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Message-Id: <20241126-adpdrm-v2-1-c90485336c09@gmail.com>
Date: Tue, 26 Nov 2024 17:34:20 +0100
From: Sasha Finkelstein via B4 Relay <devnull+fnkl.kernel.gmail.com@...nel.org>
To: Hector Martin <marcan@...can.st>, Sven Peter <sven@...npeter.dev>,
Alyssa Rosenzweig <alyssa@...enzweig.io>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Neil Armstrong <neil.armstrong@...aro.org>,
Jessica Zhang <quic_jesszhan@...cinc.com>, asahi@...ts.linux.dev
Cc: linux-arm-kernel@...ts.infradead.org, dri-devel@...ts.freedesktop.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Sasha Finkelstein <fnkl.kernel@...il.com>
Subject: [PATCH v2 1/5] dt-bindings: display: Add Apple pre-DCP display
controller bindings
From: Sasha Finkelstein <fnkl.kernel@...il.com>
Add bindings for a secondary display controller present on certain
Apple laptops.
Signed-off-by: Sasha Finkelstein <fnkl.kernel@...il.com>
---
.../display/apple,h7-display-pipe-mipi.yaml | 89 ++++++++++++++++++++++
.../bindings/display/apple,h7-display-pipe.yaml | 77 +++++++++++++++++++
.../bindings/display/panel/apple,summit.yaml | 58 ++++++++++++++
3 files changed, 224 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/apple,h7-display-pipe-mipi.yaml b/Documentation/devicetree/bindings/display/apple,h7-display-pipe-mipi.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..2cf2f50e9fc7329a5b424d5ddf8c34cad2ebb6be
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/apple,h7-display-pipe-mipi.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/apple,h7-display-pipe-mipi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple pre-DCP display controller MIPI interface.
+
+maintainers:
+ - asahi@...ts.linux.dev
+ - Sasha Finkelstein <fnkl.kernel@...il.com>
+
+description:
+ The MIPI controller part of the pre-DCP Apple display controller
+
+allOf:
+ - $ref: dsi-controller.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,t8112-display-pipe-mipi
+ - apple,t8103-display-pipe-mipi
+ - const: apple,h7-display-pipe-mipi
+
+ reg:
+ maxItems: 1
+
+ reg-names:
+ const: mipi
+
+ power-domains:
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+
+ required:
+ - port@0
+ - port@1
+
+ '#address-cells': true
+
+ '#size-cells': true
+
+patternProperties:
+ "^panel@[0-3]$": true
+
+required:
+ - compatible
+ - reg
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ display_dfr: dsi@...200000 {
+ compatible = "apple,t8103-display-pipe-mipi", "apple,h7-display-pipe-mipi";
+ reg-names = "mipi";
+ reg = <0x28200000 0xc000>;
+ power-domains = <&ps_dispdfr_mipi>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dfr_mipi_in: port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+
+ dfr_mipi_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/apple,h7-display-pipe.yaml b/Documentation/devicetree/bindings/display/apple,h7-display-pipe.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..98982da9c5f672167d67e4cd3b47e1fbdafc9510
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/apple,h7-display-pipe.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/apple,h7-display-pipe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple pre-DCP display controller.
+
+maintainers:
+ - asahi@...ts.linux.dev
+ - Sasha Finkelstein <fnkl.kernel@...il.com>
+
+description:
+ A secondary display controller used to drive the "touchbar" on certain Apple laptops.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,t8112-display-pipe
+ - apple,t8103-display-pipe
+ - const: apple,h7-display-pipe
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: be
+ - const: fe
+
+ power-domains:
+ maxItems: 2
+
+ interrupts:
+ maxItems: 2
+
+ interrupt-names:
+ items:
+ - const: be
+ - const: fe
+
+ iommus:
+ maxItems: 1
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/apple-aic.h>
+ display_dfr: display-pipe@...200000 {
+ compatible = "apple,t8103-display-pipe", "apple,h7-display-pipe";
+ reg-names = "be", "fe";
+ reg = <0x28200000 0xc000>,
+ <0x28400000 0x4000>;
+ power-domains = <&ps_dispdfr_fe>, <&ps_dispdfr_be>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 502 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 506 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "be", "fe";
+ iommus = <&displaydfr_dart 0>;
+ port {
+ dfr_adp_out_mipi: endpoint {
+ remote-endpoint = <&dfr_mipi_in_adp>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/panel/apple,summit.yaml b/Documentation/devicetree/bindings/display/panel/apple,summit.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..db14f7af3787076c84ccdda08fedeb8912d5514d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/apple,summit.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/apple,summit.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple "Summit" display panel.
+
+maintainers:
+ - asahi@...ts.linux.dev
+ - Sasha Finkelstein <fnkl.kernel@...il.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+ - $ref: /schemas/leds/backlight/common.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,j293-summit
+ - apple,j493-summit
+ - const: apple,summit
+
+ reg:
+ maxItems: 1
+
+ max-brightness: true
+
+ port: true
+
+required:
+ - compatible
+ - reg
+ - max-brightness
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "apple,j293-summit", "apple,summit";
+ reg = <0>;
+ max-brightness = <255>;
+
+ port {
+ dfr_panel_in: endpoint {
+ remote-endpoint = <&dfr_bridge_out>;
+ };
+ };
+ };
+ };
+...
--
2.47.1
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