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