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>

1 files changed, 12 insertions, 0 deletions

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 <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])) {