diff options
| -rw-r--r-- | Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt | 5 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-rockchip.c | 91 |
2 files changed, 94 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt index 388b213249fd..391ef4be8d50 100644 --- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt @@ -21,14 +21,15 @@ 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,rk3288-pinctrl", "rockchip,rk3368-pinctrl" - rockchip,grf: phandle referencing a syscon providing the "general register files" Optional properties for iomux controller: - rockchip,pmu: phandle referencing a syscon providing the pmu registers as some SoCs carry parts of the iomux controller registers there. - Required for at least rk3188 and rk3288. + Required for at least rk3188 and rk3288. On the rk3368 this should + point to the PMUGRF syscon. Deprecated properties for iomux controller: - reg: first element is the general register space of the iomux controller diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index 429a6eec8c47..9affcd725776 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -63,6 +63,7 @@ enum rockchip_pinctrl_type { RK3066B, RK3188, RK3288, + RK3368, }; /** @@ -613,6 +614,68 @@ static void rk3288_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank, } } +#define RK3368_PULL_GRF_OFFSET 0x100 +#define RK3368_PULL_PMU_OFFSET 0x10 + +static void rk3368_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 32 pins of the first bank are located in PMU */ + if (bank->bank_num == 0) { + *regmap = info->regmap_pmu; + *reg = RK3368_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 = RK3368_PULL_GRF_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; + } +} + +#define RK3368_DRV_PMU_OFFSET 0x20 +#define RK3368_DRV_GRF_OFFSET 0x200 + +static void rk3368_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; + + /* The first 32 pins of the first bank are located in PMU */ + if (bank->bank_num == 0) { + *regmap = info->regmap_pmu; + *reg = RK3368_DRV_PMU_OFFSET; + + *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4); + *bit = pin_num % RK3288_DRV_PINS_PER_REG; + *bit *= RK3288_DRV_BITS_PER_PIN; + } else { + *regmap = info->regmap_base; + *reg = RK3368_DRV_GRF_OFFSET; + + /* correct the offset, as we're starting with the 2nd bank */ + *reg -= 0x10; + *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; + } +} + static int rockchip_perpin_drv_list[] = { 2, 4, 8, 12 }; static int rockchip_get_drive_perpin(struct rockchip_pin_bank *bank, @@ -703,6 +766,7 @@ static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num) : PIN_CONFIG_BIAS_DISABLE; case RK3188: case RK3288: + case RK3368: data >>= bit; data &= (1 << RK3188_PULL_BITS_PER_PIN) - 1; @@ -758,6 +822,7 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank, break; case RK3188: case RK3288: + case RK3368: spin_lock_irqsave(&bank->slock, flags); /* enable the write to the equivalent lower bits */ @@ -935,6 +1000,7 @@ static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl, return pull ? false : true; case RK3188: case RK3288: + case RK3368: return (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT); } @@ -2068,6 +2134,29 @@ static struct rockchip_pin_ctrl rk3288_pin_ctrl = { .drv_calc_reg = rk3288_calc_drv_reg_and_bit, }; +static struct rockchip_pin_bank rk3368_pin_banks[] = { + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU, + IOMUX_SOURCE_PMU, + IOMUX_SOURCE_PMU, + IOMUX_SOURCE_PMU + ), + PIN_BANK(1, 32, "gpio1"), + PIN_BANK(2, 32, "gpio2"), + PIN_BANK(3, 32, "gpio3"), +}; + +static struct rockchip_pin_ctrl rk3368_pin_ctrl = { + .pin_banks = rk3368_pin_banks, + .nr_banks = ARRAY_SIZE(rk3368_pin_banks), + .label = "RK3368-GPIO", + .type = RK3368, + .grf_mux_offset = 0x0, + .pmu_mux_offset = 0x0, + .pull_calc_reg = rk3368_calc_pull_reg_and_bit, + .drv_calc_reg = rk3368_calc_drv_reg_and_bit, +}; + + static const struct of_device_id rockchip_pinctrl_dt_match[] = { { .compatible = "rockchip,rk2928-pinctrl", .data = (void *)&rk2928_pin_ctrl }, @@ -2079,6 +2168,8 @@ static const struct of_device_id rockchip_pinctrl_dt_match[] = { .data = (void *)&rk3188_pin_ctrl }, { .compatible = "rockchip,rk3288-pinctrl", .data = (void *)&rk3288_pin_ctrl }, + { .compatible = "rockchip,rk3368-pinctrl", + .data = (void *)&rk3368_pin_ctrl }, {}, }; MODULE_DEVICE_TABLE(of, rockchip_pinctrl_dt_match); |