diff mbox series

[v2,08/11] dt-bindings: display: convert PL110/PL111 to DT schema

Message ID 20220506140533.3566431-9-andre.przywara@arm.com
State Accepted, archived
Headers show
Series dt-bindings: Convert Arm Ltd. peripherals to DT schema | expand

Checks

Context Check Description
robh/checkpatch warning total: 0 errors, 2 warnings, 174 lines checked
robh/patch-applied success
robh/dtbs-check warning build log
robh/dt-meta-schema success

Commit Message

Andre Przywara May 6, 2022, 2:05 p.m. UTC
The Arm PL110 and PL111 are IP blocks that provide a display engine with
an LCD interface, being able to drive a variety of LC panels.

Convert the binding over to DT schema, to the DTs can be automatically
checked.
This still contains the deprecated "arm,pl11x,tft-r0g0b0-pads" property,
because this is used by several DTs in the tree.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 .../devicetree/bindings/display/arm,pl11x.txt | 110 -----------
 .../bindings/display/arm,pl11x.yaml           | 174 ++++++++++++++++++
 2 files changed, 174 insertions(+), 110 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/display/arm,pl11x.txt
 create mode 100644 Documentation/devicetree/bindings/display/arm,pl11x.yaml

Comments

Rob Herring (Arm) May 6, 2022, 10:39 p.m. UTC | #1
On Fri, 06 May 2022 15:05:30 +0100, Andre Przywara wrote:
> The Arm PL110 and PL111 are IP blocks that provide a display engine with
> an LCD interface, being able to drive a variety of LC panels.
> 
> Convert the binding over to DT schema, to the DTs can be automatically
> checked.
> This still contains the deprecated "arm,pl11x,tft-r0g0b0-pads" property,
> because this is used by several DTs in the tree.
> 
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
>  .../devicetree/bindings/display/arm,pl11x.txt | 110 -----------
>  .../bindings/display/arm,pl11x.yaml           | 174 ++++++++++++++++++
>  2 files changed, 174 insertions(+), 110 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/display/arm,pl11x.txt
>  create mode 100644 Documentation/devicetree/bindings/display/arm,pl11x.yaml
> 

Running 'make dtbs_check' with the schema in this patch gives the
following warnings. Consider if they are expected or the schema is
incorrect. These may not be new warnings.

Note that it is not yet a requirement to have 0 warnings for dtbs_check.
This will change in the future.

Full log is available here: https://patchwork.ozlabs.org/patch/


clcd@10020000: 'oneOf' conditional failed, one must be fixed:
	arch/arm/boot/dts/arm-realview-eb-11mp-bbrevd-ctrevb.dtb
	arch/arm/boot/dts/arm-realview-eb-11mp-bbrevd.dtb
	arch/arm/boot/dts/arm-realview-eb-11mp-ctrevb.dtb
	arch/arm/boot/dts/arm-realview-eb-11mp.dtb
	arch/arm/boot/dts/arm-realview-eb-a9mp-bbrevd.dtb
	arch/arm/boot/dts/arm-realview-eb-a9mp.dtb

clcd@31040000: 'interrupt-names' is a required property
	arch/arm/boot/dts/lpc3250-phy3250.dtb

clcd@60000000: 'clock-names' is a required property
	arch/arm/boot/dts/spear300-evb.dtb

clcd@60000000: 'clocks' is a required property
	arch/arm/boot/dts/spear300-evb.dtb

clcd@60000000: 'interrupt-names' is a required property
	arch/arm/boot/dts/spear300-evb.dtb

clcd@60000000: 'port' is a required property
	arch/arm/boot/dts/spear300-evb.dtb

clcd@90000000: 'clock-names' is a required property
	arch/arm/boot/dts/spear320-hmi.dtb

clcd@90000000: 'clocks' is a required property
	arch/arm/boot/dts/spear320-hmi.dtb

clcd@90000000: 'interrupt-names' is a required property
	arch/arm/boot/dts/spear320-hmi.dtb

clcd@90000000: 'port' is a required property
	arch/arm/boot/dts/spear320-hmi.dtb

clcd@c0000000: 'interrupt-names' is a required property
	arch/arm/boot/dts/integratorcp.dtb

clcd@c0000000: 'port@0' does not match any of the regexes: 'pinctrl-[0-9]+'
	arch/arm/boot/dts/integratorcp.dtb

clcd@c0000000: 'port' is a required property
	arch/arm/boot/dts/integratorcp.dtb

clcd@fc200000: 'clock-names' is a required property
	arch/arm/boot/dts/spear600-evb.dtb

clcd@fc200000: 'clocks' is a required property
	arch/arm/boot/dts/spear600-evb.dtb

clcd@fc200000: 'interrupt-names' is a required property
	arch/arm/boot/dts/spear600-evb.dtb

clcd@fc200000: 'port' is a required property
	arch/arm/boot/dts/spear600-evb.dtb

display@1000000: 'interrupt-names' is a required property
	arch/arm/boot/dts/integratorap-im-pd1.dtb

display@1000000: 'port@0' does not match any of the regexes: 'pinctrl-[0-9]+'
	arch/arm/boot/dts/integratorap-im-pd1.dtb

display@1000000: 'port' is a required property
	arch/arm/boot/dts/integratorap-im-pd1.dtb

display@10120000: 'interrupt-names' is a required property
	arch/arm/boot/dts/versatile-ab.dtb
	arch/arm/boot/dts/versatile-ab-ib2.dtb
	arch/arm/boot/dts/versatile-pb.dtb

display@10120000: 'port@0' does not match any of the regexes: 'pinctrl-[0-9]+'
	arch/arm/boot/dts/versatile-ab.dtb
	arch/arm/boot/dts/versatile-ab-ib2.dtb
	arch/arm/boot/dts/versatile-pb.dtb

display@10120000: 'port' is a required property
	arch/arm/boot/dts/versatile-ab.dtb
	arch/arm/boot/dts/versatile-ab-ib2.dtb
	arch/arm/boot/dts/versatile-pb.dtb

lcd@C0000000: 'interrupt-names' is a required property
	arch/arm/boot/dts/nspire-clp.dtb
	arch/arm/boot/dts/nspire-cx.dtb
	arch/arm/boot/dts/nspire-tp.dtb

lcd-controller@40008000: 'resets' does not match any of the regexes: 'pinctrl-[0-9]+'
	arch/arm/boot/dts/lpc4337-ciaa.dtb
	arch/arm/boot/dts/lpc4350-hitex-eval.dtb
	arch/arm/boot/dts/lpc4357-ea4357-devkit.dtb
	arch/arm/boot/dts/lpc4357-myd-lpc4357.dtb
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/arm,pl11x.txt b/Documentation/devicetree/bindings/display/arm,pl11x.txt
deleted file mode 100644
index 3f977e72a2005..0000000000000
--- a/Documentation/devicetree/bindings/display/arm,pl11x.txt
+++ /dev/null
@@ -1,110 +0,0 @@ 
-* ARM PrimeCell Color LCD Controller PL110/PL111
-
-See also Documentation/devicetree/bindings/arm/primecell.yaml
-
-Required properties:
-
-- compatible: must be one of:
-	"arm,pl110", "arm,primecell"
-	"arm,pl111", "arm,primecell"
-
-- reg: base address and size of the control registers block
-
-- interrupt-names: either the single entry "combined" representing a
-	combined interrupt output (CLCDINTR), or the four entries
-	"mbe", "vcomp", "lnbu", "fuf" representing the individual
-	CLCDMBEINTR, CLCDVCOMPINTR, CLCDLNBUINTR, CLCDFUFINTR interrupts
-
-- interrupts: contains an interrupt specifier for each entry in
-	interrupt-names
-
-- clock-names: should contain "clcdclk" and "apb_pclk"
-
-- clocks: contains phandle and clock specifier pairs for the entries
-	in the clock-names property. See
-	Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Optional properties:
-
-- memory-region: phandle to a node describing memory (see
-	Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt)
-	to be used for the framebuffer; if not present, the framebuffer
-	may be located anywhere in the memory
-
-- max-memory-bandwidth: maximum bandwidth in bytes per second that the
-	cell's memory interface can handle; if not present, the memory
-	interface is fast enough to handle all possible video modes
-
-Required sub-nodes:
-
-- port: describes LCD panel signals, following the common binding
-	for video transmitter interfaces; see
-	Documentation/devicetree/bindings/media/video-interfaces.txt
-
-Deprecated properties:
-	The port's endbpoint subnode had this, now deprecated property
-	in the past. Drivers should be able to survive without it:
-
-	- arm,pl11x,tft-r0g0b0-pads: an array of three 32-bit values,
-		defining the way CLD pads are wired up; first value
-		contains index of the "CLD" external pin (pad) used
-		as R0 (first bit of the red component), second value
-	        index of the pad used as G0, third value index of the
-		pad used as B0, see also "LCD panel signal multiplexing
-		details" paragraphs in the PL110/PL111 Technical
-		Reference Manuals; this implicitly defines available
-		color modes, for example:
-		- PL111 TFT 4:4:4 panel:
-			arm,pl11x,tft-r0g0b0-pads = <4 15 20>;
-		- PL110 TFT (1:)5:5:5 panel:
-			arm,pl11x,tft-r0g0b0-pads = <1 7 13>;
-		- PL111 TFT (1:)5:5:5 panel:
-			arm,pl11x,tft-r0g0b0-pads = <3 11 19>;
-		- PL111 TFT 5:6:5 panel:
-			arm,pl11x,tft-r0g0b0-pads = <3 10 19>;
-		- PL110 and PL111 TFT 8:8:8 panel:
-			arm,pl11x,tft-r0g0b0-pads = <0 8 16>;
-		- PL110 and PL111 TFT 8:8:8 panel, R & B components swapped:
-			arm,pl11x,tft-r0g0b0-pads = <16 8 0>;
-
-
-Example:
-
-	clcd@10020000 {
-		compatible = "arm,pl111", "arm,primecell";
-		reg = <0x10020000 0x1000>;
-		interrupt-names = "combined";
-		interrupts = <0 44 4>;
-		clocks = <&oscclk1>, <&oscclk2>;
-		clock-names = "clcdclk", "apb_pclk";
-		max-memory-bandwidth = <94371840>; /* Bps, 1024x768@60 16bpp */
-
-		port {
-			clcd_pads: endpoint {
-				remote-endpoint = <&clcd_panel>;
-			};
-		};
-
-	};
-
-	panel {
-		compatible = "panel-dpi";
-
-		port {
-			clcd_panel: endpoint {
-				remote-endpoint = <&clcd_pads>;
-			};
-		};
-
-		panel-timing {
-			clock-frequency = <25175000>;
-			hactive = <640>;
-			hback-porch = <40>;
-			hfront-porch = <24>;
-			hsync-len = <96>;
-			vactive = <480>;
-			vback-porch = <32>;
-			vfront-porch = <11>;
-			vsync-len = <2>;
-		};
-	};
diff --git a/Documentation/devicetree/bindings/display/arm,pl11x.yaml b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
new file mode 100644
index 0000000000000..c17838c197da8
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
@@ -0,0 +1,174 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/arm,pl11x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm PrimeCell Color LCD Controller PL110/PL111
+
+maintainers:
+  - Liviu Dudau <Liviu.Dudau@arm.com>
+  - Andre Przywara <andre.przywara@arm.com>
+
+description:
+  The Arm Primcell PL010/PL111 is an LCD controller IP, than scans out
+  a framebuffer region in system memory, and creates timed signals for
+  a variety of LCD panels.
+
+# We need a select here so we don't match all nodes with 'arm,primecell'
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - arm,pl110
+          - arm,pl111
+  required:
+    - compatible
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - arm,pl110
+          - arm,pl111
+      - const: arm,primecell
+
+  reg:
+    maxItems: 1
+
+  interrupt-names:
+    oneOf:
+      - const: combined
+        description:
+          The IP provides four individual interrupt lines, but also one
+          combined line. If the integration only connects this line to the
+          interrupt controller, this single interrupt is noted here.
+      - items:
+          - const: mbe        # CLCDMBEINTR
+          - const: vcomp      # CLCDVCOMPINTR
+          - const: lnbu       # CLCDLNBUINTR
+          - const: fuf        # CLCDFUFINTR
+
+  interrupts:
+    minItems: 1
+    maxItems: 4
+
+  clock-names:
+    items:
+      - const: clcdclk
+      - const: apb_pclk
+
+  clocks:
+    items:
+      - description: The CLCDCLK reference clock for the controller.
+      - description: The HCLK AHB slave clock for the register access.
+
+  memory-region:
+    maxItems: 1
+    description:
+      Phandle to a node describing memory to be used for the framebuffer.
+      If not present, the framebuffer may be located anywhere in memory.
+
+  max-memory-bandwidth:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Maximum bandwidth in bytes per second that the cell's memory interface
+      can handle.
+      If not present, the memory interface is fast enough to handle all
+      possible video modes.
+
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    additionalProperties: false
+
+    description:
+      Output endpoint of the controller, connecting the LCD panel signals.
+
+    properties:
+      endpoint:
+        $ref: /schemas/graph.yaml#/$defs/endpoint-base
+        unevaluatedProperties: false
+
+        properties:
+          arm,pl11x,tft-r0g0b0-pads:
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            items:
+              - description: index of CLD pad used for first red bit (R0)
+              - description: index of CLD pad used for first green bit (G0)
+              - description: index of CLD pad used for first blue bit (G0)
+            deprecated: true
+            description: |
+              DEPRECATED. An array of three 32-bit values, defining the way
+              CLD[23:0] pads are wired up.
+              The first value contains the index of the "CLD" external pin (pad)
+              used as R0 (first bit of the red component), the second value for
+              green, the third value for blue.
+              See also "LCD panel signal multiplexing details" paragraphs in the
+              PL110/PL111 Technical Reference Manuals.
+              This implicitly defines available color modes, for example:
+              - PL111 TFT 4:4:4 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <4 15 20>;
+              - PL110 TFT (1:)5:5:5 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <1 7 13>;
+              - PL111 TFT (1:)5:5:5 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <3 11 19>;
+              - PL111 TFT 5:6:5 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <3 10 19>;
+              - PL110 and PL111 TFT 8:8:8 panel:
+                  arm,pl11x,tft-r0g0b0-pads = <0 8 16>;
+              - PL110 and PL111 TFT 8:8:8 panel, R & B components swapped:
+                  arm,pl11x,tft-r0g0b0-pads = <16 8 0>;
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupt-names
+  - interrupts
+  - clock-names
+  - clocks
+  - port
+
+examples:
+  - |
+    clcd@10020000 {
+        compatible = "arm,pl111", "arm,primecell";
+        reg = <0x10020000 0x1000>;
+        interrupt-names = "combined";
+        interrupts = <44>;
+        clocks = <&oscclk1>, <&oscclk2>;
+        clock-names = "clcdclk", "apb_pclk";
+        max-memory-bandwidth = <94371840>; /* Bps, 1024x768@60 16bpp */
+
+        port {
+            clcd_pads: endpoint {
+                remote-endpoint = <&clcd_panel>;
+            };
+        };
+    };
+
+    panel {
+        compatible = "arm,rtsm-display", "panel-dpi";
+        power-supply = <&vcc_supply>;
+
+        port {
+            clcd_panel: endpoint {
+                remote-endpoint = <&clcd_pads>;
+            };
+        };
+
+        panel-timing {
+            clock-frequency = <25175000>;
+            hactive = <640>;
+            hback-porch = <40>;
+            hfront-porch = <24>;
+            hsync-len = <96>;
+            vactive = <480>;
+            vback-porch = <32>;
+            vfront-porch = <11>;
+            vsync-len = <2>;
+        };
+    };
+...