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authorYoungJun Cho <yj44.cho@samsung.com>2014-04-11 21:45:11 +0900
committerInki Dae <inki.dae@samsung.com>2014-07-04 14:04:21 +0900
commit87be8c39810f38faf930ef164aa211a25634c673 (patch)
tree50918f5010c2bdf52a2f4246e58924fae9ec7e3c /Documentation
parentd8c0dfe9e230eb9727ea3a003a9ff73f7519af34 (diff)
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ARM: dts: samsung-fimd: add LCD I80 interface specific properties
In case of using MIPI DSI based I80 interface panel, the relevant registers should be set. So this patch adds relevant DT bindings. Change-Id: Ifc476d834f0bf25d9d908ec681fb80f17abf8b8c Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/video/samsung-fimd.txt28
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/video/samsung-fimd.txt b/Documentation/devicetree/bindings/video/samsung-fimd.txt
index b48635736d8..a67617acd07 100644
--- a/Documentation/devicetree/bindings/video/samsung-fimd.txt
+++ b/Documentation/devicetree/bindings/video/samsung-fimd.txt
@@ -42,6 +42,34 @@ Optional Properties:
- display-timings: timing settings for FIMD, as described in document [1].
Can be used in case timings cannot be provided otherwise
or to override timings provided by the panel.
+- samsung,sysreg: handle to syscon used to control the system registers
+- i80-if-timings: timing configuration for lcd i80 interface support.
+ - cs-setup: clock cycles for the active period of address signal is enabled
+ until chip select is enabled.
+ If not specified, the default value(0) will be used.
+ - wr-setup: clock cycles for the active period of CS signal is enabled until
+ write signal is enabled.
+ If not specified, the default value(0) will be used.
+ - wr-active: clock cycles for the active period of CS is enabled.
+ If not specified, the default value(1) will be used.
+ - wr-hold: clock cycles for the active period of CS is disabled until write
+ signal is disabled.
+ If not specified, the default value(0) will be used.
+
+ The parameters are defined as:
+
+ VCLK(internal) __|¯¯¯¯¯¯|_____|¯¯¯¯¯¯|_____|¯¯¯¯¯¯|_____|¯¯¯¯¯¯|_____|¯¯
+ : : : : :
+ Address Output --:<XXXXXXXXXXX:XXXXXXXXXXXX:XXXXXXXXXXXX:XXXXXXXXXXXX:XX
+ | cs-setup+1 | : : :
+ |<---------->| : : :
+ Chip Select ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯|____________:____________:____________|¯¯
+ | wr-setup+1 | | wr-hold+1 |
+ |<---------->| |<---------->|
+ Write Enable ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯|____________|¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
+ | wr-active+1|
+ |<---------->|
+ Video Data ----------------------------<XXXXXXXXXXXXXXXXXXXXXXXXX>--
The device node can contain 'port' child nodes according to the bindings defined
in [2]. The following are properties specific to those nodes: