tests: drivers: build_all: stepper: add diag0 test case

Added second tmc51xx node with diag0 interrupt pin.

Signed-off-by: Dipak Shetty <shetty.dipak@gmx.com>

Author: dipakgmx

tests/drivers/build_all/stepper/spi.dtsi

@@ -80,7 +80,7 @@ adi_tmc50xx: adi_tmc50xx@0 {
 	};
 };
 
-adi_tmc51xx: adi_tmc51xx@1 {
+adi_tmc51xx_1: adi_tmc51xx@1 {
 	compatible = "adi,tmc51xx";
 	status = "okay";
 	reg = <0x01>;
@@ -99,9 +99,51 @@ adi_tmc51xx: adi_tmc51xx@1 {
 
 	/* ADI TMC stallguard settings specific to TMC5160 */
 	activate-stallguard2;
-	stallguard-velocity-check-interval-ms=<100>;
-	stallguard2-threshold=<9>;
-	stallguard-threshold-velocity=<50000>;
+	stallguard-velocity-check-interval-ms = <100>;
+	stallguard2-threshold = <9>;
+	stallguard-threshold-velocity = <50000>;
+
+	/* ADI TMC ramp generator as well as current settings */
+	vstart = <10>;
+	a1 = <20>;
+	v1 = <30>;
+	d1 = <40>;
+	vmax = <50>;
+	amax = <60>;
+	dmax = <70>;
+	tzerowait = <80>;
+	thigh = <90>;
+	tcoolthrs = <100>;
+	tpwmthrs = <110>;
+	tpowerdown = <120>;
+	ihold = <1>;
+	irun = <2>;
+	iholddelay = <3>;
+};
+
+adi_tmc51xx_2: adi_tmc51xx@2 {
+	compatible = "adi,tmc51xx";
+	status = "okay";
+	reg = <0x01>;
+	spi-max-frequency = <8000000>;
+	label = "tmc5160_2";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+	diag0-gpios = <&test_gpio 0x01 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* DIAG pin @0x01 */
+
+	en-pwm-mode; test-mode; /* ADI TMC Global configuration flags */
+	clock-frequency = <16000000>; /* Internal/External Clock frequency */
+
+	/* common stepper controller settings */
+	invert-direction;
+	micro-step-res = <256>;
+
+	/* ADI TMC stallguard settings specific to TMC5160 */
+	activate-stallguard2;
+	stallguard-velocity-check-interval-ms = <100>;
+	stallguard2-threshold = <9>;
+	stallguard-threshold-velocity = <50000>;
 
 	/* ADI TMC ramp generator as well as current settings */
 	vstart = <10>;