[PATCH 1/2] gpio: qcom_pmic_gpio: implement standard pinconf parameters
Petr Hodina via B4 Relay <[email protected]>
| Newsgroups | org.kernel.vger.phone-devel,org.kernel.feeds.b4-sent,org.u-boot-project.lists.u-boot |
|---|---|
| Message-ID | <[email protected]> |
From: Petr Hodina <[email protected]> Set bias-pull-up/down/disable, input-enable and the vendor qcom,drive-strength properties in pinconf_params. Signed-off-by: Petr Hodina <[email protected]> --- drivers/gpio/qcom_pmic_gpio.c | 35 ++++++++++++++++++++++++++++++++--- 1 file changed, 32 insertions(+), 3 deletions(-) diff --git a/drivers/gpio/qcom_pmic_gpio.c b/drivers/gpio/qcom_pmic_gpio.c index 4458c55cd3d..71cc76fef2f 100644 --- a/drivers/gpio/qcom_pmic_gpio.c +++ b/drivers/gpio/qcom_pmic_gpio.c @@ -56,6 +56,8 @@ #define REG_DIG_VIN_VIN0 0 #define REG_DIG_PULL_CTL 0x42 +#define REG_DIG_PULL_UP_30K 0x0 +#define REG_DIG_PULL_DN 0x4 #define REG_DIG_PULL_NO_PU 0x5 #define REG_LV_MV_OUTPUT_CTL 0x44 @@ -365,6 +367,11 @@ U_BOOT_DRIVER(qcom_pmic_gpio) = { static const struct pinconf_param qcom_pmic_pinctrl_conf_params[] = { { "output-high", PIN_CONFIG_OUTPUT_ENABLE, 1 }, { "output-low", PIN_CONFIG_OUTPUT, 0 }, + { "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 }, + { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 }, + { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 0 }, + { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 0 }, + { "qcom,drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 }, }; static int qcom_pmic_pinctrl_get_pins_count(struct udevice *dev) @@ -387,9 +394,31 @@ static const char *qcom_pmic_pinctrl_get_pin_name(struct udevice *dev, unsigned static int qcom_pmic_pinctrl_pinconf_set(struct udevice *dev, unsigned int selector, unsigned int param, unsigned int arg) { - /* We only support configuring the pin as an output, either low or high */ - return _qcom_gpio_set_direction(dev, selector, false, - param == PIN_CONFIG_OUTPUT_ENABLE); + struct qcom_pmic_gpio_data *plat = dev_get_plat(dev); + u32 gpio_base = plat->pid + REG_OFFSET(selector); + + switch (param) { + case PIN_CONFIG_OUTPUT_ENABLE: + case PIN_CONFIG_OUTPUT: + return qcom_gpio_set_direction(dev, selector, false, + param == PIN_CONFIG_OUTPUT_ENABLE); + case PIN_CONFIG_INPUT_ENABLE: + return qcom_gpio_set_direction(dev, selector, true, 0); + case PIN_CONFIG_BIAS_PULL_UP: + return pmic_reg_write(plat->pmic, gpio_base + REG_DIG_PULL_CTL, + REG_DIG_PULL_UP_30K); + case PIN_CONFIG_BIAS_PULL_DOWN: + return pmic_reg_write(plat->pmic, gpio_base + REG_DIG_PULL_CTL, + REG_DIG_PULL_DN); + case PIN_CONFIG_BIAS_DISABLE: + return pmic_reg_write(plat->pmic, gpio_base + REG_DIG_PULL_CTL, + REG_DIG_PULL_NO_PU); + case PIN_CONFIG_DRIVE_STRENGTH: + return pmic_reg_write(plat->pmic, gpio_base + REG_DIG_OUT_CTL, + REG_DIG_OUT_CTL_CMOS | (arg & 0x3)); + default: + return -EOPNOTSUPP; + } } static const char *qcom_pmic_pinctrl_get_function_name(struct udevice *dev, unsigned int selector) -- 2.53.0