Re: [PATCH 22/36] drm/atmel-hlcdc: use bpp instead of cpp for drm_format_info

From: Sam Ravnborg
Date: Mon Sep 23 2019 - 13:31:14 EST


Hi Sandy.

Thanks for taking care of this, but...

On Mon, Sep 23, 2019 at 08:51:45PM +0800, Sandy Huang wrote:
> cpp[BytePerPlane] can't describe the 10bit data format correctly,
> So we use bpp[BitPerPlane] to instead cpp.
>
> Signed-off-by: Sandy Huang <hjc@xxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> index 89f5a75..ab7d423 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> @@ -644,7 +644,7 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p,
> int xdiv = i ? fb->format->hsub : 1;
> int ydiv = i ? fb->format->vsub : 1;
>
> - state->bpp[i] = fb->format->cpp[i];
> + state->bpp[i] = fb->format->bpp[i] / 8;
> if (!state->bpp[i])
> return -EINVAL;

Awaiting conclusion on Daniels comment on PATCH 1 and has dropped this
patch for now.
And please address the concerns Rob has about bisectability in your
cover letter for v2.

Sam