[PATCH v3 06/14] Documentation: drm/bridge: add document for analogix_dp

From: Yakir Yang
Date: Wed Aug 19 2015 - 10:50:58 EST

Next message: Sascha Hauer: "Re: [PATCH v7 0/9] Fixes and new clocks support for Mediatek MT8173"
Previous message: Yakir Yang: "[PATCH v3 05/14] drm: bridge/analogix_dp: fix link_rate & lane_count bug"
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Analogix dp driver is split from exynos dp driver, so we just
make an copy of exynos_dp.txt, and then simplify exynos_dp.txt

Beside update some exynos dtsi file with the latest change
according to the devicetree binding documents.

Signed-off-by: Yakir Yang <ykk@xxxxxxxxxxxxxx>
---
Changes in v3:
- Take Heiko suggest, add devicetree binding documents.
- Take Thierry Reding suggest, remove sync pol & colorimetry properies
from the new analogix dp driver devicetree binding.
- Update the exist exynos dtsi file with the latest DP DT properies.

Changes in v2: None

.../devicetree/bindings/drm/bridge/analogix_dp.txt | 70 ++++++++++++++++++++++
.../devicetree/bindings/video/exynos_dp.txt | 50 ++++++----------
arch/arm/boot/dts/exynos5250-arndale.dts | 10 ++--
arch/arm/boot/dts/exynos5250-smdk5250.dts | 10 ++--
arch/arm/boot/dts/exynos5250-snow.dts | 12 ++--
arch/arm/boot/dts/exynos5250-spring.dts | 12 ++--
arch/arm/boot/dts/exynos5420-peach-pit.dts | 12 ++--
arch/arm/boot/dts/exynos5420-smdk5420.dts | 10 ++--
arch/arm/boot/dts/exynos5800-peach-pi.dts | 12 ++--
9 files changed, 119 insertions(+), 79 deletions(-)
create mode 100644 Documentation/devicetree/bindings/drm/bridge/analogix_dp.txt

diff --git a/Documentation/devicetree/bindings/drm/bridge/analogix_dp.txt b/Documentation/devicetree/bindings/drm/bridge/analogix_dp.txt
new file mode 100644
index 0000000..6127018
--- /dev/null
+++ b/Documentation/devicetree/bindings/drm/bridge/analogix_dp.txt
@@ -0,0 +1,70 @@
+Analogix Display Port bridge bindings
+
+Required properties for dp-controller:
+ -compatible:
+ platform specific such as:
+ * "samsung,exynos5-dp"
+ * "rockchip,rk3288-dp"
+ -reg:
+ physical base address of the controller and length
+ of memory mapped region.
+ -interrupts:
+ interrupt combiner values.
+ -clocks:
+ from common clock binding: handle to dp clock.
+ -clock-names:
+ from common clock binding: Shall be "dp".
+ -interrupt-parent:
+ phandle to Interrupt combiner node.
+ -phys:
+ from general PHY binding: the phandle for the PHY device.
+ -phy-names:
+ from general PHY binding: Should be "dp".
+ -analogix,color-space:
+ input video data format.
+ COLOR_RGB = 0, COLOR_YCBCR422 = 1, COLOR_YCBCR444 = 2
+ -analogix,color-depth:
+ number of bits per colour component.
+ COLOR_6 = 0, COLOR_8 = 1, COLOR_10 = 2, COLOR_12 = 3
+ -analogix,link-rate:
+ max link rate supported by the eDP controller.
+ LINK_RATE_1_62GBPS = 0x6, LINK_RATE_2_70GBPS = 0x0A,
+ LINK_RATE_5_40GBPS = 0x14
+ -analogix,lane-count:
+ max number of lanes supported by the eDP contoller.
+ LANE_COUNT1 = 1, LANE_COUNT2 = 2, LANE_COUNT4 = 4
+ -port@[X]: SoC specific port nodes with endpoint definitions as defined
+ in Documentation/devicetree/bindings/media/video-interfaces.txt,
+ please refer to the SoC specific binding document:
+ * Documentation/devicetree/bindings/video/exynos_dp.txt
+ * Documentation/devicetree/bindings/video/analogix_dp-rockchip.txt
+
+Optional properties for dp-controller:
+ -analogix,hpd-gpio:
+ Hotplug detect GPIO.
+ Indicates which GPIO should be used for hotplug
+ detection
+ -video interfaces: Device node can contain video interface port
+ nodes according to [1].
+
+[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
+-------------------------------------------------------------------------------
+
+Example:
+
+ dp-controller {
+ compatible = "samsung,exynos5-dp";
+ reg = <0x145b0000 0x10000>;
+ interrupts = <10 3>;
+ interrupt-parent = <&combiner>;
+ clocks = <&clock 342>;
+ clock-names = "dp";
+
+ phys = <&dp_phy>;
+ phy-names = "dp";
+
+ analogix,color-space = <0>;
+ analogix,color-depth = <1>;
+ analogix,link-rate = <0x0a>;
+ analogix,lane-count = <4>;
+ };
diff --git a/Documentation/devicetree/bindings/video/exynos_dp.txt b/Documentation/devicetree/bindings/video/exynos_dp.txt
index 7a3a9cd..177506f 100644
--- a/Documentation/devicetree/bindings/video/exynos_dp.txt
+++ b/Documentation/devicetree/bindings/video/exynos_dp.txt
@@ -31,28 +31,10 @@ Required properties for dp-controller:
from general PHY binding: the phandle for the PHY device.
-phy-names:
from general PHY binding: Should be "dp".
- -samsung,color-space:
- input video data format.
- COLOR_RGB = 0, COLOR_YCBCR422 = 1, COLOR_YCBCR444 = 2
- -samsung,dynamic-range:
- dynamic range for input video data.
- VESA = 0, CEA = 1
- -samsung,ycbcr-coeff:
- YCbCr co-efficients for input video.
- COLOR_YCBCR601 = 0, COLOR_YCBCR709 = 1
- -samsung,color-depth:
- number of bits per colour component.
- COLOR_6 = 0, COLOR_8 = 1, COLOR_10 = 2, COLOR_12 = 3
- -samsung,link-rate:
- link rate supported by the panel.
- LINK_RATE_1_62GBPS = 0x6, LINK_RATE_2_70GBPS = 0x0A
- -samsung,lane-count:
- number of lanes supported by the panel.
- LANE_COUNT1 = 1, LANE_COUNT2 = 2, LANE_COUNT4 = 4
- - display-timings: timings for the connected panel as described by
- Documentation/devicetree/bindings/video/display-timing.txt

Optional properties for dp-controller:
+ - display-timings: timings for the connected panel as described by
+ Documentation/devicetree/bindings/video/display-timing.txt
-interlaced:
interlace scan mode.
Progressive if defined, Interlaced if not defined
@@ -62,14 +44,18 @@ Optional properties for dp-controller:
-hsync-active-high:
HSYNC polarity configuration.
High if defined, Low if not defined
- -samsung,hpd-gpio:
- Hotplug detect GPIO.
- Indicates which GPIO should be used for hotplug
- detection
- -video interfaces: Device node can contain video interface port
- nodes according to [1].

-[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
+For the below properties, please refer to Analogix DP binding document:
+ * Documentation/devicetree/bindings/drm/bridge/analogix_dp.txt
+ -phys (required)
+ -phy-names (required)
+ -analogix,color-space (required)
+ -analogix,color-depth (required)
+ -analogix,link-rate (required)
+ -analogix,lane-count (required)
+ -analogix,hpd-gpio (optional)
+ -video interfaces (optional)
+-------------------------------------------------------------------------------

Example:

@@ -88,12 +74,10 @@ SOC specific portion:

Board Specific portion:
dp-controller {
- samsung,color-space = <0>;
- samsung,dynamic-range = <0>;
- samsung,ycbcr-coeff = <0>;
- samsung,color-depth = <1>;
- samsung,link-rate = <0x0a>;
- samsung,lane-count = <4>;
+ analogix,color-space = <0>;
+ analogix,color-depth = <1>;
+ analogix,link-rate = <0x0a>;
+ analogix,lane-count = <4>;

display-timings {
native-mode = <&lcd_timing>;
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index 7e728a1..e48798d 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -119,12 +119,10 @@

&dp {
status = "okay";
- samsung,color-space = <0>;
- samsung,dynamic-range = <0>;
- samsung,ycbcr-coeff = <0>;
- samsung,color-depth = <1>;
- samsung,link-rate = <0x0a>;
- samsung,lane-count = <4>;
+ analogix,color-space = <0>;
+ analogix,color-depth = <1>;
+ analogix,link-rate = <0x0a>;
+ analogix,lane-count = <4>;
};

&fimd {
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 4fe186d..b8c6b8b 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -75,12 +75,10 @@
};

&dp {
- samsung,color-space = <0>;
- samsung,dynamic-range = <0>;
- samsung,ycbcr-coeff = <0>;
- samsung,color-depth = <1>;
- samsung,link-rate = <0x0a>;
- samsung,lane-count = <4>;
+ analogix,color-space = <0>;
+ analogix,color-depth = <1>;
+ analogix,link-rate = <0x0a>;
+ analogix,lane-count = <4>;

pinctrl-names = "default";
pinctrl-0 = <&dp_hpd>;
diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index b7f4122..9ce2b89 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -239,13 +239,11 @@
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&dp_hpd>;
- samsung,color-space = <0>;
- samsung,dynamic-range = <0>;
- samsung,ycbcr-coeff = <0>;
- samsung,color-depth = <1>;
- samsung,link-rate = <0x0a>;
- samsung,lane-count = <2>;
- samsung,hpd-gpio = <&gpx0 7 GPIO_ACTIVE_HIGH>;
+ analogix,color-space = <0>;
+ analogix,color-depth = <1>;
+ analogix,link-rate = <0x0a>;
+ analogix,lane-count = <2>;
+ analogix,hpd-gpio = <&gpx0 7 GPIO_ACTIVE_HIGH>;

ports {
port@0 {
diff --git a/arch/arm/boot/dts/exynos5250-spring.dts b/arch/arm/boot/dts/exynos5250-spring.dts
index d03f9b8..9288ae6 100644
--- a/arch/arm/boot/dts/exynos5250-spring.dts
+++ b/arch/arm/boot/dts/exynos5250-spring.dts
@@ -69,13 +69,11 @@
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&dp_hpd_gpio>;
- samsung,color-space = <0>;
- samsung,dynamic-range = <0>;
- samsung,ycbcr-coeff = <0>;
- samsung,color-depth = <1>;
- samsung,link-rate = <0x0a>;
- samsung,lane-count = <1>;
- samsung,hpd-gpio = <&gpc3 0 GPIO_ACTIVE_HIGH>;
+ analogix,color-space = <0>;
+ analogix,color-depth = <1>;
+ analogix,link-rate = <0x0a>;
+ analogix,lane-count = <1>;
+ analogix,hpd-gpio = <&gpc3 0 GPIO_ACTIVE_HIGH>;
};

&ehci {
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 8f4d76c..695a380 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -147,13 +147,11 @@
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&dp_hpd_gpio>;
- samsung,color-space = <0>;
- samsung,dynamic-range = <0>;
- samsung,ycbcr-coeff = <0>;
- samsung,color-depth = <1>;
- samsung,link-rate = <0x06>;
- samsung,lane-count = <2>;
- samsung,hpd-gpio = <&gpx2 6 0>;
+ analogix,color-space = <0>;
+ analogix,color-depth = <1>;
+ analogix,link-rate = <0x06>;
+ analogix,lane-count = <2>;
+ analogix,hpd-gpio = <&gpx2 6 0>;

ports {
port@0 {
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index 98871f9..fd46714 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -91,12 +91,10 @@
&dp {
pinctrl-names = "default";
pinctrl-0 = <&dp_hpd>;
- samsung,color-space = <0>;
- samsung,dynamic-range = <0>;
- samsung,ycbcr-coeff = <0>;
- samsung,color-depth = <1>;
- samsung,link-rate = <0x0a>;
- samsung,lane-count = <4>;
+ analogix,color-space = <0>;
+ analogix,color-depth = <1>;
+ analogix,link-rate = <0x0a>;
+ analogix,lane-count = <4>;
status = "okay";
};

diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 7d5b386..54b4c63 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -141,13 +141,11 @@
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&dp_hpd_gpio>;
- samsung,color-space = <0>;
- samsung,dynamic-range = <0>;
- samsung,ycbcr-coeff = <0>;
- samsung,color-depth = <1>;
- samsung,link-rate = <0x0a>;
- samsung,lane-count = <2>;
- samsung,hpd-gpio = <&gpx2 6 0>;
+ analogix,color-space = <0>;
+ analogix,color-depth = <1>;
+ analogix,link-rate = <0x0a>;
+ analogix,lane-count = <2>;
+ analogix,hpd-gpio = <&gpx2 6 0>;
panel = <&panel>;
};

--
1.9.1

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Next message: Sascha Hauer: "Re: [PATCH v7 0/9] Fixes and new clocks support for Mediatek MT8173"
Previous message: Yakir Yang: "[PATCH v3 05/14] drm: bridge/analogix_dp: fix link_rate & lane_count bug"
In reply to: Yakir Yang: "Re: [PATCH v3 05/14] drm: bridge/analogix_dp: fix link_rate & lane_count bug"
Next in thread: Rob Herring: "Re: [PATCH v3 06/14] Documentation: drm/bridge: add document for analogix_dp"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]