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Message-ID: <20241018153230.235647-4-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Fri, 18 Oct 2024 16:32:23 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Hans Verkuil <hverkuil-cisco@...all.nl>
Cc: linux-media@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-renesas-soc@...r.kernel.org,
Prabhakar <prabhakar.csengg@...il.com>,
Biju Das <biju.das.jz@...renesas.com>,
Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v3 03/10] media: i2c: ov5645: Replace dev_err with dev_err_probe in probe function
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Refactor error handling in the ov5645_probe() function by replacing
multiple dev_err() calls with dev_err_probe().
- Note that during this process, the error string "external clock
frequency %u is not supported" was replaced with "unsupported xclk
frequency %u" to ensure it wraps at 80 columns.
- Additionally, the error string for control initialization failure was
changed from "%s: control initialization error %d\n" to "failed to add
controls\n" as there is no need to print the function name and error code
in the string, since dev_err_probe() already provides this information.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
drivers/media/i2c/ov5645.c | 82 +++++++++++++++++---------------------
1 file changed, 36 insertions(+), 46 deletions(-)
diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c
index d344d3447a95..520afd3d2aa3 100644
--- a/drivers/media/i2c/ov5645.c
+++ b/drivers/media/i2c/ov5645.c
@@ -1076,51 +1076,44 @@ static int ov5645_probe(struct i2c_client *client)
ov5645->dev = dev;
endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1);
- if (!endpoint) {
- dev_err(dev, "endpoint node not found\n");
- return -EINVAL;
- }
+ if (!endpoint)
+ return dev_err_probe(dev, -EINVAL,
+ "endpoint node not found\n");
ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
&ov5645->ep);
of_node_put(endpoint);
- if (ret < 0) {
- dev_err(dev, "parsing endpoint node failed\n");
- return ret;
- }
+ if (ret < 0)
+ return dev_err_probe(dev, ret,
+ "parsing endpoint node failed\n");
- if (ov5645->ep.bus_type != V4L2_MBUS_CSI2_DPHY) {
- dev_err(dev, "invalid bus type, must be CSI2\n");
- return -EINVAL;
- }
+ if (ov5645->ep.bus_type != V4L2_MBUS_CSI2_DPHY)
+ return dev_err_probe(dev, -EINVAL,
+ "invalid bus type, must be CSI2\n");
/* get system clock (xclk) */
ov5645->xclk = devm_clk_get(dev, NULL);
- if (IS_ERR(ov5645->xclk)) {
- dev_err(dev, "could not get xclk");
- return PTR_ERR(ov5645->xclk);
- }
+ if (IS_ERR(ov5645->xclk))
+ return dev_err_probe(dev, PTR_ERR(ov5645->xclk),
+ "could not get xclk");
ret = of_property_read_u32(dev->of_node, "clock-frequency", &xclk_freq);
- if (ret) {
- dev_err(dev, "could not get xclk frequency\n");
- return ret;
- }
+ if (ret)
+ return dev_err_probe(dev, ret,
+ "could not get xclk frequency\n");
/* external clock must be 24MHz, allow 1% tolerance */
- if (xclk_freq < 23760000 || xclk_freq > 24240000) {
- dev_err(dev, "external clock frequency %u is not supported\n",
- xclk_freq);
- return -EINVAL;
- }
+ if (xclk_freq < 23760000 || xclk_freq > 24240000)
+ return dev_err_probe(dev, -EINVAL,
+ "unsupported xclk frequency %u\n",
+ xclk_freq);
ret = clk_set_rate(ov5645->xclk, xclk_freq);
- if (ret) {
- dev_err(dev, "could not set xclk frequency\n");
- return ret;
- }
+ if (ret)
+ return dev_err_probe(dev, ret,
+ "could not set xclk frequency\n");
for (i = 0; i < OV5645_NUM_SUPPLIES; i++)
ov5645->supplies[i].supply = ov5645_supply_name[i];
@@ -1131,16 +1124,14 @@ static int ov5645_probe(struct i2c_client *client)
return ret;
ov5645->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
- if (IS_ERR(ov5645->enable_gpio)) {
- dev_err(dev, "cannot get enable gpio\n");
- return PTR_ERR(ov5645->enable_gpio);
- }
+ if (IS_ERR(ov5645->enable_gpio))
+ return dev_err_probe(dev, PTR_ERR(ov5645->enable_gpio),
+ "cannot get enable gpio\n");
ov5645->rst_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
- if (IS_ERR(ov5645->rst_gpio)) {
- dev_err(dev, "cannot get reset gpio\n");
- return PTR_ERR(ov5645->rst_gpio);
- }
+ if (IS_ERR(ov5645->rst_gpio))
+ return dev_err_probe(dev, PTR_ERR(ov5645->rst_gpio),
+ "cannot get reset gpio\n");
mutex_init(&ov5645->power_lock);
@@ -1177,9 +1168,8 @@ static int ov5645_probe(struct i2c_client *client)
ov5645->sd.ctrl_handler = &ov5645->ctrls;
if (ov5645->ctrls.error) {
- dev_err(dev, "%s: control initialization error %d\n",
- __func__, ov5645->ctrls.error);
ret = ov5645->ctrls.error;
+ dev_err_probe(dev, ret, "failed to add controls\n");
goto free_ctrl;
}
@@ -1193,7 +1183,7 @@ static int ov5645_probe(struct i2c_client *client)
ret = media_entity_pads_init(&ov5645->sd.entity, 1, &ov5645->pad);
if (ret < 0) {
- dev_err(dev, "could not register media entity\n");
+ dev_err_probe(dev, ret, "could not register media entity\n");
goto free_ctrl;
}
@@ -1203,14 +1193,14 @@ static int ov5645_probe(struct i2c_client *client)
ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_HIGH, &chip_id_high);
if (ret < 0 || chip_id_high != OV5645_CHIP_ID_HIGH_BYTE) {
- dev_err(dev, "could not read ID high\n");
ret = -ENODEV;
+ dev_err_probe(dev, ret, "could not read ID high\n");
goto power_down;
}
ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_LOW, &chip_id_low);
if (ret < 0 || chip_id_low != OV5645_CHIP_ID_LOW_BYTE) {
- dev_err(dev, "could not read ID low\n");
ret = -ENODEV;
+ dev_err_probe(dev, ret, "could not read ID low\n");
goto power_down;
}
@@ -1219,24 +1209,24 @@ static int ov5645_probe(struct i2c_client *client)
ret = ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL,
&ov5645->aec_pk_manual);
if (ret < 0) {
- dev_err(dev, "could not read AEC/AGC mode\n");
ret = -ENODEV;
+ dev_err_probe(dev, ret, "could not read AEC/AGC mode\n");
goto power_down;
}
ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG20,
&ov5645->timing_tc_reg20);
if (ret < 0) {
- dev_err(dev, "could not read vflip value\n");
ret = -ENODEV;
+ dev_err_probe(dev, ret, "could not read vflip value\n");
goto power_down;
}
ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG21,
&ov5645->timing_tc_reg21);
if (ret < 0) {
- dev_err(dev, "could not read hflip value\n");
ret = -ENODEV;
+ dev_err_probe(dev, ret, "could not read hflip value\n");
goto power_down;
}
@@ -1248,7 +1238,7 @@ static int ov5645_probe(struct i2c_client *client)
ret = v4l2_async_register_subdev(&ov5645->sd);
if (ret < 0) {
- dev_err(dev, "could not register v4l2 device\n");
+ dev_err_probe(dev, ret, "could not register v4l2 device\n");
goto err_pm_runtime;
}
--
2.43.0
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