linux-kernel - [PATCH v8 04/11] dt-bindings: drm/aux-bus: Add an example

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Message-Id: <20210524165920.v8.4.I79c7ed8815a07d285dd3b38e680e980d1024dbf1@changeid>
Date:   Mon, 24 May 2021 17:01:52 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Sam Ravnborg <sam@...nborg.org>
Cc:     linux-arm-msm@...r.kernel.org, Linus W <linus.walleij@...aro.org>,
        Lyude Paul <lyude@...hat.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Steev Klimaszewski <steev@...i.org>, robdclark@...omium.org,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Thierry Reding <treding@...dia.com>,
        dri-devel@...ts.freedesktop.org,
        Stanislav Lisovskiy <stanislav.lisovskiy@...el.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v8 04/11] dt-bindings: drm/aux-bus: Add an example

Now that we have an eDP controller that lists aux-bus, we can safely
add an example to the aux-bus bindings.

NOTE: this example is just a copy of the one in the 'ti-sn65dsi86'
one. It feels useful to have the example in both places simply because
it's important to document the interaction between the two bindings in
both places.

Signed-off-by: Douglas Anderson <dianders@...omium.org>
---

Changes in v8:
- Separate DP AUX bus binding is new for v8.

 .../bindings/display/dp-aux-bus.yaml          | 65 +++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/dp-aux-bus.yaml b/Documentation/devicetree/bindings/display/dp-aux-bus.yaml
index 5e4afe9f98fb..43494d2a32a1 100644
--- a/Documentation/devicetree/bindings/display/dp-aux-bus.yaml
+++ b/Documentation/devicetree/bindings/display/dp-aux-bus.yaml
@@ -35,3 +35,68 @@ additionalProperties: false
 
 required:
   - panel
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      bridge@2d {
+        compatible = "ti,sn65dsi86";
+        reg = <0x2d>;
+
+        interrupt-parent = <&tlmm>;
+        interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+
+        enable-gpios = <&tlmm 102 GPIO_ACTIVE_HIGH>;
+
+        vpll-supply = <&src_pp1800_s4a>;
+        vccio-supply = <&src_pp1800_s4a>;
+        vcca-supply = <&src_pp1200_l2a>;
+        vcc-supply = <&src_pp1200_l2a>;
+
+        clocks = <&rpmhcc RPMH_LN_BB_CLK2>;
+        clock-names = "refclk";
+
+        no-hpd;
+
+        ports {
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          port@0 {
+            reg = <0>;
+            endpoint {
+              remote-endpoint = <&dsi0_out>;
+            };
+          };
+
+          port@1 {
+            reg = <1>;
+            sn65dsi86_out: endpoint {
+              remote-endpoint = <&panel_in_edp>;
+            };
+          };
+        };
+
+        aux-bus {
+          panel {
+            compatible = "boe,nv133fhm-n62";
+            power-supply = <&pp3300_dx_edp>;
+            backlight = <&backlight>;
+            hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>;
+
+            port {
+              panel_in_edp: endpoint {
+                remote-endpoint = <&sn65dsi86_out>;
+              };
+            };
+          };
+        };
+      };
+    };
-- 
2.31.1.818.g46aad6cb9e-goog