regulator: da9211: Add gpio control for enable/disable of buck
This is a patch for adding gpio control about enable/disable of buck. Signed-off-by: James Ban <james.ban.opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -11,6 +11,7 @@ Required properties:
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BUCKA and BUCKB.
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Optional properties:
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- enable-gpios: platform gpio for control of BUCKA/BUCKB.
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- Any optional property defined in regulator.txt
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Example 1) DA9211
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@ -27,6 +28,7 @@ Example 1) DA9211
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regulator-max-microvolt = <1570000>;
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regulator-min-microamp = <2000000>;
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regulator-max-microamp = <5000000>;
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enable-gpios = <&gpio 27 0>;
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};
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BUCKB {
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regulator-name = "VBUCKB";
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@ -34,11 +36,12 @@ Example 1) DA9211
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regulator-max-microvolt = <1570000>;
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regulator-min-microamp = <2000000>;
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regulator-max-microamp = <5000000>;
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enable-gpios = <&gpio 17 0>;
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};
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};
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};
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Example 2) DA92113
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Example 2) DA9213
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pmic: da9213@68 {
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compatible = "dlg,da9213";
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reg = <0x68>;
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@ -51,6 +54,7 @@ Example 2) DA92113
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regulator-max-microvolt = <1570000>;
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regulator-min-microamp = <3000000>;
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regulator-max-microamp = <6000000>;
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enable-gpios = <&gpio 27 0>;
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};
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BUCKB {
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regulator-name = "VBUCKB";
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@ -58,6 +62,7 @@ Example 2) DA92113
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regulator-max-microvolt = <1570000>;
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regulator-min-microamp = <3000000>;
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regulator-max-microamp = <6000000>;
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enable-gpios = <&gpio 17 0>;
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};
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};
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};
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@ -24,6 +24,7 @@
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#include <linux/regmap.h>
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#include <linux/irq.h>
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#include <linux/interrupt.h>
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#include <linux/of_gpio.h>
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#include <linux/regulator/of_regulator.h>
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#include <linux/regulator/da9211.h>
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#include "da9211-regulator.h"
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@ -277,6 +278,9 @@ static struct da9211_pdata *da9211_parse_regulators_dt(
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pdata->init_data[n] = da9211_matches[i].init_data;
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pdata->reg_node[n] = da9211_matches[i].of_node;
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pdata->gpio_ren[n] =
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of_get_named_gpio(da9211_matches[i].of_node,
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"enable-gpios", 0);
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n++;
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}
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@ -366,6 +370,14 @@ static int da9211_regulator_init(struct da9211 *chip)
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config.regmap = chip->regmap;
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config.of_node = chip->pdata->reg_node[i];
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if (gpio_is_valid(chip->pdata->gpio_ren[i])) {
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config.ena_gpio = chip->pdata->gpio_ren[i];
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config.ena_gpio_initialized = true;
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} else {
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config.ena_gpio = -EINVAL;
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config.ena_gpio_initialized = false;
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}
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chip->rdev[i] = devm_regulator_register(chip->dev,
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&da9211_regulators[i], &config);
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if (IS_ERR(chip->rdev[i])) {
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@ -32,6 +32,7 @@ struct da9211_pdata {
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* 2 : 2 phase 2 buck
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*/
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int num_buck;
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int gpio_ren[DA9211_MAX_REGULATORS];
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struct device_node *reg_node[DA9211_MAX_REGULATORS];
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struct regulator_init_data *init_data[DA9211_MAX_REGULATORS];
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};
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