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Subject[PATCH 05/19 v3] regulator: max77686: Pass descriptor instead of GPIO number
Date
Instead of passing a global GPIO number, pass a descriptor looked
up from the device tree configuration node.

Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v2->v3:
- Name the regulator "max77686-regulator"
- Set the regulator to NULL on erroneous lookup, restoring the
old init data lookup behaviour.
ChangeLog v1->v2:
- Rebase the patch on the other changes.
---
drivers/regulator/max77686-regulator.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/regulator/max77686-regulator.c b/drivers/regulator/max77686-regulator.c
index c301f3733475..37f98a8350f0 100644
--- a/drivers/regulator/max77686-regulator.c
+++ b/drivers/regulator/max77686-regulator.c
@@ -25,8 +25,7 @@
#include <linux/kernel.h>
#include <linux/bug.h>
#include <linux/err.h>
-#include <linux/gpio.h>
-#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
@@ -90,6 +89,7 @@ enum max77686_ramp_rate {
};

struct max77686_data {
+ struct device *dev;
DECLARE_BITMAP(gpio_enabled, MAX77686_REGULATORS);

/* Array indexed by regulator id */
@@ -269,16 +269,20 @@ static int max77686_of_parse_cb(struct device_node *np,
case MAX77686_BUCK8:
case MAX77686_BUCK9:
case MAX77686_LDO20 ... MAX77686_LDO22:
- config->ena_gpio = of_get_named_gpio(np,
- "maxim,ena-gpios", 0);
- config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH;
- config->ena_gpio_initialized = true;
+ config->ena_gpiod = devm_gpiod_get_from_of_node(max77686->dev,
+ np,
+ "maxim,ena",
+ 0,
+ GPIOD_OUT_HIGH,
+ "max77686-regulator");
+ if (IS_ERR(config->ena_gpiod))
+ config->ena_gpiod = NULL;
break;
default:
return 0;
}

- if (gpio_is_valid(config->ena_gpio)) {
+ if (config->ena_gpiod) {
set_bit(desc->id, max77686->gpio_enabled);

return regmap_update_bits(config->regmap, desc->enable_reg,
@@ -521,6 +525,7 @@ static int max77686_pmic_probe(struct platform_device *pdev)
if (!max77686)
return -ENOMEM;

+ max77686->dev = &pdev->dev;
config.dev = iodev->dev;
config.regmap = iodev->regmap;
config.driver_data = max77686;
--
2.17.0
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