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Subject[PATCH 11/19 v3] regulator: s5m8767: Pass descriptor instead of GPIO number
Date
Instead of passing a global GPIO number for the enable GPIO, pass
a descriptor looked up from the device tree node for the
regulator.

This regulator supports passing platform data, but enable/sleep
regulators are looked up from the device tree exclusively, so
we can need not touch other files.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v2->v3:
- Resending.
ChangeLog v1->v2:
- Rebase the patch on the other changes
- Collect Lee's ACK.
---
drivers/regulator/s5m8767.c | 26 +++++++++++++++-----------
include/linux/mfd/samsung/core.h | 4 +++-
2 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 4836947e1521..b8443a360646 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -13,6 +13,7 @@

#include <linux/err.h>
#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
@@ -459,15 +460,14 @@ static void s5m8767_regulator_config_ext_control(struct s5m8767_info *s5m8767,
return;
}

- if (!gpio_is_valid(rdata->ext_control_gpio)) {
+ if (!rdata->ext_control_gpiod) {
dev_warn(s5m8767->dev,
"ext-control for %s: GPIO not valid, ignoring\n",
- rdata->reg_node->name);
+ rdata->reg_node->name);
return;
}

- config->ena_gpio = rdata->ext_control_gpio;
- config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH;
+ config->ena_gpiod = rdata->ext_control_gpiod;
}

/*
@@ -577,8 +577,14 @@ static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
continue;
}

- rdata->ext_control_gpio = of_get_named_gpio(reg_np,
- "s5m8767,pmic-ext-control-gpios", 0);
+ rdata->ext_control_gpiod = devm_gpiod_get_from_of_node(&pdev->dev,
+ reg_np,
+ "s5m8767,pmic-ext-control-gpios",
+ 0,
+ GPIOD_OUT_HIGH,
+ "s5m8767");
+ if (IS_ERR(rdata->ext_control_gpiod))
+ return PTR_ERR(rdata->ext_control_gpiod);

rdata->id = i;
rdata->initdata = of_get_regulator_init_data(
@@ -954,10 +960,8 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
config.driver_data = s5m8767;
config.regmap = iodev->regmap_pmic;
config.of_node = pdata->regulators[i].reg_node;
- config.ena_gpio = -EINVAL;
- config.ena_gpio_flags = 0;
- config.ena_gpio_initialized = true;
- if (gpio_is_valid(pdata->regulators[i].ext_control_gpio))
+ config.ena_gpiod = NULL;
+ if (pdata->regulators[i].ext_control_gpiod)
s5m8767_regulator_config_ext_control(s5m8767,
&pdata->regulators[i], &config);

@@ -970,7 +974,7 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
return ret;
}

- if (gpio_is_valid(pdata->regulators[i].ext_control_gpio)) {
+ if (pdata->regulators[i].ext_control_gpiod) {
ret = s5m8767_enable_ext_control(s5m8767, rdev);
if (ret < 0) {
dev_err(s5m8767->dev,
diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
index 5a23dd4df432..28f4ae76271d 100644
--- a/include/linux/mfd/samsung/core.h
+++ b/include/linux/mfd/samsung/core.h
@@ -39,6 +39,8 @@
#define STEP_12_5_MV 12500
#define STEP_6_25_MV 6250

+struct gpio_desc;
+
enum sec_device_type {
S5M8751X,
S5M8763X,
@@ -151,7 +153,7 @@ struct sec_regulator_data {
int id;
struct regulator_init_data *initdata;
struct device_node *reg_node;
- int ext_control_gpio;
+ struct gpio_desc *ext_control_gpiod;
};

/*
--
2.17.0
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