From mboxrd@z Thu Jan 1 00:00:00 1970 From: marex@denx.de (Marek Vasut) Date: Mon, 2 Dec 2013 16:39:26 +0100 Subject: [PATCH 1/3] drm: Add LCD display clock polarity flags Message-ID: <1385998768-23512-1-git-send-email-marex@denx.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Cc: Dave Airlie Cc: Greg Kroah-Hartman Cc: Philipp Zabel Cc: Sascha Hauer Cc: Shawn Guo --- 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) /* DPMS flags */ /* bit compatible with the xorg definitions. */ -- 1.8.4.2