[PATCH V11 4/9] mfd: pm8008: Add reset-gpios

From: Satya Priya
Date: Thu May 05 2022 - 05:27:21 EST


Add the reset-gpio toggling in the pm8008_probe() to bring
pm8008 chip out of reset instead of doing it in DT node using
"output-high" property.

Signed-off-by: Satya Priya <quic_c_skakit@xxxxxxxxxxx>
---
Changes in V11:
- Use local variable for reset_gpios as it is not used outside of probe.
- Use GPIOD_OUT_LOW flag to initialize the gpio and remove below line
as it is not required "gpiod_set_value(chip->reset_gpio, 1);".

Changes in V10:
- This has been split from [V9,3/6] as per comments here [1]
[1] https://patchwork.kernel.org/project/linux-arm-msm/patch/1649166633-25872-4-git-send-email-quic_c_skakit@xxxxxxxxxxx/#24803409

drivers/mfd/qcom-pm8008.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/mfd/qcom-pm8008.c b/drivers/mfd/qcom-pm8008.c
index c472d7f..e7c3b32 100644
--- a/drivers/mfd/qcom-pm8008.c
+++ b/drivers/mfd/qcom-pm8008.c
@@ -4,6 +4,7 @@
*/

#include <linux/bitops.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
@@ -221,6 +222,7 @@ static int pm8008_probe(struct i2c_client *client)
{
int rc;
struct pm8008_data *chip;
+ struct gpio_desc *reset_gpio;

chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
@@ -239,6 +241,10 @@ static int pm8008_probe(struct i2c_client *client)
dev_err(chip->dev, "Failed to probe irq periphs: %d\n", rc);
}

+ reset_gpio = devm_gpiod_get(chip->dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(reset_gpio))
+ return PTR_ERR(reset_gpio);
+
return devm_of_platform_populate(chip->dev);
}

--
2.7.4