[EXT] Re: [PATCH v2 2/2] drm/panel: Add support for Raydium RM67191 panel driver

Robert Chiras robert.chiras at nxp.com
Thu Jun 20 08:34:25 UTC 2019


On Mi, 2019-06-19 at 10:28 -0300, Fabio Estevam wrote:
> Caution: EXT Email
> 
> Hi Robert,
> 
> On Tue, Jun 18, 2019 at 10:31 AM Robert Chiras <robert.chiras at nxp.com
> > wrote:
> 
> > 
> > +static const struct display_timing rad_default_timing = {
> > +       .pixelclock = { 66000000, 132000000, 132000000 },
> > +       .hactive = { 1080, 1080, 1080 },
> > +       .hfront_porch = { 20, 20, 20 },
> > +       .hsync_len = { 2, 2, 2 },
> > +       .hback_porch = { 34, 34, 34 },
> > +       .vactive = { 1920, 1920, 1920 },
> > +       .vfront_porch = { 10, 10, 10 },
> > +       .vsync_len = { 2, 2, 2 },
> > +       .vback_porch = { 4, 4, 4 },
> Are you sure that the sync_len and porch parameters are the same for
> both 66MHz and 132MHz?
Probably they are not, since I didn't get this panel to work well with
66Hz. So I will just keep 132MHz, since these are the only timinings we
received from vendor.


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