Hi Luca On Wed, 1 Feb 2023 at 17:07, Luca Weiss <luca@xxxxxxxxx> wrote: > > In some setups XSHUTDOWN is connected to DOVDD when it's unused, > therefore treat the reset gpio as optional. The binding doc [1] says that reset-gpios is a required property. Making it optional should therefore have a patch for the binding first, and then a patch updating the driver. Unfortunately my understanding is that means converting it to YAML as well due to the txt docs being frozen. I know the pain - I was doing exactly the same thing for ov7251 earlier today. I haven't run the dt schema checks or had them reviewed yet, but "media: dt-bindings: Convert ov7251.txt to YAML" and "media: dt-bindings: ov7251: Make enable-gpio optional" on [2] may be of help to you. Dave [1] https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/media/i2c/ov2685.txt#L10 [2] https://github.com/6by9/linux/commits/rpi-6.2.y-ov7251 > Reviewed-by: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx> > Signed-off-by: Luca Weiss <luca@xxxxxxxxx> > --- > drivers/media/i2c/ov2685.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/media/i2c/ov2685.c b/drivers/media/i2c/ov2685.c > index a3b524f15d89..a422f4c8a2eb 100644 > --- a/drivers/media/i2c/ov2685.c > +++ b/drivers/media/i2c/ov2685.c > @@ -734,7 +734,7 @@ static int ov2685_probe(struct i2c_client *client, > if (clk_get_rate(ov2685->xvclk) != OV2685_XVCLK_FREQ) > dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); > > - ov2685->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); > + ov2685->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); > if (IS_ERR(ov2685->reset_gpio)) { > dev_err(dev, "Failed to get reset-gpios\n"); > return -EINVAL; > > -- > 2.39.1 >
