From: Sylwester Nawrocki Date: Thu, 25 Jul 2013 21:07:05 +0000 (+0200) Subject: clk: exynos4: Add CLK_GET_RATE_NOCACHE flag for the Exynos4x12 ISP clocks X-Git-Tag: v3.11-rc6~7^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a701fe3851d9c7f6bd27bc0b92ca1668a42c8406;p=pandora-kernel.git clk: exynos4: Add CLK_GET_RATE_NOCACHE flag for the Exynos4x12 ISP clocks The ISP clock registers belong to the ISP power domain and may change their values if this power domain is switched off/on. Add CLK_GET_RATE_NOCACHE flags to ensure we do not rely on invalid cached data when setting or getting frequency of those clocks. Without this fix the FIMC-IS Cortex-A5 core and AXI bus clocks have incorrect frequencies, which breaks the ISP operation and starting the video pipeline fails with timeouts reported by the FIMC-IS firmware. See related commit 722a860ecb29aa34ec6f7d7f32b949209e8 "[media] exynos4-is: Fix FIMC-IS clocks initialization" for more details. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mike Turquette --- Reading git-diff-tree failed