[PATCH v12 2/2] arm64: dts: imx8ulp: Add MIPI CSI-2 and ISI nodes

[Guoniu Zhou]

The MIPI CSI-2 in the i.MX8ULP is almost identical to the version present
in the i.MX8QXP/QM and is routed to the ISI. Add both the MIPI CSI-2 and
ISI nodes, disabled by default, as they require an attached camera sensor
to function.

Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Guoniu Zhou <guoniu.zhou@xxxxxxxxxxx>
---
Changes in v12:
- Swap ISI axi and apb clocks to align with dt-binding requirements
- Update commit message

Changes in v11:
- Removed #include <dt-bindings/reset/imx8ulp-pcc-reset.h> which was
  deleted by Rob's dt-bindings cleanup series [2]
- Replaced reset macros with numeric values and added comments to
  document the reset indices

Changes in v1-v10:
- See cover letter
---
 arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 66 ++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
index 9b5d98766512..c5cae7675ce0 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
@@ -859,6 +859,72 @@ spdif: spdif@2dab0000 {
 				dma-names = "rx", "tx";
 				status = "disabled";
 			};
+
+			isi: isi@2dac0000 {
+				compatible = "fsl,imx8ulp-isi";
+				reg = <0x2dac0000 0x10000>;
+				interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&cgc2 IMX8ULP_CLK_LPAV_AXI_DIV>,
+					 <&pcc5 IMX8ULP_CLK_ISI>;
+				clock-names = "axi", "apb";
+				power-domains = <&scmi_devpd IMX8ULP_PD_ISI>;
+				status = "disabled";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+						isi_in: endpoint {
+							remote-endpoint = <&mipi_csi_out>;
+						};
+					};
+				};
+			};
+
+			mipi_csi: csi@2daf0000 {
+				compatible = "fsl,imx8ulp-mipi-csi2";
+				reg = <0x2daf0000 0x10000>,
+				      <0x2dad0000 0x10000>;
+				clocks = <&pcc5 IMX8ULP_CLK_CSI>,
+					 <&pcc5 IMX8ULP_CLK_CSI_CLK_ESC>,
+					 <&pcc5 IMX8ULP_CLK_CSI_CLK_UI>,
+					 <&pcc5 IMX8ULP_CLK_CSI_REGS>;
+				clock-names = "core", "esc", "ui", "pclk";
+				assigned-clocks = <&pcc5 IMX8ULP_CLK_CSI>,
+						  <&pcc5 IMX8ULP_CLK_CSI_CLK_ESC>,
+						  <&pcc5 IMX8ULP_CLK_CSI_CLK_UI>,
+						  <&pcc5 IMX8ULP_CLK_CSI_REGS>;
+				assigned-clock-parents = <&cgc2 IMX8ULP_CLK_PLL4_PFD1_DIV1>,
+							 <&cgc2 IMX8ULP_CLK_PLL4_PFD1_DIV2>,
+							 <&cgc2 IMX8ULP_CLK_PLL4_PFD0_DIV1>;
+				assigned-clock-rates = <200000000>,
+						       <80000000>,
+						       <100000000>,
+						       <79200000>;
+				power-domains = <&scmi_devpd IMX8ULP_PD_MIPI_CSI>;
+				resets = <&pcc5 5>,	/* PCC5_CSI_REGS_SWRST */
+					 <&pcc5 6>;	/* PCC5_CSI_SWRST> */
+				status = "disabled";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+					};
+
+					port@1 {
+						reg = <1>;
+
+						mipi_csi_out: endpoint {
+							remote-endpoint = <&isi_in>;
+						};
+					};
+				};
+			};
 		};
 
 		gpiod: gpio@2e200000 {

-- 
2.34.1