Commit 727293a8 authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy Committed by Linus Walleij
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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.

Signed-off-by: default avatarSubbaraman Narayanamurthy <quic_subbaram@quicinc.com>
Reviewed-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1631588246-4811-3-git-send-email-quic_subbaram@quicinc.com


[Drop copyright change which is already upstrean in -rcN]
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 8c826461

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

+6 −0
Original line number Diff line number Diff line
@@ -424,6 +424,9 @@ static int pmic_gpio_config_get(struct pinctrl_dev *pctldev, 
			return -EINVAL;

		arg = 1;

		break;

	case PIN_CONFIG_OUTPUT_ENABLE:

		arg = pad->output_enabled;

		break;

	case PIN_CONFIG_OUTPUT:

		arg = pad->out_value;

		break;
@@ -503,6 +506,9 @@ 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;