commit 6fcd485b04e67c370026b41a951e0dc410a8d47b
author Tomi Valkeinen <tomi.valkeinen@ti.com> Fri May 10 13:02:32 2013 +0300
committer Tomi Valkeinen <tomi.valkeinen@ti.com> Mon Jun 17 14:00:47 2013 +0300
tree 7ff169ed707a68c491e6967b7f1dfa6027f2a1bb
parent 7e436bb2e3b14706a8bbed21d8d244a89199a907

OMAPDSS: add videomode conversion support

Add helper functions to convert between omapdss specific video timings
and the common videomode.

Eventually omapdss will be changed to use only the common video timings,
and these helper functions will make the transition easier.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/omap2/dss/Kconfig

diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig
index cb0f145..8f70a83 100644
--- a/drivers/video/omap2/dss/Kconfig
+++ b/drivers/video/omap2/dss/Kconfig
@@ -1,5 +1,6 @@
 menuconfig OMAP2_DSS
         tristate "OMAP2+ Display Subsystem support"
+	select VIDEOMODE_HELPERS
         help
 	  OMAP2+ Display Subsystem support.
 

drivers/video/omap2/dss/display.c

diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 0aa8ad8..72ac058 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -219,3 +219,72 @@
 }
 EXPORT_SYMBOL(omap_dss_stop_device);
 
+void videomode_to_omap_video_timings(const struct videomode *vm,
+		struct omap_video_timings *ovt)
+{
+	memset(ovt, 0, sizeof(*ovt));
+
+	ovt->pixel_clock = vm->pixelclock / 1000;
+	ovt->x_res = vm->hactive;
+	ovt->hbp = vm->hback_porch;
+	ovt->hfp = vm->hfront_porch;
+	ovt->hsw = vm->hsync_len;
+	ovt->y_res = vm->vactive;
+	ovt->vbp = vm->vback_porch;
+	ovt->vfp = vm->vfront_porch;
+	ovt->vsw = vm->vsync_len;
+
+	ovt->vsync_level = vm->flags & DISPLAY_FLAGS_VSYNC_HIGH ?
+		OMAPDSS_SIG_ACTIVE_HIGH :
+		OMAPDSS_SIG_ACTIVE_LOW;
+	ovt->hsync_level = vm->flags & DISPLAY_FLAGS_HSYNC_HIGH ?
+		OMAPDSS_SIG_ACTIVE_HIGH :
+		OMAPDSS_SIG_ACTIVE_LOW;
+	ovt->de_level = vm->flags & DISPLAY_FLAGS_DE_HIGH ?
+		OMAPDSS_SIG_ACTIVE_HIGH :
+		OMAPDSS_SIG_ACTIVE_HIGH;
+	ovt->data_pclk_edge = vm->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE ?
+		OMAPDSS_DRIVE_SIG_RISING_EDGE :
+		OMAPDSS_DRIVE_SIG_FALLING_EDGE;
+
+	ovt->sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES;
+}
+EXPORT_SYMBOL(videomode_to_omap_video_timings);
+
+void omap_video_timings_to_videomode(const struct omap_video_timings *ovt,
+		struct videomode *vm)
+{
+	memset(vm, 0, sizeof(*vm));
+
+	vm->pixelclock = ovt->pixel_clock * 1000;
+
+	vm->hactive = ovt->x_res;
+	vm->hback_porch = ovt->hbp;
+	vm->hfront_porch = ovt->hfp;
+	vm->hsync_len = ovt->hsw;
+	vm->vactive = ovt->y_res;
+	vm->vback_porch = ovt->vbp;
+	vm->vfront_porch = ovt->vfp;
+	vm->vsync_len = ovt->vsw;
+
+	if (ovt->hsync_level == OMAPDSS_SIG_ACTIVE_HIGH)
+		vm->flags |= DISPLAY_FLAGS_HSYNC_HIGH;
+	else
+		vm->flags |= DISPLAY_FLAGS_HSYNC_LOW;
+
+	if (ovt->vsync_level == OMAPDSS_SIG_ACTIVE_HIGH)
+		vm->flags |= DISPLAY_FLAGS_VSYNC_HIGH;
+	else
+		vm->flags |= DISPLAY_FLAGS_VSYNC_LOW;
+
+	if (ovt->de_level == OMAPDSS_SIG_ACTIVE_HIGH)
+		vm->flags |= DISPLAY_FLAGS_DE_HIGH;
+	else
+		vm->flags |= DISPLAY_FLAGS_DE_LOW;
+
+	if (ovt->data_pclk_edge == OMAPDSS_DRIVE_SIG_RISING_EDGE)
+		vm->flags |= DISPLAY_FLAGS_PIXDATA_POSEDGE;
+	else
+		vm->flags |= DISPLAY_FLAGS_PIXDATA_NEGEDGE;
+}
+EXPORT_SYMBOL(omap_video_timings_to_videomode);