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Message-Id: <20220919-v3-2-a803f2660127@baylibre.com>
Date: Fri, 04 Nov 2022 15:09:48 +0100
From: Guillaume Ranquet <granquet@...libre.com>
To: Rob Herring <robh+dt@...nel.org>,
Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Chunfeng Yun <chunfeng.yun@...iatek.com>,
Jitao shi <jitao.shi@...iatek.com>,
Matthias Brugger <matthias.bgg@...il.com>,
Vinod Koul <vkoul@...nel.org>, CK Hu <ck.hu@...iatek.com>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...il.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Kishon Vijay Abraham I <kishon@...com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
linux-arm-kernel@...ts.infradead.org, stuart.lee@...iatek.com,
linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
Guillaume Ranquet <granquet@...libre.com>,
mac.shen@...iatek.com, linux-phy@...ts.infradead.org
Subject: [PATCH v3 02/12] dt-bindings: display: mediatek: add MT8195 hdmi bindings
Add mt8195 SoC bindings for hdmi and hdmi-ddc
On mt8195 the ddc i2c controller is part of the hdmi IP block and thus has no
specific register range, power domain or interrupt, making it simpler
than its the legacy "mediatek,hdmi-ddc" binding.
Signed-off-by: Guillaume Ranquet <granquet@...libre.com>
---
.../bindings/display/mediatek/mediatek,hdmi.yaml | 61 ++++++++++++++++++----
.../display/mediatek/mediatek,mt8195-hdmi-ddc.yaml | 51 ++++++++++++++++++
2 files changed, 101 insertions(+), 11 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
index bdaf0b51e68c..9710b7b6e9bf 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
@@ -21,6 +21,7 @@ properties:
- mediatek,mt7623-hdmi
- mediatek,mt8167-hdmi
- mediatek,mt8173-hdmi
+ - mediatek,mt8195-hdmi
reg:
maxItems: 1
@@ -29,18 +30,12 @@ properties:
maxItems: 1
clocks:
- items:
- - description: Pixel Clock
- - description: HDMI PLL
- - description: Bit Clock
- - description: S/PDIF Clock
+ minItems: 4
+ maxItems: 4
clock-names:
- items:
- - const: pixel
- - const: pll
- - const: bclk
- - const: spdif
+ minItems: 4
+ maxItems: 4
phys:
maxItems: 1
@@ -58,6 +53,9 @@ properties:
description: |
phandle link and register offset to the system configuration registers.
+ power-domains:
+ maxItems: 1
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
@@ -86,9 +84,50 @@ required:
- clock-names
- phys
- phy-names
- - mediatek,syscon-hdmi
- ports
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt8195-hdmi
+ then:
+ properties:
+ clocks:
+ items:
+ - description: APB
+ - description: HDCP
+ - description: HDCP 24M
+ - description: Split HDMI
+ clock-names:
+ items:
+ - const: hdmi_apb_sel
+ - const: hdcp_sel
+ - const: hdcp24_sel
+ - const: split_hdmi
+
+ required:
+ - power-domains
+ else:
+ properties:
+ clocks:
+ items:
+ - description: Pixel Clock
+ - description: HDMI PLL
+ - description: Bit Clock
+ - description: S/PDIF Clock
+
+ clock-names:
+ items:
+ - const: pixel
+ - const: pll
+ - const: bclk
+ - const: spdif
+
+ required:
+ - mediatek,syscon-hdmi
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml
new file mode 100644
index 000000000000..2dc273689584
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek HDMI DDC for mt8195
+
+maintainers:
+ - CK Hu <ck.hu@...iatek.com>
+ - Jitao shi <jitao.shi@...iatek.com>
+
+description: |
+ The HDMI DDC i2c controller is used to interface with the HDMI DDC pins.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt8195-hdmi-ddc
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: ddc
+
+ mediatek,hdmi:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ A phandle to the mt8195 hdmi controller
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ hdmiddc0: i2c {
+ compatible = "mediatek,mt8195-hdmi-ddc";
+ mediatek,hdmi = <&hdmi0>;
+ clocks = <&clk26m>;
+ clock-names = "ddc";
+ };
+
+...
--
b4 0.11.0-dev
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