diff options
| author | Sumit Garg <[email protected]> | 2024-04-12 15:24:35 +0530 |
|---|---|---|
| committer | Caleb Connolly <[email protected]> | 2024-04-23 13:29:23 +0200 |
| commit | b04f0cd2714bbb606d5c57c6d8e398de987b7cce (patch) | |
| tree | 034cdd09686a4ac0d54b84fbe479b9b94660def5 | |
| parent | 512672492ccf09adb98e185243f2edace54e3ef4 (diff) | |
pinctrl: qcom: Add support for driving GPIO pins output
Add support for driving the GPIO pins as output low or high.
Signed-off-by: Sumit Garg <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Signed-off-by: Caleb Connolly <[email protected]>
| -rw-r--r-- | drivers/pinctrl/qcom/pinctrl-qcom.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-qcom.c b/drivers/pinctrl/qcom/pinctrl-qcom.c index 909e566acf5..e68971b37ff 100644 --- a/drivers/pinctrl/qcom/pinctrl-qcom.c +++ b/drivers/pinctrl/qcom/pinctrl-qcom.c @@ -29,15 +29,24 @@ struct msm_pinctrl_priv { #define GPIO_CONFIG_REG(priv, x) \ (qcom_pin_offset((priv)->data->pin_data.pin_offsets, x)) -#define TLMM_GPIO_PULL_MASK GENMASK(1, 0) -#define TLMM_FUNC_SEL_MASK GENMASK(5, 2) -#define TLMM_DRV_STRENGTH_MASK GENMASK(8, 6) -#define TLMM_GPIO_DISABLE BIT(9) +#define GPIO_IN_OUT_REG(priv, x) \ + (GPIO_CONFIG_REG(priv, x) + 0x4) + +#define TLMM_GPIO_PULL_MASK GENMASK(1, 0) +#define TLMM_FUNC_SEL_MASK GENMASK(5, 2) +#define TLMM_DRV_STRENGTH_MASK GENMASK(8, 6) +#define TLMM_GPIO_OUTPUT_MASK BIT(1) +#define TLMM_GPIO_OE_MASK BIT(9) + +/* GPIO register shifts. */ +#define GPIO_OUT_SHIFT 1 static const struct pinconf_param msm_conf_params[] = { { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 2 }, { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 }, { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 3 }, + { "output-high", PIN_CONFIG_OUTPUT, 1, }, + { "output-low", PIN_CONFIG_OUTPUT, 0, }, }; static int msm_get_functions_count(struct udevice *dev) @@ -90,7 +99,7 @@ static int msm_pinmux_set(struct udevice *dev, unsigned int pin_selector, return 0; clrsetbits_le32(priv->base + GPIO_CONFIG_REG(priv, pin_selector), - TLMM_FUNC_SEL_MASK | TLMM_GPIO_DISABLE, func << 2); + TLMM_FUNC_SEL_MASK | TLMM_GPIO_OE_MASK, func << 2); return 0; } @@ -117,6 +126,12 @@ static int msm_pinconf_set(struct udevice *dev, unsigned int pin_selector, clrsetbits_le32(priv->base + GPIO_CONFIG_REG(priv, pin_selector), TLMM_GPIO_PULL_MASK, argument); break; + case PIN_CONFIG_OUTPUT: + writel(argument << GPIO_OUT_SHIFT, + priv->base + GPIO_IN_OUT_REG(priv, pin_selector)); + setbits_le32(priv->base + GPIO_CONFIG_REG(priv, pin_selector), + TLMM_GPIO_OE_MASK); + break; default: return 0; } |