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OMAP: DSS2: Check ctx loss count only when starting the first clock

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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>
This commit is contained in:
Tomi Valkeinen 2009-12-01 13:23:25 +02:00
parent 6eed73debf
commit e296264977
1 changed files with 3 additions and 1 deletions
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4
drivers/video/omap2/dss/core.c
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@ -289,9 +289,11 @@ static void dss_clk_enable_no_ctx(enum dss_clock clks)
void dss_clk_enable(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); 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(); restore_all_ctx();
} }