103 lines
2.6 KiB
Diff
103 lines
2.6 KiB
Diff
From 3ce70d299ed0778c109df06face51166477c41ee Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Ond=C5=99ej=20Jirman?= <megi@xff.cz>
|
|
Date: Sun, 26 Jan 2020 00:28:10 +0100
|
|
Subject: [PATCH 044/391] media: ov5640: Don't powerup the sensor during driver
|
|
probe
|
|
|
|
It causes autofocus clicking during boot on some devices, and
|
|
it's enough to do it when turning on the sensor power by media
|
|
pipeline via s_power callback, later on.
|
|
|
|
Signed-off-by: Ondrej Jirman <megi@xff.cz>
|
|
---
|
|
drivers/media/i2c/ov5640.c | 46 ++++++++------------------------------
|
|
1 file changed, 9 insertions(+), 37 deletions(-)
|
|
|
|
diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
|
|
index 7f478f19b..9e8daaed2 100644
|
|
--- a/drivers/media/i2c/ov5640.c
|
|
+++ b/drivers/media/i2c/ov5640.c
|
|
@@ -2464,6 +2464,7 @@ static void ov5640_reset(struct ov5640_dev *sensor)
|
|
static int ov5640_set_power_on(struct ov5640_dev *sensor)
|
|
{
|
|
struct i2c_client *client = sensor->i2c_client;
|
|
+ u16 chip_id;
|
|
int ret;
|
|
|
|
ret = clk_prepare_enable(sensor->xclk);
|
|
@@ -2488,6 +2489,13 @@ static int ov5640_set_power_on(struct ov5640_dev *sensor)
|
|
if (ret)
|
|
goto power_off;
|
|
|
|
+ ret = ov5640_read_reg16(sensor, OV5640_REG_CHIP_ID, &chip_id);
|
|
+ if (ret) {
|
|
+ dev_err(&client->dev, "%s: failed to read chip identifier\n",
|
|
+ __func__);
|
|
+ goto power_off;
|
|
+ }
|
|
+
|
|
return 0;
|
|
|
|
power_off:
|
|
@@ -3791,28 +3799,6 @@ static int ov5640_get_regulators(struct ov5640_dev *sensor)
|
|
sensor->supplies);
|
|
}
|
|
|
|
-static int ov5640_check_chip_id(struct ov5640_dev *sensor)
|
|
-{
|
|
- struct i2c_client *client = sensor->i2c_client;
|
|
- int ret = 0;
|
|
- u16 chip_id;
|
|
-
|
|
- ret = ov5640_read_reg16(sensor, OV5640_REG_CHIP_ID, &chip_id);
|
|
- if (ret) {
|
|
- dev_err(&client->dev, "%s: failed to read chip identifier\n",
|
|
- __func__);
|
|
- return ret;
|
|
- }
|
|
-
|
|
- if (chip_id != 0x5640) {
|
|
- dev_err(&client->dev, "%s: wrong chip identifier, expected 0x5640, got 0x%x\n",
|
|
- __func__, chip_id);
|
|
- return -ENXIO;
|
|
- }
|
|
-
|
|
- return 0;
|
|
-}
|
|
-
|
|
static int ov5640_probe(struct i2c_client *client)
|
|
{
|
|
struct device *dev = &client->dev;
|
|
@@ -3910,27 +3896,13 @@ static int ov5640_probe(struct i2c_client *client)
|
|
if (ret)
|
|
goto entity_cleanup;
|
|
|
|
- ret = ov5640_sensor_resume(dev);
|
|
- if (ret) {
|
|
- dev_err(dev, "failed to power on\n");
|
|
- goto entity_cleanup;
|
|
- }
|
|
-
|
|
- pm_runtime_set_active(dev);
|
|
- pm_runtime_get_noresume(dev);
|
|
- pm_runtime_enable(dev);
|
|
-
|
|
- ret = ov5640_check_chip_id(sensor);
|
|
- if (ret)
|
|
- goto err_pm_runtime;
|
|
-
|
|
ret = v4l2_async_register_subdev_sensor(&sensor->sd);
|
|
if (ret)
|
|
goto err_pm_runtime;
|
|
|
|
+ pm_runtime_enable(dev);
|
|
pm_runtime_set_autosuspend_delay(dev, 1000);
|
|
pm_runtime_use_autosuspend(dev);
|
|
- pm_runtime_put_autosuspend(dev);
|
|
|
|
return 0;
|
|
|
|
--
|
|
2.35.3
|
|
|