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SubjectRe: [PATCH] DRM: ARC: PGU: interlaced mode not supported
On Wed, Mar 11, 2020 at 04:13:10PM +0300, Eugeniy Paltsev wrote:
> Filter out interlaced modes as they are not supported by ARC PGU
> hardware.
>
> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
> ---
> drivers/gpu/drm/arc/arcpgu_crtc.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/arc/arcpgu_crtc.c b/drivers/gpu/drm/arc/arcpgu_crtc.c
> index 8ae1e1f97a73..c854066d4c75 100644
> --- a/drivers/gpu/drm/arc/arcpgu_crtc.c
> +++ b/drivers/gpu/drm/arc/arcpgu_crtc.c
> @@ -67,6 +67,9 @@ static enum drm_mode_status arc_pgu_crtc_mode_valid(struct drm_crtc *crtc,
> long rate, clk_rate = mode->clock * 1000;
> long diff = clk_rate / 200; /* +-0.5% allowed by HDMI spec */
>
> + if (mode->flags & DRM_MODE_FLAG_INTERLACE)
> + return MODE_NO_INTERLACE;
> +
> rate = clk_round_rate(arcpgu->clk, clk_rate);
> if ((max(rate, clk_rate) - min(rate, clk_rate) < diff) && (rate > 0))
> return MODE_OK;
> --
> 2.21.1
>

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>

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