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authorAjay Kumar <ajaykumar.rs@samsung.com>2014-09-05 16:53:33 +0530
committerMinkyu Kang <mk7.kang@samsung.com>2014-09-05 20:37:07 +0900
commit45c480c9f6dbb80c7af721f451b4df5a32402899 (patch)
tree9658c90ef37bb83b464529eabda17150a43694a3 /doc
parent496f0e47e1019844b82026c498827501542f8d79 (diff)
video: exynos_fimd: Add framework to disable FIMD sysmmu
On Exynos5420 and newer versions, the FIMD sysmmus are in "on state" by default. We have to disable them in order to make FIMD DMA work. This patch adds the required framework to exynos_fimd driver, and disables FIMD sysmmu on Exynos5420. Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'doc')
-rw-r--r--doc/device-tree-bindings/video/exynos-fb.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/video/exynos-fb.txt b/doc/device-tree-bindings/video/exynos-fb.txt
index bb7441cbbed..dc4e44fbc52 100644
--- a/doc/device-tree-bindings/video/exynos-fb.txt
+++ b/doc/device-tree-bindings/video/exynos-fb.txt
@@ -55,6 +55,12 @@ Board(panel specific):
samsung,pclk-name: parent clock identifier: 1(MPLL), 2(EPLL), 3(VPLL)
samsung,sclk-div: parent_clock/source_clock ratio
samsung,dual-lcd-enabled: 1 if you support two LCD, else 0
+ samsung,disable-sysmmu: Define this if you want to disable FIMD sysmmu.
+ (needed for Exynos5420 and newer versions)
+ Add the required FIMD sysmmu nodes to be
+ disabled with compatible string
+ "samsung,sysmmu-v3.3", with a "reg" property
+ holding the register address of FIMD sysmmu.
Example:
SOC specific part: