diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-03-03 13:16:23 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-03-03 13:34:31 +0200 |
| commit | 1a975485480e45900380467e1a4f9b4d280ea361 (patch) | |
| tree | 18885b559f666b2d2b51e382b3d56699c2656ab0 | |
| parent | 96a4826b09b783d11d1036abd026bfe7a661be40 (diff) | |
| download | experimental-1a975485480e45900380467e1a4f9b4d280ea361.tar.gz | |
HACK: OMAP: DSS2: add delay after enabling clocks
On omap4 the registers may not be accessible right after enabling the
clocks. At some point this will be handled by pm_runtime, but, for the
time begin, adding a small delay after clk_enable() should make things
work.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| -rw-r--r-- | drivers/video/omap2/dss/dss.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c index e5da050bcf8..2be4d03ece4 100644 --- a/drivers/video/omap2/dss/dss.c +++ b/drivers/video/omap2/dss/dss.c @@ -850,6 +850,14 @@ void dss_clk_enable(enum dss_clock clks) dss_clk_enable_no_ctx(clks); + /* + * HACK: On omap4 the registers may not be accessible right after + * enabling the clocks. At some point this will be handled by + * pm_runtime, but for the time begin this should make things work. + */ + if (cpu_is_omap44xx() && check_ctx) + udelay(10); + if (check_ctx && cpu_is_omap34xx() && dss_need_ctx_restore()) restore_all_ctx(); } |