Re: [PATCH 16/26] ARM: omap4-sdp.dts: add display information

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On Wednesday 04 December 2013 05:58 PM, Tomi Valkeinen wrote:
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
  arch/arm/boot/dts/omap4-sdp.dts | 91 +++++++++++++++++++++++++++++++++++++++++
  1 file changed, 91 insertions(+)

diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 5fc3f43c5a81..e3048f849612 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -550,3 +550,94 @@
  	mode = <3>;
  	power = <50>;
  };
+
+&dsi1 {
+	vdds_dsi-supply = <&vcxio>;
+
+	dsi1_out_ep: endpoint {
+		remote-endpoint = <&lcd0_in>;
+		lanes = <0 1 2 3 4 5>;

In the previous revision omapdss DT patchset, the lanes node was a member of the panel DT node, and not the dsi DT node. Any reason to change this? Does it make more sense this way?

I suppose it's more suitable for dsi to hold the property if 2 panels are connected on the same bus. Say, one with 4 data lanes, and other with 2. It would be tricky for the dsi driver to get lane params from 2 different places and merge them somehow.

+	};
+
+	lcd0: display@0 {
+		compatible = "tpo,taal", "panel-dsi-cm";
+
+		gpios = <&gpio4 6 0>;	/* 102, reset */
+
+		lcd0_in: endpoint {
+			remote-endpoint = <&dsi1_out_ep>;
+		};
+	};

Is there a reason why lcd0 and lcd1 are children nodes of dsi1 and dsi2 respectively? I don't see this for panels on other boards.

Archit

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