[PATCH 03/18] ARM: dts: video: add command mode display timing DT bindings
This patch adds DT bindings for command mode display timing.
Signed-off-by: YoungJun Cho
Acked-by: Inki Dae
Acked-by: Kyungmin Park
---
.../bindings/video/cmdmode-display-timing.txt | 64
1 file changed, 64 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/cmdmode-display-timing.txt
diff --git a/Documentation/devicetree/bindings/video/cmdmode-display-timing.txt
b/Documentation/devicetree/bindings/video/cmdmode-display-timing.txt
new file mode 100644
index 000..7cedfe4
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/cmdmode-display-timing.txt
@@ -0,0 +1,64 @@
+cmdmode-display-timing bindings
+===
+
+cmdmode-display-timings node
+
+
+required properties:
+ - none
+
+optional properties:
+ - native-mode: The native mode for the display, in case multiple modes are
+ provided. When omitted, assume the first node is the native.
+
+timing subnode
+--
+
+required properties:
+ - clock-frequency: display clock in Hz
+ - hactive, vactive: display resolution
+ - cs-setup: clock cycles for the active period of address signal is enabled
+ until chip select is enabled.
+ - wr-setup: clock cycles for the active period of CS signal is enabled until
+ write signal is enabled.
+ - wr-active: clock cycles for the active period of CS is enabled.
+ - wr-hold: clock cycles for the active period of CS is disabled until write
+ signal is disabled.
+
+optional properties:
+
+There are different ways of describing the capabilities of a display. The
+devicetree representation corresponds to the one commonly found in datasheets
+for displays. If a display supports multiple signal timings, the native-mode
+can be specified.
+
+The parameters are defined as:
+
+ VCLK(internal) __|??|_|??|_|??|_|??|_|??
+:::::
+ Address Output --:|:::
+ Chip Select ???|::|??
+ | WR-SETUP+1 || WR-HOLD+1 |
+ |<-->||<-->|
+ Write Enable||???
+ | WR-ACTIVE+1|
+ |<-->|
+ Video Data --
+
+Example:
+
+ cmdmode-display-timings {
+ native-mode = <>;
+ timing0: 1080p24 {
+ /* 1920x1080p24 */
+ clock-frequency = <5200>;
+ hactive = <1920>;
+ vactive = <1080>;
+ cs-setup = <0>;
+ wr-setup = <0>;
+ wr-active = <1>;
+ wr-hold = <0>;
+ };
+ };
--
1.7.9.5
[RFC v4 PATCH 03/18] ARM: dts: video: add command mode display timing DT bindings
This patch adds DT bindings for command mode display timing.
Signed-off-by: YoungJun Cho
Acked-by: Inki Dae
Acked-by: Kyungmin Park
---
.../bindings/video/cmdmode-display-timing.txt | 64
1 file changed, 64 insertions(+)
create mode 100644
Documentation/devicetree/bindings/video/cmdmode-display-timing.txt
diff --git a/Documentation/devicetree/bindings/video/cmdmode-display-timing.txt
b/Documentation/devicetree/bindings/video/cmdmode-display-timing.txt
new file mode 100644
index 000..7cedfe4
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/cmdmode-display-timing.txt
@@ -0,0 +1,64 @@
+cmdmode-display-timing bindings
+===
+
+cmdmode-display-timings node
+
+
+required properties:
+ - none
+
+optional properties:
+ - native-mode: The native mode for the display, in case multiple modes are
+ provided. When omitted, assume the first node is the native.
+
+timing subnode
+--
+
+required properties:
+ - clock-frequency: display clock in Hz
+ - hactive, vactive: display resolution
+ - cs-setup: clock cycles for the active period of address signal is enabled
+ until chip select is enabled.
+ - wr-setup: clock cycles for the active period of CS signal is enabled until
+ write signal is enabled.
+ - wr-active: clock cycles for the active period of CS is enabled.
+ - wr-hold: clock cycles for the active period of CS is disabled until write
+ signal is disabled.
+
+optional properties:
+
+There are different ways of describing the capabilities of a display. The
+devicetree representation corresponds to the one commonly found in datasheets
+for displays. If a display supports multiple signal timings, the native-mode
+can be specified.
+
+The parameters are defined as:
+
+ VCLK(internal) __|??|_|??|_|??|_|??|_|??
+:::::
+ Address Output --:|:::
+ Chip Select ???|::|??
+ | WR-SETUP+1 || WR-HOLD+1 |
+ |<-->||<-->|
+ Write Enable||???
+ | WR-ACTIVE+1|
+ |<-->|
+ Video Data --
+
+Example:
+
+ cmdmode-display-timings {
+ native-mode = <>;
+ timing0: 1080p24 {
+ /* 1920x1080p24 */
+ clock-frequency = <5200>;
+ hactive = <1920>;
+ vactive = <1080>;
+ cs-setup = <0>;
+ wr-setup = <0>;
+ wr-active = <1>;
+ wr-hold = <0>;
+ };
+ };
--
1.7.9.5
