linux_dsm_epyc7002/drivers/video/omap2
Tomi Valkeinen 3870c909f2 OMAP: DSS2: HDMI: improve hdmi output enable
Enabling HDMI output often causes sync lost errors, and almost always
causes timeout errors being printed from dispc_mgr_enable_digit_out().

The sync lost problem seems to go lessen greatly if we first enable the
HDMI output, and only then enable the DISPC output. However, as this is
only based on observations, the fix may not be perfect as the problem
may lie somewhere else. Nevertheless, HDMI works better with this patch.

This will also fix the dispc's dispc_mgr_enable_digit_out(), as the code
waits for two VSYNCs after enabling the output. If the HDMI output is
disabled (as it was previously), there are no VSYNCs and
dispc_mgr_enable_digit_out() will print timeout errors.

Cc: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-30 16:16:43 +03:00
..
displays OMAP: DSS2: Create an enum for DSI pixel formats 2011-09-30 16:16:29 +03:00
dss OMAP: DSS2: HDMI: improve hdmi output enable 2011-09-30 16:16:43 +03:00
omapfb OMAP: OMAPFB: string parsing cleanups 2011-09-30 16:16:22 +03:00
Kconfig OMAP: DSS2: Add generic and Sharp panel drivers 2009-12-09 18:19:42 +02:00
Makefile OMAP2: avoid descending into disabled framebuffer dirs 2011-05-11 14:20:53 +03:00
vram.c OMAP: DSS: VRAM: Align start & size of vram to 2M 2010-12-15 11:16:08 +02:00
vrfb.c OMAP: Add support for VRFB rotation engine 2009-12-09 12:04:33 +02:00