bindings/pinctrl/rockchip,pinctrl.txt | 3 +- drivers/pinctrl/pinctrl-rockchip.c | 53 +++++++++++++++++++ 2 files changed, 55 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt index 391ef4be8d50..0cd701b1947f 100644 --- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt @@ -21,7 +21,8 @@ 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,rk3368-pinctrl" + "rockchip,rk3228-pinctrl", "rockchip,rk3288-pinctrl" + "rockchip,rk3368-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 a0651128e23a..faab36ec6de8 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -614,6 +614,40 @@ static void rk3288_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, } } +#define RK3228_PULL_OFFSET 0x100 + +static void rk3228_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; + + *regmap = info->regmap_base; + *reg = RK3228_PULL_OFFSET; + *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; +} + +#define RK3228_DRV_GRF_OFFSET 0x200 + +static void rk3228_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, + int pin_num, struct regmap **regmap, + int *reg, u8 *bit) +{ + struct rockchip_pinctrl *info = bank->drvdata; + + *regmap = info->regmap_base; + *reg = RK3228_DRV_GRF_OFFSET; + *reg += bank->bank_num * RK3288_DRV_BANK_STRIDE; + *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4); + + *bit = (pin_num % RK3288_DRV_PINS_PER_REG); + *bit *= RK3288_DRV_BITS_PER_PIN; +} + #define RK3368_PULL_GRF_OFFSET 0x100 #define RK3368_PULL_PMU_OFFSET 0x10 @@ -2143,6 +2177,23 @@ static struct rockchip_pin_ctrl rk3188_pin_ctrl = { .pull_calc_reg = rk3188_calc_pull_reg_and_bit, }; +static struct rockchip_pin_bank rk3228_pin_banks[] = { + PIN_BANK(0, 32, "gpio0"), + PIN_BANK(1, 32, "gpio1"), + PIN_BANK(2, 32, "gpio2"), + PIN_BANK(3, 32, "gpio3"), +}; + +static struct rockchip_pin_ctrl rk3228_pin_ctrl = { + .pin_banks = rk3228_pin_banks, + .nr_banks = ARRAY_SIZE(rk3228_pin_banks), + .label = "RK3228-GPIO", + .type = RK3288, + .grf_mux_offset = 0x0, + .pull_calc_reg = rk3228_calc_pull_reg_and_bit, + .drv_calc_reg = rk3228_calc_drv_reg_and_bit, +}; + static struct rockchip_pin_bank rk3288_pin_banks[] = { PIN_BANK_IOMUX_FLAGS(0, 24, "gpio0", IOMUX_SOURCE_PMU, IOMUX_SOURCE_PMU, @@ -2220,6 +2271,8 @@ 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,rk3228-pinctrl", + .data = (void *)&rk3228_pin_ctrl }, { .compatible = "rockchip,rk3288-pinctrl", .data = (void *)&rk3288_pin_ctrl }, { .compatible = "rockchip,rk3368-pinctrl", -- 2.20.1