Hi Greg,

> -----Original Message-----
> From: Greg KH <gre...@linuxfoundation.org>
> Sent: Wednesday, March 11, 2020 8:22 PM
> To: Eugeniy Paltsev <palt...@synopsys.com>
> Cc: dri-de...@lists.freedesktop.org; Alexey Brodkin <abrod...@synopsys.com>; 
> linux-snps-
> a...@lists.infradead.org; linux-ker...@vger.kernel.org; David Airlie 
> <airl...@linux.ie>; Daniel Vetter
> <dan...@ffwll.ch>; sta...@vger.kernel.org
> Subject: Re: [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.palt...@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://urldefense.proofpoint.com/v2/url?u=https-
> 3A__www.kernel.org_doc_html_latest_process_stable-2Dkernel-
> 2Drules.html&d=DwIBAg&c=DPL6_X_6JkXFx7AXWqB0tg&r=lqdeeSSEes0GFDDl656eViXO7breS55ytWkhpk5R81I&m=oXPD1Sz
> FBs-0-4u24Ah1rK1Y65Fma8tJZix0Jih-yqY&s=WTVW1dC7E2oD0muPxtNd9KAHzwIZwEU9jGuCHWx1iQk&e=
> for how to do this properly.
> 
> </formletter>

Thanks for the comment. I'll add "Cc: sta...@vger.kernel.org" tag to the
patch on committing it to my maintainer tree so one the patch makes its way
up to the Linus' tree you'll get notified as usual.

-Alexey

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