On 05/10/2022 08:19, allen.c...@ite.com.tw wrote:
Hi
data-lanes is output configuration. Maybe it is not suitable to put data-lanes
in input endpoint.
extcon doesn't have output endpoint, so I don't know where to put is better.
Ok it wasn't clear enough
Then rename the property to something more specific like:
ite,dp-output-data-lane-count
Use the same naming scheme for the other property:
ite,dp-output-max-pixel-clock-khz
Neil
-----Original Message-----
From: Neil Armstrong <neil.armstr...@linaro.org>
Sent: Thursday, September 29, 2022 4:40 PM
To: Allen Chen (陳柏宇) <allen.c...@ite.com.tw>
Cc: open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS <devicet...@vger.kernel.org>; Kenneth Hung (洪家倫) <kenneth.h...@ite.com.tw>; Jernej Skrabec
<jernej.skra...@gmail.com>; Krzysztof Kozlowski <krzysztof.kozlowski...@linaro.org>; Jau-Chih Tseng (曾昭智) <jau-chih.ts...@ite.com.tw>; David Airlie
<airl...@linux.ie>; open list:DRM DRIVERS <dri-devel@lists.freedesktop.org>; Neil Armstrong <narmstr...@baylibre.com>; open list
<linux-ker...@vger.kernel.org>; Robert Foss <robert.f...@linaro.org>; Pin-yen Lin <treapk...@chromium.org>; Hermes Wu (吳佳宏) <hermes...@ite.com.tw>; Rob
Herring <robh...@kernel.org>; Laurent Pinchart <laurent.pinch...@ideasonboard.com>; Andrzej Hajda <andrzej.ha...@intel.com>; Jonas Karlman
<jo...@kwiboo.se>
Subject: Re: [PATCH v2 1/2] dt-bindings: it6505: add properties to restrict
output bandwidth
Hi,
On 29/09/2022 03:44, allen wrote:
From: allen chen <allen.c...@ite.com.tw>
Add properties to restrict dp output data-lanes and clock.
Signed-off-by: Pin-Yen Lin <treapk...@chromium.org>
Signed-off-by: Allen Chen <allen.c...@ite.com.tw>
---
.../devicetree/bindings/display/bridge/ite,it6505.yaml | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git
a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
index 833d11b2303a..62b9f2192202 100644
--- a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml
@@ -52,6 +52,14 @@ properties:
maxItems: 1
description: extcon specifier for the Power Delivery
+ data-lanes:
+ maxItems: 1
+ description: restrict the dp output data-lanes with value of 1-4
Can't you use the data-lanes property in the first port endpoint ?
Look at Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml
+
+ max-pixel-clock-khz:
+ maxItems: 1
+ description: restrict max pixel clock
New vendor specific properties should have the ite, prefix.
+
port:
$ref: /schemas/graph.yaml#/properties/port
description: A port node pointing to DPI host port node @@ -84,6
+92,8 @@ examples:
pwr18-supply = <&it6505_pp18_reg>;
reset-gpios = <&pio 179 1>;
extcon = <&usbc_extcon>;
+ data-lanes = <2>;
+ max-pixel-clock-khz = <150000>;
port {
it6505_in: endpoint {
Thanks,
Neil
