+++ /dev/null
-ST-Ericsson Multi Channel Display Engine MCDE
-
-The ST-Ericsson MCDE is a display controller with support for compositing
-and displaying several channels memory resident graphics data on DSI or
-LCD displays or bridges. It is used in the ST-Ericsson U8500 platform.
-
-Required properties:
-
-- compatible: must be:
- "ste,mcde"
-- reg: register base for the main MCDE control registers, should be
- 0x1000 in size
-- interrupts: the interrupt line for the MCDE
-- epod-supply: a phandle to the EPOD regulator
-- vana-supply: a phandle to the analog voltage regulator
-- clocks: an array of the MCDE clocks in this strict order:
- MCDECLK (main MCDE clock), LCDCLK (LCD clock), PLLDSI
- (HDMI clock), DSI0ESCLK (DSI0 energy save clock),
- DSI1ESCLK (DSI1 energy save clock), DSI2ESCLK (DSI2 energy
- save clock)
-- clock-names: must be the following array:
- "mcde", "lcd", "hdmi"
- to match the required clock inputs above.
-- #address-cells: should be <1> (for the DSI hosts that will be children)
-- #size-cells: should be <1> (for the DSI hosts that will be children)
-- ranges: this should always be stated
-
-Required subnodes:
-
-The devicetree must specify subnodes for the DSI host adapters.
-These must have the following characteristics:
-
-- compatible: must be:
- "ste,mcde-dsi"
-- reg: must specify the register range for the DSI host
-- vana-supply: phandle to the VANA voltage regulator
-- clocks: phandles to the high speed and low power (energy save) clocks
- the high speed clock is not present on the third (dsi2) block, so it
- should only have the "lp" clock
-- clock-names: "hs" for the high speed clock and "lp" for the low power
- (energy save) clock
-- #address-cells: should be <1>
-- #size-cells: should be <0>
-
-Display panels and bridges will appear as children on the DSI hosts, and
-the displays are connected to the DSI hosts using the common binding
-for video transmitter interfaces; see
-Documentation/devicetree/bindings/media/video-interfaces.txt
-
-If a DSI host is unused (not connected) it will have no children defined.
-
-Example:
-
-mcde@a0350000 {
- compatible = "ste,mcde";
- reg = <0xa0350000 0x1000>;
- interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
- epod-supply = <&db8500_b2r2_mcde_reg>;
- vana-supply = <&ab8500_ldo_ana_reg>;
- clocks = <&prcmu_clk PRCMU_MCDECLK>, /* Main MCDE clock */
- <&prcmu_clk PRCMU_LCDCLK>, /* LCD clock */
- <&prcmu_clk PRCMU_PLLDSI>; /* HDMI clock */
- clock-names = "mcde", "lcd", "hdmi";
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- dsi0: dsi@a0351000 {
- compatible = "ste,mcde-dsi";
- reg = <0xa0351000 0x1000>;
- vana-supply = <&ab8500_ldo_ana_reg>;
- clocks = <&prcmu_clk PRCMU_DSI0CLK>, <&prcmu_clk PRCMU_DSI0ESCCLK>;
- clock-names = "hs", "lp";
- #address-cells = <1>;
- #size-cells = <0>;
-
- panel {
- compatible = "samsung,s6d16d0";
- reg = <0>;
- vdd1-supply = <&ab8500_ldo_aux1_reg>;
- reset-gpios = <&gpio2 1 GPIO_ACTIVE_LOW>;
- };
-
- };
- dsi1: dsi@a0352000 {
- compatible = "ste,mcde-dsi";
- reg = <0xa0352000 0x1000>;
- vana-supply = <&ab8500_ldo_ana_reg>;
- clocks = <&prcmu_clk PRCMU_DSI1CLK>, <&prcmu_clk PRCMU_DSI1ESCCLK>;
- clock-names = "hs", "lp";
- #address-cells = <1>;
- #size-cells = <0>;
- };
- dsi2: dsi@a0353000 {
- compatible = "ste,mcde-dsi";
- reg = <0xa0353000 0x1000>;
- vana-supply = <&ab8500_ldo_ana_reg>;
- /* This DSI port only has the Low Power / Energy Save clock */
- clocks = <&prcmu_clk PRCMU_DSI2ESCCLK>;
- clock-names = "lp";
- #address-cells = <1>;
- #size-cells = <0>;
- };
-};
--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/ste,mcde.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ST-Ericsson Multi Channel Display Engine MCDE
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+properties:
+ compatible:
+ const: ste,mcde
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description: an array of the MCDE clocks
+ items:
+ - description: MCDECLK (main MCDE clock)
+ - description: LCDCLK (LCD clock)
+ - description: PLLDSI (HDMI clock)
+
+ clock-names:
+ items:
+ - const: mcde
+ - const: lcd
+ - const: hdmi
+
+ resets:
+ maxItems: 1
+
+ epod-supply:
+ description: a phandle to the EPOD regulator
+
+ vana-supply:
+ description: a phandle to the analog voltage regulator
+
+ port:
+ type: object
+ description:
+ A DPI port node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+patternProperties:
+ "^dsi@[0-9a-f]+$":
+ description: subnodes for the three DSI host adapters
+ type: object
+ allOf:
+ - $ref: dsi-controller.yaml#
+ properties:
+ compatible:
+ const: ste,mcde-dsi
+
+ reg:
+ maxItems: 1
+
+ vana-supply:
+ description: a phandle to the analog voltage regulator
+
+ clocks:
+ description: phandles to the high speed and low power (energy save) clocks
+ the high speed clock is not present on the third (dsi2) block, so it
+ should only have the "lp" clock
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ oneOf:
+ - items:
+ - const: hs
+ - const: lp
+ - items:
+ - const: lp
+
+ required:
+ - compatible
+ - reg
+ - vana-supply
+ - clocks
+ - clock-names
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - epod-supply
+ - vana-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/mfd/dbx500-prcmu.h>
+ #include <dt-bindings/gpio/gpio.h>
+
+ mcde@a0350000 {
+ compatible = "ste,mcde";
+ reg = <0xa0350000 0x1000>;
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ epod-supply = <&db8500_b2r2_mcde_reg>;
+ vana-supply = <&ab8500_ldo_ana_reg>;
+ clocks = <&prcmu_clk PRCMU_MCDECLK>,
+ <&prcmu_clk PRCMU_LCDCLK>,
+ <&prcmu_clk PRCMU_PLLDSI>;
+ clock-names = "mcde", "lcd", "hdmi";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ dsi0: dsi@a0351000 {
+ compatible = "ste,mcde-dsi";
+ reg = <0xa0351000 0x1000>;
+ vana-supply = <&ab8500_ldo_ana_reg>;
+ clocks = <&prcmu_clk PRCMU_DSI0CLK>, <&prcmu_clk PRCMU_DSI0ESCCLK>;
+ clock-names = "hs", "lp";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "samsung,s6d16d0";
+ reg = <0>;
+ vdd1-supply = <&ab8500_ldo_aux1_reg>;
+ reset-gpios = <&gpio2 1 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ dsi1: dsi@a0352000 {
+ compatible = "ste,mcde-dsi";
+ reg = <0xa0352000 0x1000>;
+ vana-supply = <&ab8500_ldo_ana_reg>;
+ clocks = <&prcmu_clk PRCMU_DSI1CLK>, <&prcmu_clk PRCMU_DSI1ESCCLK>;
+ clock-names = "hs", "lp";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ dsi2: dsi@a0353000 {
+ compatible = "ste,mcde-dsi";
+ reg = <0xa0353000 0x1000>;
+ vana-supply = <&ab8500_ldo_ana_reg>;
+ /* This DSI port only has the Low Power / Energy Save clock */
+ clocks = <&prcmu_clk PRCMU_DSI2ESCCLK>;
+ clock-names = "lp";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
+...