This is a note to let you know that I've just added the patch titled
media: i2c: ds90ub913: Add error handling to ub913_hw_init()
to the 6.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
media-i2c-ds90ub913-add-error-handling-to-ub913_hw_i.patch
and it can be found in the queue-6.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b6a6817fad21a86aefd887221722fc821b628d0c
Author: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
Date: Fri Dec 6 10:26:49 2024 +0200
media: i2c: ds90ub913: Add error handling to ub913_hw_init()
[ Upstream commit acd8f58d7a3bce0fbd3263961cd09555c00464ba ]
Add error handling to ub913_hw_init() using a new helper function,
ub913_update_bits().
Reported-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Closes: https://lore.kernel.org/all/Zv40EQSR__JDN_0M@kekkonen.localdomain/
Reviewed-by: Jai Luthra <jai.luthra@xxxxxxxxxxxxxxxx>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/media/i2c/ds90ub913.c b/drivers/media/i2c/ds90ub913.c
index 9f01950a0ca33..fd2d2d5272bfb 100644
--- a/drivers/media/i2c/ds90ub913.c
+++ b/drivers/media/i2c/ds90ub913.c
@@ -8,6 +8,7 @@
* Copyright (c) 2023 Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
*/
+#include <linux/bitfield.h>
#include <linux/clk-provider.h>
#include <linux/clk.h>
#include <linux/delay.h>
@@ -146,6 +147,19 @@ static int ub913_write(const struct ub913_data *priv, u8 reg, u8 val)
return ret;
}
+static int ub913_update_bits(const struct ub913_data *priv, u8 reg, u8 mask,
+ u8 val)
+{
+ int ret;
+
+ ret = regmap_update_bits(priv->regmap, reg, mask, val);
+ if (ret < 0)
+ dev_err(&priv->client->dev,
+ "Cannot update register 0x%02x %d!\n", reg, ret);
+
+ return ret;
+}
+
/*
* GPIO chip
*/
@@ -733,10 +747,13 @@ static int ub913_hw_init(struct ub913_data *priv)
if (ret)
return dev_err_probe(dev, ret, "i2c master init failed\n");
- ub913_read(priv, UB913_REG_GENERAL_CFG, &v);
- v &= ~UB913_REG_GENERAL_CFG_PCLK_RISING;
- v |= priv->pclk_polarity_rising ? UB913_REG_GENERAL_CFG_PCLK_RISING : 0;
- ub913_write(priv, UB913_REG_GENERAL_CFG, v);
+ ret = ub913_update_bits(priv, UB913_REG_GENERAL_CFG,
+ UB913_REG_GENERAL_CFG_PCLK_RISING,
+ FIELD_PREP(UB913_REG_GENERAL_CFG_PCLK_RISING,
+ priv->pclk_polarity_rising));
+
+ if (ret)
+ return ret;
return 0;
}
