tests: drivers: build_all: add build for i3c_dw

The Synopsys I3C has no in-tree board with it to built with. This
adds a test build-only for the cadence i3c peripheral attaching
with the qemu_cortex_m3 board as that appears to be generic
enough.

Signed-off-by: Ryan McClelland <[email protected]>

Author: XenuIsWatching

tests/drivers/build_all/i3c/boards/qemu_cortex_m3.overlay

@@ -5,6 +5,12 @@
  */
 
 / {
+	test_fixed_clk: test-fixed-clock {
+		compatible = "fixed-clock";
+		clock-frequency = <200000000>;
+		#clock-cells = <0>;
+	};
+
 	i3c0: i3c@88888888 {
 		compatible = "cdns,i3c";
 		#address-cells = <3>;
@@ -16,4 +22,16 @@
 		i3c-scl-hz = <12500000>;
 		i2c-scl-hz = <400000>;
 	};
+
+	i3c1: i3c@cccccccc {
+		compatible = "snps,designware-i3c";
+		#address-cells = <3>;
+		#size-cells = <0>;
+		reg = <0xcccccccc 0x400>;
+		interrupt-parent = <&nvic>;
+		interrupts = <8 1>;
+		clocks = <&test_fixed_clk>;
+		i3c-scl-hz = <12500000>;
+		i2c-scl-hz = <400000>;
+	};
 };

tests/drivers/build_all/i3c/prj.conf

@@ -4,3 +4,5 @@ CONFIG_I3C=y
 CONFIG_SHELL=y
 CONFIG_I3C_SHELL=y
 CONFIG_I3C_RTIO=y
+CONFIG_CLOCK_CONTROL=y
+CONFIG_CLOCK_CONTROL_FIXED_RATE_CLOCK=y

tests/drivers/build_all/i3c/testcase.yaml

@@ -7,5 +7,5 @@ tests:
   drivers.i3c.build:
     # will cover drivers without in-tree boards
     platform_allow: qemu_cortex_m3
-    tags: i3c_cdns
+    tags: i3c_cdns i3c_dw
     extra_args: "CONFIG_I3C=y"