[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20250906-sy7636-rsrc-v1-3-e2886a9763a7@kernel.org>
Date: Sat, 06 Sep 2025 11:09:14 +0200
From: Andreas Kemnade <akemnade@...nel.org>
To: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Alistair Francis <alistair@...stair23.me>,
Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
Andreas Kemnade <akemnade@...nel.org>
Subject: [PATCH 3/4] regulator: sy7636a: add gpios and input regulator
Initialize input regulator and gpios to proper values to have things
basically working as well as in the case when these things are
hardwired.
Signed-off-by: Andreas Kemnade <akemnade@...nel.org>
---
drivers/regulator/sy7636a-regulator.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/regulator/sy7636a-regulator.c b/drivers/regulator/sy7636a-regulator.c
index 27e3d939b7bb9..bd8739624c727 100644
--- a/drivers/regulator/sy7636a-regulator.c
+++ b/drivers/regulator/sy7636a-regulator.c
@@ -12,6 +12,7 @@
#include <linux/mfd/sy7636a.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regmap.h>
@@ -19,6 +20,8 @@
struct sy7636a_data {
struct regmap *regmap;
struct gpio_desc *pgood_gpio;
+ struct gpio_desc *en_gpio;
+ struct gpio_desc *vcom_en_gpio;
};
static int sy7636a_get_vcom_voltage_op(struct regulator_dev *rdev)
@@ -98,6 +101,29 @@ static int sy7636a_regulator_probe(struct platform_device *pdev)
data->regmap = regmap;
data->pgood_gpio = gdp;
+ ret = devm_regulator_get_enable_optional(&pdev->dev, "vin");
+ if (ret)
+ return dev_err_probe(&pdev->dev, ret,
+ "failed to get vin regulator\n");
+
+ data->en_gpio = devm_gpiod_get_optional(&pdev->dev, "en",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(data->en_gpio))
+ return dev_err_probe(&pdev->dev,
+ PTR_ERR(data->en_gpio),
+ "failed to get en gpio\n");
+
+ /* Let VCOM just follow the default power on sequence */
+ data->vcom_en_gpio = devm_gpiod_get_optional(&pdev->dev,
+ "vcom-en", GPIOD_OUT_LOW);
+ if (IS_ERR(data->vcom_en_gpio))
+ return dev_err_probe(&pdev->dev,
+ PTR_ERR(data->en_gpio),
+ "failed to get en gpio\n");
+
+ if (data->en_gpio)
+ usleep_range(2500, 4000);
+
platform_set_drvdata(pdev, data);
ret = regmap_write(regmap, SY7636A_REG_POWER_ON_DELAY_TIME, 0x0);
--
2.39.5
Powered by blists - more mailing lists