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authorSven Schwermer <sven@svenschwermer.de>2019-06-24 13:03:34 +0200
committerTom Rini <trini@konsulko.com>2019-07-18 11:31:25 -0400
commitaa2067a8692ece9b4ce470a2c6c6704987bfd56c (patch)
tree5aeb25a7b788455bd90348bb068b954212a8cdbd /drivers/power/regulator
parent2f7a5f2682edc99daee1fa1d7dadd4b9f09e7b59 (diff)
regulator: Allow enabling GPIO regulator
Drivers need to be able to enable regulators that may be implemented as GPIO regulators. Example: fsl_esdhc enables the vqmmc supply which is commonly implemented as a GPIO regulator in order to switch between I/O voltage levels. Signed-off-by: Sven Schwermer <sven@svenschwermer.de> Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'drivers/power/regulator')
-rw-r--r--drivers/power/regulator/Kconfig2
-rw-r--r--drivers/power/regulator/gpio-regulator.c18
2 files changed, 19 insertions, 1 deletions
diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig
index 30c0a13e85..337e9e7471 100644
--- a/drivers/power/regulator/Kconfig
+++ b/drivers/power/regulator/Kconfig
@@ -120,6 +120,7 @@ config SPL_DM_REGULATOR_FIXED
config DM_REGULATOR_GPIO
bool "Enable Driver Model for GPIO REGULATOR"
depends on DM_REGULATOR && DM_GPIO
+ select DM_REGULATOR_COMMON
---help---
This config enables implementation of driver-model regulator uclass
features for gpio regulators. The driver implements get/set for
@@ -128,6 +129,7 @@ config DM_REGULATOR_GPIO
config SPL_DM_REGULATOR_GPIO
bool "Enable Driver Model for GPIO REGULATOR in SPL"
depends on DM_REGULATOR_GPIO && SPL_GPIO_SUPPORT
+ select SPL_DM_REGULATOR_COMMON
---help---
This config enables implementation of driver-model regulator uclass
features for gpio regulators in SPL.
diff --git a/drivers/power/regulator/gpio-regulator.c b/drivers/power/regulator/gpio-regulator.c
index d18e5d8d2c..ec1dcb64b3 100644
--- a/drivers/power/regulator/gpio-regulator.c
+++ b/drivers/power/regulator/gpio-regulator.c
@@ -4,6 +4,7 @@
* Keerthy <j-keerthy@ti.com>
*/
+#include "regulator_common.h"
#include <common.h>
#include <fdtdec.h>
#include <errno.h>
@@ -18,6 +19,7 @@
DECLARE_GLOBAL_DATA_PTR;
struct gpio_regulator_platdata {
+ struct regulator_common_platdata common;
struct gpio_desc gpio; /* GPIO for regulator voltage control */
int states[GPIO_REGULATOR_MAX_STATES];
int voltages[GPIO_REGULATOR_MAX_STATES];
@@ -65,7 +67,7 @@ static int gpio_regulator_ofdata_to_platdata(struct udevice *dev)
j++;
}
- return 0;
+ return regulator_common_ofdata_to_platdata(dev, &dev_pdata->common, "enable-gpios");
}
static int gpio_regulator_get_value(struct udevice *dev)
@@ -116,9 +118,23 @@ static int gpio_regulator_set_value(struct udevice *dev, int uV)
return 0;
}
+static int gpio_regulator_get_enable(struct udevice *dev)
+{
+ struct gpio_regulator_platdata *dev_pdata = dev_get_platdata(dev);
+ return regulator_common_get_enable(dev, &dev_pdata->common);
+}
+
+static int gpio_regulator_set_enable(struct udevice *dev, bool enable)
+{
+ struct gpio_regulator_platdata *dev_pdata = dev_get_platdata(dev);
+ return regulator_common_set_enable(dev, &dev_pdata->common, enable);
+}
+
static const struct dm_regulator_ops gpio_regulator_ops = {
.get_value = gpio_regulator_get_value,
.set_value = gpio_regulator_set_value,
+ .get_enable = gpio_regulator_get_enable,
+ .set_enable = gpio_regulator_set_enable,
};
static const struct udevice_id gpio_regulator_ids[] = {