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Commit de5d0563 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Mark Brown
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regulator: s2mps11: Allow GPIO 0 to be used as external control on S2MPS14 



GPIO 0 is a valid GPIO so allow using it as external control for
S2MPS14 regulators.

Signed-off-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 9b63cfbf

drivers/regulator/s2mps11.c

+11 −11
Original line number Diff line number Diff line
@@ -412,7 +412,7 @@ static int s2mps14_regulator_enable(struct regulator_dev *rdev) 


	if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev)))

		val = S2MPS14_ENABLE_SUSPEND;

	else if (s2mps11->ext_control_gpio[rdev_get_id(rdev)])

	else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)]))

		val = S2MPS14_ENABLE_EXT_CONTROL;

	else

		val = rdev->desc->enable_mask;
@@ -593,9 +593,7 @@ static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, 


		gpio[reg] = of_get_named_gpio(rdata[reg].of_node,

				"samsung,ext-control-gpios", 0);

		if (!gpio_is_valid(gpio[reg]))

			gpio[reg] = 0;

		else

		if (gpio_is_valid(gpio[reg]))

			dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n",

					gpio[reg], reg, rdata[reg].name);

	}
@@ -658,6 +656,12 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) 
			GFP_KERNEL);

	if (!s2mps11->ext_control_gpio)

		return -ENOMEM;

	/*

	 * 0 is a valid GPIO so initialize all GPIO-s to negative value

	 * to indicate that external control won't be used for this regulator.

	 */

	for (i = 0; i < s2mps11->rdev_num; i++)

		s2mps11->ext_control_gpio[i] = -EINVAL;



	if (!iodev->dev->of_node) {

		if (iodev->pdata) {
@@ -687,6 +691,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) 
	config.dev = &pdev->dev;

	config.regmap = iodev->regmap_pmic;

	config.driver_data = s2mps11;

	config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH;

	for (i = 0; i < s2mps11->rdev_num; i++) {

		struct regulator_dev *regulator;
@@ -697,12 +702,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) 
			config.init_data = rdata[i].init_data;

			config.of_node = rdata[i].of_node;

		}



		if (s2mps11->ext_control_gpio[i]) {

		config.ena_gpio = s2mps11->ext_control_gpio[i];

			config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH;

		} else

			config.ena_gpio = config.ena_gpio_flags = 0;



		regulator = devm_regulator_register(&pdev->dev,

						&regulators[i], &config);
@@ -713,7 +713,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) 
			goto out;

		}



		if (s2mps11->ext_control_gpio[i]) {

		if (gpio_is_valid(s2mps11->ext_control_gpio[i])) {

			ret = s2mps14_pmic_enable_ext_control(s2mps11,

					regulator);

			if (ret < 0) {