2020-08-06 16:53:37

by Raag Jadav

[permalink] [raw]
Subject: [PATCH v2] media: ov7740: use SCCB regmap

Make use of SCCB APIs for regmap operations.
Remove i2c_check_functionality as devm_regmap_init_sccb
does it for us.

Signed-off-by: Raag Jadav <[email protected]>
---
Changes since v1:
- Changed commit message.
- Added SCCB config for ov7740.

drivers/media/i2c/Kconfig | 2 +-
drivers/media/i2c/ov7740.c | 10 +---------
2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index da11036..c7d5722 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -1001,7 +1001,7 @@ config VIDEO_OV7670
config VIDEO_OV7740
tristate "OmniVision OV7740 sensor support"
depends on I2C && VIDEO_V4L2
- select REGMAP_I2C
+ select REGMAP_SCCB
help
This is a Video4Linux2 sensor driver for the OmniVision
OV7740 VGA camera sensor.
diff --git a/drivers/media/i2c/ov7740.c b/drivers/media/i2c/ov7740.c
index 732655f..5832461 100644
--- a/drivers/media/i2c/ov7740.c
+++ b/drivers/media/i2c/ov7740.c
@@ -1068,13 +1068,6 @@ static int ov7740_probe(struct i2c_client *client)
struct v4l2_subdev *sd;
int ret;

- if (!i2c_check_functionality(client->adapter,
- I2C_FUNC_SMBUS_BYTE_DATA)) {
- dev_err(&client->dev,
- "OV7740: I2C-Adapter doesn't support SMBUS\n");
- return -EIO;
- }
-
ov7740 = devm_kzalloc(&client->dev, sizeof(*ov7740), GFP_KERNEL);
if (!ov7740)
return -ENOMEM;
@@ -1091,7 +1084,7 @@ static int ov7740_probe(struct i2c_client *client)
if (ret)
return ret;

- ov7740->regmap = devm_regmap_init_i2c(client, &ov7740_regmap_config);
+ ov7740->regmap = devm_regmap_init_sccb(client, &ov7740_regmap_config);
if (IS_ERR(ov7740->regmap)) {
ret = PTR_ERR(ov7740->regmap);
dev_err(&client->dev, "Failed to allocate register map: %d\n",
@@ -1100,7 +1093,6 @@ static int ov7740_probe(struct i2c_client *client)
}

sd = &ov7740->subdev;
- client->flags |= I2C_CLIENT_SCCB;
v4l2_i2c_subdev_init(sd, client, &ov7740_subdev_ops);

#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
--
2.7.4