105 lines
2.9 KiB
Diff
105 lines
2.9 KiB
Diff
|
From a199b241669dcf78965b279a8ee9f587658604e6 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Ondrej Jirman <megi@xff.cz>
|
||
|
|
Date: Sun, 30 Apr 2023 18:49:36 +0200
|
||
|
|
Subject: [PATCH 333/464] media: i2c: imx258: Add support for power supplies
|
||
|
|
|
||
|
|
They were documented in DT, but not implemented.
|
||
|
|
|
||
|
|
Signed-off-by: Ondrej Jirman <megi@xff.cz>
|
||
|
|
---
|
||
|
|
drivers/media/i2c/imx258.c | 39 ++++++++++++++++++++++++++++++++++++--
|
||
|
|
1 file changed, 37 insertions(+), 2 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
|
||
|
|
index 1b4e6b0e4838..31057ab945de 100644
|
||
|
|
--- a/drivers/media/i2c/imx258.c
|
||
|
|
+++ b/drivers/media/i2c/imx258.c
|
||
|
|
@@ -603,6 +603,15 @@ static const struct imx258_mode supported_modes[] = {
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
+/* regulator supplies */
|
||
|
|
+static const char * const imx258_supply_names[] = {
|
||
|
|
+ "vana", /* Analog (2.8V) supply */
|
||
|
|
+ "vdig", /* Digital Core (1.5V) supply */
|
||
|
|
+ "vif", /* Digital I/O (1.8V) supply */
|
||
|
|
+};
|
||
|
|
+
|
||
|
|
+#define IMX258_SUPPLY_COUNT ARRAY_SIZE(imx258_supply_names)
|
||
|
|
+
|
||
|
|
struct imx258 {
|
||
|
|
struct v4l2_subdev sd;
|
||
|
|
struct media_pad pad;
|
||
|
|
@@ -617,6 +626,7 @@ struct imx258 {
|
||
|
|
|
||
|
|
struct gpio_desc *pwdn_gpio;
|
||
|
|
struct gpio_desc *reset_gpio;
|
||
|
|
+ struct regulator_bulk_data supplies[IMX258_SUPPLY_COUNT];
|
||
|
|
|
||
|
|
/* Current mode */
|
||
|
|
const struct imx258_mode *cur_mode;
|
||
|
|
@@ -1016,11 +1026,26 @@ static int imx258_power_on(struct device *dev)
|
||
|
|
struct imx258 *imx258 = to_imx258(sd);
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
+ ret = regulator_bulk_enable(IMX258_SUPPLY_COUNT, imx258->supplies);
|
||
|
|
+ if (ret) {
|
||
|
|
+ dev_err(dev, "failed to enable regulators\n");
|
||
|
|
+ return ret;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ mdelay(20);
|
||
|
|
+
|
||
|
|
gpiod_set_value_cansleep(imx258->pwdn_gpio, 0);
|
||
|
|
|
||
|
|
+ mdelay(5);
|
||
|
|
+
|
||
|
|
ret = clk_prepare_enable(imx258->clk);
|
||
|
|
- if (ret)
|
||
|
|
+ if (ret) {
|
||
|
|
dev_err(dev, "failed to enable clock\n");
|
||
|
|
+ regulator_bulk_disable(IMX258_SUPPLY_COUNT, imx258->supplies);
|
||
|
|
+ return ret;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ usleep_range(1000, 2000);
|
||
|
|
|
||
|
|
gpiod_set_value_cansleep(imx258->reset_gpio, 0);
|
||
|
|
|
||
|
|
@@ -1039,6 +1064,8 @@ static int imx258_power_off(struct device *dev)
|
||
|
|
gpiod_set_value_cansleep(imx258->reset_gpio, 1);
|
||
|
|
gpiod_set_value_cansleep(imx258->pwdn_gpio, 1);
|
||
|
|
|
||
|
|
+ regulator_bulk_disable(IMX258_SUPPLY_COUNT, imx258->supplies);
|
||
|
|
+
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
@@ -1289,7 +1316,7 @@ static void imx258_free_controls(struct imx258 *imx258)
|
||
|
|
static int imx258_probe(struct i2c_client *client)
|
||
|
|
{
|
||
|
|
struct imx258 *imx258;
|
||
|
|
- int ret;
|
||
|
|
+ int ret, i;
|
||
|
|
u32 val = 0;
|
||
|
|
|
||
|
|
imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL);
|
||
|
|
@@ -1316,6 +1343,14 @@ static int imx258_probe(struct i2c_client *client)
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
+ for (i = 0; i < IMX258_SUPPLY_COUNT; i++)
|
||
|
|
+ imx258->supplies[i].supply = imx258_supply_names[i];
|
||
|
|
+ ret = devm_regulator_bulk_get(&client->dev,
|
||
|
|
+ IMX258_SUPPLY_COUNT,
|
||
|
|
+ imx258->supplies);
|
||
|
|
+ if (ret)
|
||
|
|
+ return dev_err_probe(&client->dev, ret, "Failed to get supplies\n");
|
||
|
|
+
|
||
|
|
/* request optional power down pin */
|
||
|
|
imx258->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "powerdown",
|
||
|
|
GPIOD_OUT_HIGH);
|
||
|
|
--
|
||
|
|
2.34.1
|
||
|
|
|