Revert "regulator: pca9450: Add SD_VSEL GPIO for LDO5"

This reverts commit 8c67a11bae889f51fe5054364c3c789dfae3ad73.

It turns out that all boards using the PCA9450 actually have the
SD_VSEL input connected to the VSELECT signal of the SoCs SD/MMC
interface or use a fixed level.

The assumptions on which this was implemented were wrong. There
is no need for a GPIO-only-based approach and keeping this will
cause confusion and lead people to implement non-standard setups.

All in-tree users of this have been migrated and we can savely
remove this now and allow for a more future-proof approach
of syncing the actual status of SD_VSEL and the PMIC driver.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Link: https://patch.msgid.link/20241218152842.97483-4-frieder@fris.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/pca9450-regulator.c b/drivers/regulator/pca9450-regulator.c
index faa6b79c27d75f80d6f6a6b3e4f593a94dc01e12..9e5e81a9315f608782755ea54b3295298a992874 100644 (file)
--- a/drivers/regulator/pca9450-regulator.c
+++ b/drivers/regulator/pca9450-regulator.c
@@ -5,7 +5,6 @@
  */
 
 #include <linux/err.h>
-#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
@@ -32,7 +31,6 @@ struct pca9450_regulator_desc {
 struct pca9450 {
        struct device *dev;
        struct regmap *regmap;
-       struct gpio_desc *sd_vsel_gpio;
        enum pca9450_chip_type type;
        unsigned int rcnt;
        int irq;
@@ -1031,17 +1029,6 @@ static int pca9450_i2c_probe(struct i2c_client *i2c)
                                             "Failed to enable I2C level translator\n");
        }
 
-       /*
-        * The driver uses the LDO5CTRL_H register to control the LDO5 regulator.
-        * This is only valid if the SD_VSEL input of the PMIC is high. Let's
-        * check if the pin is available as GPIO and set it to high.
-        */
-       pca9450->sd_vsel_gpio = gpiod_get_optional(pca9450->dev, "sd-vsel", GPIOD_OUT_HIGH);
-
-       if (IS_ERR(pca9450->sd_vsel_gpio))
-               return dev_err_probe(&i2c->dev, PTR_ERR(pca9450->sd_vsel_gpio),
-                                    "Failed to get SD_VSEL GPIO\n");
-
        dev_info(&i2c->dev, "%s probed.\n",
                type == PCA9450_TYPE_PCA9450A ? "pca9450a" :
                (type == PCA9450_TYPE_PCA9451A ? "pca9451a" : "pca9450bc"));