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| author | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2009-12-01 13:23:25 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2010-02-15 15:14:43 +0200 |
| commit | e296264977f68ddf395b8f93f8e174930f88499a (patch) | |
| tree | 64b12f21537a5c305d64418bad99bfcdbed4cb7f /drivers | |
| parent | 6eed73debf5840a42ebe9ea90958d2ce4a38c6b0 (diff) | |
| download | linux-e296264977f68ddf395b8f93f8e174930f88499a.tar.bz2 | |
OMAP: DSS2: Check ctx loss count only when starting the first clock
When OMAP PM layer is no-op/debug, the PM layer will increment context
loss count with every call. This resulted DSS2 to restore context
whenever a clock was enabled.
This commit checks the context loss count only when the context actually
could have been lost, ie. when enabling a clock when no clocks had been
previously enabled.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/omap2/dss/core.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index 5939da9cf021..72547dfc56b8 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -289,9 +289,11 @@ static void dss_clk_enable_no_ctx(enum dss_clock clks) void dss_clk_enable(enum dss_clock clks) { + bool check_ctx = core.num_clks_enabled == 0; + dss_clk_enable_no_ctx(clks); - if (cpu_is_omap34xx() && dss_need_ctx_restore()) + if (check_ctx && cpu_is_omap34xx() && dss_need_ctx_restore()) restore_all_ctx(); } |