Re: [PATCH v2] spi: stm32: disable device mode with st,stm32f4-spi compatible

[Valentin CARON]

Hi,

On 6/27/23 15:39, Krzysztof Kozlowski wrote:
> On 27/06/2023 14:39, Valentin Caron wrote:
> > STM32 SPI driver is not capable to handle device mode with stm32f4 soc.
> > Stop probing if this case happens, and print an error with involved
> > compatible.
> ...
>
> >   
> >   static const struct of_device_id stm32_spi_of_match[] = {
> > @@ -1798,8 +1802,16 @@ static int stm32_spi_probe(struct platform_device *pdev)
> >   	struct device_node *np = pdev->dev.of_node;
> >   	bool device_mode;
> >   	int ret;
> > +	const char *compatible =
> > +		of_match_device(pdev->dev.driver->of_match_table, &pdev->dev)->compatible;
> The goal was to replace it, so drop it.
Is is still needed for dev_err, so I can't
> dev_err(&pdev->dev, "spi-slave not yet supported with %s\n", 
compatible);
> > +	const struct stm32_spi_cfg *cfg = (const struct stm32_spi_cfg *)
> Why do you need the cast? To drop the const? Are you sure it is really
> needed?
Effectively, this cast is useless, I will drop it.
> > +		of_device_get_match_data(&pdev->dev);
> Best regards,
> Krzysztof

Thanks,
Valentin