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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-03-03 12:16:23 +0100 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-03-11 14:46:29 +0100 |
| commit | 85604b0a247615157cedfec46b9cbfde2884f80f (patch) | |
| tree | ec88ac187104b424ccc00cec4a2846573b25cbeb | |
| parent | HACK: OMAP: DSS2: Fix OMAP2_DSS_USE_DSI_PLL (diff) | |
| download | linux-85604b0a247615157cedfec46b9cbfde2884f80f.tar.xz linux-85604b0a247615157cedfec46b9cbfde2884f80f.zip | |
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 e5da050bcf85..2be4d03ece43 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(); } |