linux-kernel - Applied "regulator: max77686: Pass descriptor instead of GPIO number" to the regulator tree

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Message-Id: <20180517164137.B86AF44007E@finisterre.ee.mobilebroadband>
Date:   Thu, 17 May 2018 17:41:37 +0100 (BST)
From:   Mark Brown <broonie@...nel.org>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Krzysztof Kozlowski <krzk@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        linux-kernel@...r.kernel.org
Subject: Applied "regulator: max77686: Pass descriptor instead of GPIO number" to the regulator tree

The patch

   regulator: max77686: Pass descriptor instead of GPIO number

has been applied to the regulator tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From c89c00e2b8f034891d2550df5ba6fae39f3bf563 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@...aro.org>
Date: Mon, 14 May 2018 10:06:26 +0200
Subject: [PATCH] regulator: max77686: Pass descriptor instead of GPIO number

Instead of passing a global GPIO number, pass a descriptor looked
up from the device tree configuration node.

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>
Tested-by: Krzysztof Kozlowski <krzk@...nel.org>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
 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