On Mon, Dec 02, 2013 at 04:39:26PM +0100, Marek Vasut wrote: > Add DRM flags for the LCD display clock polarity so the pixelclk-active DT > property can be properly handled by drivers using the DRM API. > > Signed-off-by: Marek Vasut <marex@xxxxxxx> > Cc: Dave Airlie <airlied@xxxxxxxxx> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> > Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > Cc: Shawn Guo <shawn.guo@xxxxxxxxxx> > --- > drivers/gpu/drm/drm_modes.c | 5 +++++ > include/uapi/drm/drm_mode.h | 3 +++ > 2 files changed, 8 insertions(+) > > diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c > index 85071a1..d1f3bfc 100644 > --- a/drivers/gpu/drm/drm_modes.c > +++ b/drivers/gpu/drm/drm_modes.c > @@ -537,6 +537,11 @@ int drm_display_mode_from_videomode(const struct videomode *vm, > dmode->flags |= DRM_MODE_FLAG_DBLSCAN; > if (vm->flags & DISPLAY_FLAGS_DOUBLECLK) > dmode->flags |= DRM_MODE_FLAG_DBLCLK; > + if (vm->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE) > + dmode->flags |= DRM_MODE_FLAG_PIXELCLK_PPOL; > + else if (vm->flags & DISPLAY_FLAGS_PIXDATA_NEGEDGE) > + dmode->flags |= DRM_MODE_FLAG_PIXELCLK_NPOL; > + > drm_mode_set_name(dmode); > > return 0; > diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h > index f104c26..a6169ca 100644 > --- a/include/uapi/drm/drm_mode.h > +++ b/include/uapi/drm/drm_mode.h > @@ -73,6 +73,9 @@ > #define DRM_MODE_FLAG_3D_TOP_AND_BOTTOM (7<<14) > #define DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF (8<<14) > > +/* CRTC LCD clock polarity flags. */ > +#define DRM_MODE_FLAG_PIXELCLK_PPOL (1<<19) > +#define DRM_MODE_FLAG_PIXELCLK_NPOL (1<<20) Marek, It looks that Denis (copied) is working on the same problem, so you may want to be aware of his effort [1][2]. Shawn [1] http://thread.gmane.org/gmane.linux.drivers.driver-project.devel/42832 [2] http://thread.gmane.org/gmane.linux.drivers.driver-project.devel/42850/focus=279646 > > /* DPMS flags */ > /* bit compatible with the xorg definitions. */ > -- > 1.8.4.2 > _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
