Commit 69b1576d authored Dec 15, 2017 by Subbaraman Narayanamurthy

pinctrl: qcom: spmi-gpio: add support to enable/disable output



Currently, if the GPIO is configured as output in the bootloader
and user changes the mode to input in HLOS, it would end up
getting configured as input/output. Functionally, this is fine;
however, there may be some requirements where the output needs
to be disabled so that it can be used only for input.

Add support to enable/disable output mode through "output-enable"
or "output-disable" pinctrl properties.

Change-Id: Ie857f94d529a6209bcb82ef3775d414f19d5678a
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>

parent be60ad58

drivers/pinctrl/qcom/pinctrl-spmi-gpio.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -421,6 +421,9 @@ static int pmic_gpio_config_get(struct pinctrl_dev *pctldev,
		case PIN_CONFIG_INPUT_ENABLE:
		arg = pad->input_enabled;
		break;
		case PIN_CONFIG_OUTPUT_ENABLE:
		arg = pad->output_enabled;
		break;
		case PIN_CONFIG_OUTPUT:
		arg = pad->out_value;
		break;
		@@ -499,6 +502,9 @@ static int pmic_gpio_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
		case PIN_CONFIG_INPUT_ENABLE:
		pad->input_enabled = arg ? true : false;
		break;
		case PIN_CONFIG_OUTPUT_ENABLE:
		pad->output_enabled = arg ? true : false;
		break;
		case PIN_CONFIG_OUTPUT:
		pad->output_enabled = true;
		pad->out_value = arg;