Re: [PATCH v2 01/10] iio: adc: mcp3911: correct "microchip,device-addr" property

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On Sat, 25 Jun 2022 12:38:44 +0200
Marcus Folkesson <marcus.folkesson@xxxxxxxxx> wrote:

> Go for the right property name that is documented in the bindings.
> 
> Signed-off-by: Marcus Folkesson <marcus.folkesson@xxxxxxxxx>
Hi Marcus,

Series with more than 1 or 2 patches should always have a cover letter
(git format-patch --cover-letter) to provide some overview information
and allow for general comments on the series.

Also, whilst I know you are keen to move forwards quickly it is usually
a good idea to give more than 2 days for all reviews to come in on a series
and discussion of any questions to finish.

For instance, I just replied to your question to Andy on patch 2 and
that basically says your patch 2 in v2 is taking the wrong approach.
If you'd waited a few more days you'd have save on the noise by resolving
that before sending more patches.

Thanks,

Jonathan


> ---
> 
> Notes:
>     v2:
>         - Fallback to "device-addr" due to compatibility (Andy Shevchenko)
> 
>  drivers/iio/adc/mcp3911.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c
> index 1cb4590fe412..c5a0f19d7834 100644
> --- a/drivers/iio/adc/mcp3911.c
> +++ b/drivers/iio/adc/mcp3911.c
> @@ -208,7 +208,13 @@ static int mcp3911_config(struct mcp3911 *adc)
>  	u32 configreg;
>  	int ret;
>  
> -	device_property_read_u32(dev, "device-addr", &adc->dev_addr);
> +	ret = device_property_read_u32(dev, "microchip,device-addr", &adc->dev_addr);
> +
> +	/* Fallback to "device-addr" due to historical mismatch between
> +	 * dt-bindings and implementation
> +	 */
> +	if (ret)
> +		device_property_read_u32(dev, "device-addr", &adc->dev_addr);
>  	if (adc->dev_addr > 3) {
>  		dev_err(&adc->spi->dev,
>  			"invalid device address (%i). Must be in range 0-3.\n",




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