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authorTomi Valkeinen <tomi.valkeinen@ti.com>2012-10-24 10:55:54 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2012-10-29 11:44:42 +0100
commitf236b892b1cb736edbb9b61ace60ca4dd862e53a (patch)
tree8f5463adf3ff13f06f24134b35ee37ea907aacd6
parentOMAPDSS: HDMI: add 1920x1200 video mode (diff)
downloadlinux-f236b892b1cb736edbb9b61ace60ca4dd862e53a.tar.xz
linux-f236b892b1cb736edbb9b61ace60ca4dd862e53a.zip
OMAPDSS: HDMI: make hdmi pclk check more permissive
The hdmi driver tries to find the given video timings from its static list of timings, to find the required ID for the mode. The check tries to find exact match for the pixel clock, among other checks. with omapfb driver there can be some amount of error in the give pixel clock, as the pixel clock is converted between Hz and ps, thus the hdmi's check fails to find the mode. This patch makes the check more allowing, by rounding the pixel clocks to nearest MHz. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Ricardo Neri <ricardo.neri@ti.com>
-rw-r--r--drivers/video/omap2/dss/hdmi.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 9f5c4c25532e..03440e6c3f1b 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -404,7 +404,8 @@ static bool hdmi_timings_compare(struct omap_video_timings *timing1,
{
int timing1_vsync, timing1_hsync, timing2_vsync, timing2_hsync;
- if ((timing2->pixel_clock == timing1->pixel_clock) &&
+ if ((DIV_ROUND_CLOSEST(timing2->pixel_clock, 1000) ==
+ DIV_ROUND_CLOSEST(timing1->pixel_clock, 1000)) &&
(timing2->x_res == timing1->x_res) &&
(timing2->y_res == timing1->y_res)) {