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Date: Fri, 8 Jul 2016 09:51:43 +0800 From: Yakir Yang <ykk@...k-chips.com> To: Doug Anderson <dianders@...omium.org> Cc: David Airlie <airlied@...ux.ie>, Thierry Reding <thierry.reding@...il.com>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Kumar Gala <galak@...eaurora.org>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Emil Velikov <emil.l.velikov@...il.com>, "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v3 4/6] drm/panel: simple: Add support for Samsung LSN122DL01-C01 2560x1600 panel Doug, On 06/14/2016 01:00 AM, Doug Anderson wrote: > Yakir, > > On Sat, Jun 11, 2016 at 7:56 PM, Yakir Yang <ykk@...k-chips.com> wrote: >> The Samsung LSN122DL01-C01 is an 12.2" 2560x1600 (WQXGA) TFT-LCD panel >> connected using eDP interfaces. >> >> Signed-off-by: Yakir Yang <ykk@...k-chips.com> >> --- >> Changes in v3: >> - Correct the size of panel_desc to active area 262mmx164mm (Emil, Stéphane) >> >> Changes in v2: None >> >> drivers/gpu/drm/panel/panel-simple.c | 25 +++++++++++++++++++++++++ >> 1 file changed, 25 insertions(+) >> >> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c >> index 2d40a21..17cc973 100644 >> --- a/drivers/gpu/drm/panel/panel-simple.c >> +++ b/drivers/gpu/drm/panel/panel-simple.c >> @@ -1246,6 +1246,28 @@ static const struct panel_desc qd43003c0_40 = { >> .bus_format = MEDIA_BUS_FMT_RGB888_1X24, >> }; >> >> +static const struct drm_display_mode samsung_lsn122dl01_c01_mode = { >> + .clock = 271560, >> + .hdisplay = 2560, >> + .hsync_start = 2560 + 48, >> + .hsync_end = 2560 + 48 + 32, >> + .htotal = 2560 + 48 + 32 + 80, >> + .vdisplay = 1600, >> + .vsync_start = 1600 + 2, >> + .vsync_end = 1600 + 2 + 5, >> + .vtotal = 1600 + 2 + 5 + 57, >> + .vrefresh = 60, >> +}; >> + >> +static const struct panel_desc samsung_lsn122dl01_c01 = { >> + .modes = &samsung_lsn122dl01_c01_mode, >> + .num_modes = 1, >> + .size = { >> + .width = 262, >> + .height = 164, > Earlier you said that the active area of this panel was: > >> Display area 262.656(H) X 164.16(V) (12.2”diagonal) > In other panels I looked at the EDID tended to round numbers, not > truncate them. For instance the Starry panel that I sent the patch > for says in the manual "262.7712 (H) x 164.232 (V)" but then the EDID > says "263 x 164". Ah, got it, done. Thanks, - Yakir > That would mean your width should be 263 mm, not 262 mm. > > -Doug > > >
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