linux-kernel - [PATCH v7 11/15] dt-bindings: display: rockchip: analogix-dp: Add support for RK3588

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Message-Id: <20250224081325.96724-12-damon.ding@rock-chips.com>
Date: Mon, 24 Feb 2025 16:13:21 +0800
From: Damon Ding <damon.ding@...k-chips.com>
To: heiko@...ech.de
Cc: andy.yan@...k-chips.com,
	hjc@...k-chips.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	andrzej.hajda@...el.com,
	neil.armstrong@...aro.org,
	rfoss@...nel.org,
	Laurent.pinchart@...asonboard.com,
	jonas@...boo.se,
	jernej.skrabec@...il.com,
	dmitry.baryshkov@...aro.org,
	dianders@...omium.org,
	sebastian.reichel@...labora.com,
	cristian.ciocaltea@...labora.com,
	boris.brezillon@...labora.com,
	l.stach@...gutronix.de,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Damon Ding <damon.ding@...k-chips.com>
Subject: [PATCH v7 11/15] dt-bindings: display: rockchip: analogix-dp: Add support for RK3588

Compared with RK3288/RK3399, the HBR2 link rate support is the main
improvement of RK3588 eDP TX controller, and there are also two
independent eDP display interfaces on RK3588 Soc.

The newly added 'apb' reset is to ensure the APB bus of eDP controller
works well on the RK3588 SoC.

Signed-off-by: Damon Ding <damon.ding@...k-chips.com>

---

Changes in v2:
- Add the main defferences of the RK3588 eDP and the previous versions
  in commit message

Changes in v3:
- Expand the property clock-names, resets and reset-names

Changes in v4:
- Remove 'spdif' clock which added in v3
- Add the comment of newly added 'apb' reset in commit message

Changes in v5:
- Put the differences between RK3288/RK3399 and RK3588 into 'allOf'

Changes in v6:
- Keep the widest constraints and add only RK3588 related constraints
  into 'allOf'

Changes in v7:
- Fix the errors related to 'reset-names'
- Remove unnecessary 'maxItems' under 'reset-names'
---
 .../rockchip/rockchip,analogix-dp.yaml        | 22 +++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
index eaf4e67e232e..d99b23b88cc5 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
@@ -15,6 +15,7 @@ properties:
     enum:
       - rockchip,rk3288-dp
       - rockchip,rk3399-edp
+      - rockchip,rk3588-edp
 
   clocks:
     minItems: 2
@@ -31,10 +32,14 @@ properties:
     maxItems: 1
 
   resets:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   reset-names:
-    const: dp
+    minItems: 1
+    items:
+      - const: dp
+      - const: apb
 
   rockchip,grf:
     $ref: /schemas/types.yaml#/definitions/phandle
@@ -55,6 +60,19 @@ required:
 allOf:
   - $ref: /schemas/display/bridge/analogix,dp.yaml#
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rk3588-edp
+    then:
+      properties:
+        resets:
+          minItems: 2
+        reset-names:
+          minItems: 2
+
 unevaluatedProperties: false
 
 examples:
-- 
2.34.1