diff options
| author | Tommaso Merciai <tommaso.merciai@amarulasolutions.com> | 2022-07-13 16:05:04 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-07-15 15:33:08 +0100 |
| commit | 88b0c212e358444b0e0710163c0f8d75a6296561 (patch) | |
| tree | 09a6d64a9ed939b8d4c4b3316503e82e008866d1 /drivers/media | |
| parent | 8a47d09eda479912c3518e99636b5de8665f33c0 (diff) | |
| download | linux-88b0c212e358444b0e0710163c0f8d75a6296561.tar.bz2 | |
media: ov5693: add support for acpi clock-frequency prop
Add support for ACPI-based platforms that specify the clock frequency by
using the "clock-frequency" property instead of specifying a clock
provider reference
Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/i2c/ov5693.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/media/i2c/ov5693.c b/drivers/media/i2c/ov5693.c index d2adc5513a21..701468267f20 100644 --- a/drivers/media/i2c/ov5693.c +++ b/drivers/media/i2c/ov5693.c @@ -1408,13 +1408,25 @@ static int ov5693_probe(struct i2c_client *client) v4l2_i2c_subdev_init(&ov5693->sd, client, &ov5693_ops); - ov5693->xvclk = devm_clk_get(&client->dev, "xvclk"); - if (IS_ERR(ov5693->xvclk)) { - dev_err(&client->dev, "Error getting clock\n"); - return PTR_ERR(ov5693->xvclk); + ov5693->xvclk = devm_clk_get_optional(&client->dev, "xvclk"); + if (IS_ERR(ov5693->xvclk)) + return dev_err_probe(&client->dev, PTR_ERR(ov5693->xvclk), + "failed to get xvclk: %ld\n", + PTR_ERR(ov5693->xvclk)); + + if (ov5693->xvclk) { + xvclk_rate = clk_get_rate(ov5693->xvclk); + } else { + ret = fwnode_property_read_u32(dev_fwnode(&client->dev), + "clock-frequency", + &xvclk_rate); + + if (ret) { + dev_err(&client->dev, "can't get clock frequency"); + return ret; + } } - xvclk_rate = clk_get_rate(ov5693->xvclk); if (xvclk_rate != OV5693_XVCLK_FREQ) dev_warn(&client->dev, "Found clk freq %u, expected %u\n", xvclk_rate, OV5693_XVCLK_FREQ); |