This converts the DT binding for the Analogix DP bridge used in
the Exynos 5 and Rockchip RK3288/RK3399 SoCs to yaml.
Changes from the original binding:
- phy and phy-names aren't defined as 'required' (rk3399-evb.dts doesn't
define them)
Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@xxxxxxxxxxxxx>
---
This binding is meant to be used in conjunction with
Documentation/bindings/display/rockchip/analogix_dp-rockchip.txt
and
Documentation/bindings/display/exynos/exynos_dp.txt
I was careful to define the bindings to be flexible enough for both
cases, since the properties might be slightly different depending
on the SoC.
Tested with
make dt_binding_check ARCH=arm64 DT_SCHEMA_FILES=<...analogix_dp.yaml>
make dtbs_check ARCH=arm64 DT_SCHEMA_FILES=<...analogix_dp.yaml>
.../bindings/display/bridge/analogix_dp.txt | 51 --------
.../bindings/display/bridge/analogix_dp.yaml | 120 ++++++++++++++++++
2 files changed, 120 insertions(+), 51 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
create mode 100644 Documentation/devicetree/bindings/display/bridge/analogix_dp.yaml
diff --git a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
deleted file mode 100644
index 027d76c27a41..000000000000
--- a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
+++ /dev/null
@@ -1,51 +0,0 @@
-Analogix Display Port bridge bindings
-
-Required properties for dp-controller:
- -compatible:
- platform specific such as:
- * "samsung,exynos5-dp"
- * "rockchip,rk3288-dp"
- * "rockchip,rk3399-edp"
- -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".
- -phys:
- from general PHY binding: the phandle for the PHY device.
- -phy-names:
- from general PHY binding: Should be "dp".
-
-Optional properties for dp-controller:
- -force-hpd:
- Indicate driver need force hpd when hpd detect failed, this
- is used for some eDP screen which don't have hpd signal.
- -hpd-gpios:
- Hotplug detect GPIO.
- Indicates which GPIO should be used for hotplug detection
- -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/display/exynos/exynos_dp.txt
- * Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
-
-[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";
- };
diff --git a/Documentation/devicetree/bindings/display/bridge/analogix_dp.yaml b/Documentation/devicetree/bindings/display/bridge/analogix_dp.yaml
new file mode 100644
index 000000000000..a29a79d92c4b
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/analogix_dp.yaml
@@ -0,0 +1,120 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/analogix_dp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analogix Display Port bridge bindings
+
+maintainers:
+ - Yakir Yang <ykk@xxxxxxxxxxxxxx>
+
+description: |
+ The Samsung Exynos eDP and Rockchip RK3288 eDP controllers share the
+ same IP. This binding describes the nodes and properties that are
+ common to both SoCs.
+
+ Please, read this together with
+ Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
+ and
+ Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos5-dp
+ - rockchip,rk3288-dp
+ - rockchip,rk3399-edp
+
+ reg:
+ maxItems: 1
+ description:
+ Physical base address of the controller and length of memory
+ mapped region.
+
+ interrupts:
+ maxItems: 1
+ description: Interrupt combiner values.
+
+ clocks:
+ description: Phandles to dp clocks.
+
+ clock-names:
+ minItems: 1
+ maxItems: 3
+ additionalItems: true
+ items:
+ - const: dp
+ description: Must define at least "dp".
+
+ phys:
+ maxItems: 1
+ description: Phandle for the PHY device.
+
+ phy-names:
+ const: dp
+
+ force-hpd: true
+
+ hpd-gpios:
+ maxItems: 1
+ description:
+ Hotplug Detect GPIO. Indicates which GPIO should be used for
+ hotplug detection.
+
+ ports:
+ type: object
+ description: |
+ A node containing SoC-specific port nodes with endpoint
+ definitions as documented in
+ Documentation/devicetree/bindings/media/video-interfaces.txt
+
+ Please, refer to
+ Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
+ and
+ Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
+ for SoC-specific information about port and endpoint definitions.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+
+ properties:
+ reg:
+ const: 0
+
+ port@1:
+ type: object
+
+ properties:
+ reg:
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ dp: dp-controller@145b0000 {
+ 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";
+ };
+
+...
--
2.18.0
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