Re: [PATCH 3/8] backlight: ili922x: Add missing kerneldoc descriptions for CHECK_FREQ_REG() args

Daniel Thompson
2020-06-25T09:40:59Z

On Wed, Jun 24, 2020 at 03:57:16PM +0100, Lee Jones wrote:
> Kerneldoc syntax is used, but not complete. Descriptions required.
>
> Prevents warnings like:
>
> drivers/video/backlight/ili922x.c:116: warning: Function parameter or member 's' not described in 'CHECK_FREQ_REG'
> drivers/video/backlight/ili922x.c:116: warning: Function parameter or member 'x' not described in 'CHECK_FREQ_REG'
>
> Cc: <stable@vger.kernel.org>
> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> Cc: Software Engineering <sbabic@denx.de>
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---
> drivers/video/backlight/ili922x.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/video/backlight/ili922x.c b/drivers/video/backlight/ili922x.c
> index 9c5aa3fbb2842..8cb4b9d3c3bba 100644
> --- a/drivers/video/backlight/ili922x.c
> +++ b/drivers/video/backlight/ili922x.c
> @@ -107,6 +107,8 @@
> * lower frequency when the registers are read/written.
> * The macro sets the frequency in the spi_transfer structure if
> * the frequency exceeds the maximum value.
> + * @s: pointer to controller side proxy for an SPI slave device

What's wrong with "a pointer to an SPI device"?

I am aware, having looked it up to find out what the above actually
means, that this is how struct spi_device is described in its own kernel
doc but quoting at that level of detail of both overkill and confusing.

Daniel.

> + * @x: pointer to the read/write buffer pair
> */
> #define CHECK_FREQ_REG(s, x) \
> do { \
> --
> 2.25.1
>