[PATCH v5 2/6] arm64: dts: renesas: salvator-x: Add DU external dot clock sources

[Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>]

The DU1 and DU2 external dot clocks are fixed frequency clock generators
running at 33MHz, while the DU0 and DU3 external dot clocks are
generated by an I2C-controlled programmable clock generator.

All those clock generators are available on both the H3 and M3-W
Salvator-X boards. Add them to the salvator-x.dtsi file.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
Changes since v4:

- Split clocks to a new patch
- Merged the two i2c4 blocks
---
 arch/arm64/boot/dts/renesas/salvator-x.dtsi | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/salvator-x.dtsi b/arch/arm64/boot/dts/renesas/salvator-x.dtsi
index 551946bbbd9c..3fc60ba41229 100644
--- a/arch/arm64/boot/dts/renesas/salvator-x.dtsi
+++ b/arch/arm64/boot/dts/renesas/salvator-x.dtsi
@@ -188,6 +188,25 @@
 		#clock-cells = <0>;
 		clock-frequency = <24576000>;
 	};
+
+	/* External DU dot clocks */
+	x21_clk: x21-clock {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <33000000>;
+	};
+
+	x22_clk: x22-clock {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <33000000>;
+	};
+
+	x23_clk: x23-clock {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <25000000>;
+	};
 };
 
 &audio_clk_a {
@@ -296,6 +315,14 @@
 &i2c4 {
 	status = "okay";
 
+	versaclock5: clock-generator@6a {
+		compatible = "idt,5p49v5923";
+		reg = <0x6a>;
+		#clock-cells = <1>;
+		clocks = <&x23_clk>;
+		clock-names = "xin";
+	};
+
 	csa_vdd: adc@7c {
 		compatible = "maxim,max9611";
 		reg = <0x7c>;
-- 
Regards,

Laurent Pinchart