From 8c7dd8bce05345ca5fe249b64782e8feeb3b9259 Mon Sep 17 00:00:00 2001 From: James Ban Date: Wed, 28 Jan 2015 09:28:08 +0900 Subject: 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 Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/regulator/da9211.txt | 7 ++++++- drivers/regulator/da9211-regulator.c | 12 ++++++++++++ include/linux/regulator/da9211.h | 1 + 3 files changed, 19 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/regulator/da9211.txt b/Documentation/devicetree/bindings/regulator/da9211.txt index 240019a82f9a..eb618907c7de 100644 --- a/Documentation/devicetree/bindings/regulator/da9211.txt +++ b/Documentation/devicetree/bindings/regulator/da9211.txt @@ -11,6 +11,7 @@ Required properties: BUCKA and BUCKB. Optional properties: +- enable-gpios: platform gpio for control of BUCKA/BUCKB. - Any optional property defined in regulator.txt Example 1) DA9211 @@ -27,6 +28,7 @@ Example 1) DA9211 regulator-max-microvolt = <1570000>; regulator-min-microamp = <2000000>; regulator-max-microamp = <5000000>; + enable-gpios = <&gpio 27 0>; }; BUCKB { regulator-name = "VBUCKB"; @@ -34,11 +36,12 @@ Example 1) DA9211 regulator-max-microvolt = <1570000>; regulator-min-microamp = <2000000>; regulator-max-microamp = <5000000>; + enable-gpios = <&gpio 17 0>; }; }; }; -Example 2) DA92113 +Example 2) DA9213 pmic: da9213@68 { compatible = "dlg,da9213"; reg = <0x68>; @@ -51,6 +54,7 @@ Example 2) DA92113 regulator-max-microvolt = <1570000>; regulator-min-microamp = <3000000>; regulator-max-microamp = <6000000>; + enable-gpios = <&gpio 27 0>; }; BUCKB { regulator-name = "VBUCKB"; @@ -58,6 +62,7 @@ Example 2) DA92113 regulator-max-microvolt = <1570000>; regulator-min-microamp = <3000000>; regulator-max-microamp = <6000000>; + enable-gpios = <&gpio 17 0>; }; }; }; diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index 8e6957c63a69..01343419555e 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include "da9211-regulator.h" @@ -277,6 +278,9 @@ static struct da9211_pdata *da9211_parse_regulators_dt( pdata->init_data[n] = da9211_matches[i].init_data; pdata->reg_node[n] = da9211_matches[i].of_node; + pdata->gpio_ren[n] = + of_get_named_gpio(da9211_matches[i].of_node, + "enable-gpios", 0); n++; } @@ -366,6 +370,14 @@ static int da9211_regulator_init(struct da9211 *chip) config.regmap = chip->regmap; config.of_node = chip->pdata->reg_node[i]; + if (gpio_is_valid(chip->pdata->gpio_ren[i])) { + config.ena_gpio = chip->pdata->gpio_ren[i]; + config.ena_gpio_initialized = true; + } else { + config.ena_gpio = -EINVAL; + config.ena_gpio_initialized = false; + } + chip->rdev[i] = devm_regulator_register(chip->dev, &da9211_regulators[i], &config); if (IS_ERR(chip->rdev[i])) { diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h index d1d9d3849bdb..5dd65acc2a69 100644 --- a/include/linux/regulator/da9211.h +++ b/include/linux/regulator/da9211.h @@ -32,6 +32,7 @@ struct da9211_pdata { * 2 : 2 phase 2 buck */ int num_buck; + int gpio_ren[DA9211_MAX_REGULATORS]; struct device_node *reg_node[DA9211_MAX_REGULATORS]; struct regulator_init_data *init_data[DA9211_MAX_REGULATORS]; }; -- cgit