From 386f167c69ca1c6920581f2cb78be8a1f6691539 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Thu, 2 Oct 2014 17:58:51 +0000 Subject: [PATCH] OMAPDSS: DISPC: change sync_pclk_edge default value The common 'struct videomode' does not have a flag to select when the sync signals should be driven. The default behavior of DISPC HW is to drive the sync signal on the opposite pixel clock edge from data signal, which is also what the videomode_to_omap_video_timings() uses. However, it looks like what panels usually expect is that the data and sync signals are driven on the same edge, so let's change videomode_to_omap_video_timings() to set the sync_pclk_edge accordingly. Note that this only affect panels drivers that use videomode_to_omap_video_timings(), probably when getting the video timings directly from DT data. The drivers can still configure the sync_pclk_edge independently if they so wish. Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/omap2/dss/display.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/video/fbdev/omap2/dss/display.c b/drivers/video/fbdev/omap2/dss/display.c index a6fd2d35ad60..ef5b9027985d 100644 --- a/drivers/video/fbdev/omap2/dss/display.c +++ b/drivers/video/fbdev/omap2/dss/display.c @@ -295,9 +295,7 @@ void videomode_to_omap_video_timings(const struct videomode *vm, OMAPDSS_DRIVE_SIG_RISING_EDGE : OMAPDSS_DRIVE_SIG_FALLING_EDGE; - ovt->sync_pclk_edge = vm->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE ? - OMAPDSS_DRIVE_SIG_FALLING_EDGE : - OMAPDSS_DRIVE_SIG_RISING_EDGE; + ovt->sync_pclk_edge = ovt->data_pclk_edge; } EXPORT_SYMBOL(videomode_to_omap_video_timings); -- 2.34.1