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media: imx258: Fix getting clock frequency

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Obtain the clock frequency by reading the clock-frequency property if
there's no clock.

Fixes: 9fda25332c ("media: i2c: imx258: get clock from device properties and enable it via runtime PM")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Sakari Ailus 2021-08-16 15:08:59 +02:00 committed by Mauro Carvalho Chehab
parent 96d309a933
commit d170b0ea17
1 changed files with 6 additions and 6 deletions
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12
drivers/media/i2c/imx258.c
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@ -1260,18 +1260,18 @@ static int imx258_probe(struct i2c_client *client)
return -ENOMEM;
imx258->clk = devm_clk_get_optional(&client->dev, NULL);
if (IS_ERR(imx258->clk))
return dev_err_probe(&client->dev, PTR_ERR(imx258->clk),
"error getting clock\n");
if (!imx258->clk) {
dev_dbg(&client->dev,
"no clock provided, using clock-frequency property\n");
device_property_read_u32(&client->dev, "clock-frequency", &val);
if (val != IMX258_INPUT_CLOCK_FREQ)
return -EINVAL;
} else if (IS_ERR(imx258->clk)) {
return dev_err_probe(&client->dev, PTR_ERR(imx258->clk),
"error getting clock\n");
} else {
val = clk_get_rate(imx258->clk);
}
if (clk_get_rate(imx258->clk) != IMX258_INPUT_CLOCK_FREQ) {
if (val != IMX258_INPUT_CLOCK_FREQ) {
dev_err(&client->dev, "input clock frequency not supported\n");
return -EINVAL;
}