[v2,3/4] arm64: dts: renesas: white-hawk-csi-dsi: Define CSI-2 data line orders

Commit Message

Niklas Söderlund Nov. 21, 2024, 1:41 p.m. UTC

The second CSI-2 C-PHY data-lane have a different line order (BCA) then
the two other data-lanes (ABC) for both connected CSI-2 receivers,
describe this in the device tree.

This have worked in the past as the R-Car CSI-2 driver did not have
documentation for the line order configuration and a magic value was
written to the register for this specific setup. Now the registers
involved are documented and the hardware description as well as the
driver needs to be corrected.

Signed-off-by: Niklas Söderlund <[e-mail]>
---
 arch/arm64/boot/dts/renesas/white-hawk-csi-dsi.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

Patch

diff --git a/arch/arm64/boot/dts/renesas/white-hawk-csi-dsi.dtsi b/arch/arm64/boot/dts/renesas/white-hawk-csi-dsi.dtsi
index 3006b0a64f41..a5d1c1008e7e 100644
--- a/arch/arm64/boot/dts/renesas/white-hawk-csi-dsi.dtsi
+++ b/arch/arm64/boot/dts/renesas/white-hawk-csi-dsi.dtsi
@@ -21,6 +21,9 @@  csi40_in: endpoint {
 				bus-type = <MEDIA_BUS_TYPE_CSI2_CPHY>;
 				clock-lanes = <0>;
 				data-lanes = <1 2 3>;
+				line-orders = <MEDIA_BUS_CSI2_CPHY_LINE_ORDER_ABC
+					       MEDIA_BUS_CSI2_CPHY_LINE_ORDER_BCA
+					       MEDIA_BUS_CSI2_CPHY_LINE_ORDER_ABC>;
 				remote-endpoint = <&max96712_out0>;
 			};
 		};
@@ -41,6 +44,9 @@  csi41_in: endpoint {
 				bus-type = <MEDIA_BUS_TYPE_CSI2_CPHY>;
 				clock-lanes = <0>;
 				data-lanes = <1 2 3>;
+				line-orders = <MEDIA_BUS_CSI2_CPHY_LINE_ORDER_ABC
+					       MEDIA_BUS_CSI2_CPHY_LINE_ORDER_BCA
+					       MEDIA_BUS_CSI2_CPHY_LINE_ORDER_ABC>;
 				remote-endpoint = <&max96712_out1>;
 			};
 		};