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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>
This commit is contained in:
James Ban 2015-01-28 09:28:08 +09:00 committed by Mark Brown
parent 076c3b8e03
commit 8c7dd8bce0
3 changed files with 19 additions and 1 deletions
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7
Documentation/devicetree/bindings/regulator/da9211.txt
View File

@ -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>;
};
};
};

12
drivers/regulator/da9211-regulator.c
View File

@ -24,6 +24,7 @@
#include <linux/regmap.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/of_gpio.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/da9211.h>
#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])) {

1
include/linux/regulator/da9211.h
View File

@ -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];
};