dts: Generate Kinetis pwm settings from device tree

Adds common and Kinetis-specific pwm device tree properties, and updates
the k64 SoC and board dts files to include all four pwm nodes.

Jira: ZEP-2025

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>

dts/arm/frdm_k64f.dts

@@ -9,6 +9,10 @@
 	aliases {
 		adc_0 = &adc0;
 		adc_1 = &adc1;
+		pwm_0 = &pwm0;
+		pwm_1 = &pwm1;
+		pwm_2 = &pwm2;
+		pwm_3 = &pwm3;
 		uart_0 = &uart0;
 		uart_3 = &uart3;
 		pinmux_a = &pinmux_a;
@@ -49,6 +53,10 @@
 	status = "ok";
 };
 
+&pwm3 {
+	status = "ok";
+};
+
 &uart0 {
 	status = "ok";
 	current-speed = <115200>;

dts/arm/frdm_k64f.fixup

@@ -52,6 +52,11 @@
 #define CONFIG_ADC_1_IRQ_PRI			NXP_KINETIS_ADC16_400BB000_IRQ_0_PRIORITY
 #define CONFIG_ADC_1_NAME			NXP_KINETIS_ADC16_400BB000_LABEL
 
+#define CONFIG_FTM_3_BASE_ADDRESS		NXP_KINETIS_FTM_400B9000_BASE_ADDRESS_0
+#define CONFIG_FTM_3_IRQ			NXP_KINETIS_FTM_400B9000_IRQ_0
+#define CONFIG_FTM_3_IRQ_PRI			NXP_KINETIS_FTM_400B9000_IRQ_0_PRIORITY
+#define CONFIG_FTM_3_NAME			NXP_KINETIS_FTM_400B9000_LABEL
+
 #define CONFIG_I2C_0_NAME			NXP_KINETIS_I2C_40066000_LABEL
 #define CONFIG_FXOS8700_I2C_NAME		NXP_KINETIS_I2C_40066000_LABEL
 #define CONFIG_I2C_MCUX_0_BASE_ADDRESS		NXP_KINETIS_I2C_40066000_BASE_ADDRESS_0

dts/arm/hexiwear_k64.dts

@@ -9,6 +9,10 @@
 	aliases {
 		adc_0 = &adc0;
 		adc_1 = &adc1;
+		pwm_0 = &pwm0;
+		pwm_1 = &pwm1;
+		pwm_2 = &pwm2;
+		pwm_3 = &pwm3;
 		uart_0 = &uart0;
 		uart_4 = &uart4;
 		pinmux_a = &pinmux_a;
@@ -45,6 +49,10 @@
 	status = "ok";
 };
 
+&pwm3 {
+	status = "ok";
+};
+
 &i2c0 {
 	status = "ok";
 };

dts/arm/hexiwear_k64.fixup

@@ -52,6 +52,11 @@
 #define CONFIG_ADC_1_IRQ_PRI			NXP_KINETIS_ADC16_400BB000_IRQ_0_PRIORITY
 #define CONFIG_ADC_1_NAME			NXP_KINETIS_ADC16_400BB000_LABEL
 
+#define CONFIG_FTM_3_BASE_ADDRESS		NXP_KINETIS_FTM_400B9000_BASE_ADDRESS_0
+#define CONFIG_FTM_3_IRQ			NXP_KINETIS_FTM_400B9000_IRQ_0
+#define CONFIG_FTM_3_IRQ_PRI			NXP_KINETIS_FTM_400B9000_IRQ_0_PRIORITY
+#define CONFIG_FTM_3_NAME			NXP_KINETIS_FTM_400B9000_LABEL
+
 #define CONFIG_I2C_0_NAME			NXP_KINETIS_I2C_40066000_LABEL
 #define CONFIG_MAX30101_I2C_NAME		NXP_KINETIS_I2C_40066000_LABEL
 #define CONFIG_I2C_MCUX_0_BASE_ADDRESS		NXP_KINETIS_I2C_40066000_BASE_ADDRESS_0

dts/arm/nxp/nxp_k6x.dtsi

@@ -293,21 +293,39 @@
 		};
 
 		pwm0: pwm@40038000{
-			compatible = "nxp,k64f-pwm";
+			compatible = "nxp,kinetis-ftm";
 			reg = <0x40038000 0x98>;
-			prescaler = <2>;
+			interrupts = <42 0>;
-			period = <1000>;
+			label = "PWM_0";
-			clock-source = <0>;
 			/* channel information needed - fixme */
+			status = "disabled";
 		};
 
 		pwm1: pwm@40039000{
-			compatible = "nxp,k64f-pwm";
+			compatible = "nxp,kinetis-ftm";
 			reg = <0x40039000 0x98>;
-			prescaler = <2>;
+			interrupts = <43 0>;
-			period = <1000>;
+			label = "PWM_1";
-			clock-source = <0>;
 			/* channel information needed - fixme */
+			status = "disabled";
+		};
+
+		pwm2: pwm@4003a000{
+			compatible = "nxp,kinetis-ftm";
+			reg = <0x4003a000 0x98>;
+			interrupts = <43 0>;
+			label = "PWM_2";
+			/* channel information needed - fixme */
+			status = "disabled";
+		};
+
+		pwm3: pwm@400b9000{
+			compatible = "nxp,kinetis-ftm";
+			reg = <0x400b9000 0x98>;
+			interrupts = <71 0>;
+			label = "PWM_3";
+			/* channel information needed - fixme */
+			status = "disabled";
 		};
 
 		adc0: adc@4003b000{

dts/arm/yaml/nxp,kinetis-ftm.yaml

@@ -0,0 +1,35 @@
+#
+# Copyright (c) 2017, NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+---
+title: Kinetis FTM
+id: nxp,kinetis-ftm
+version: 0.1
+
+description: >
+    This binding gives a base representation of the Kinetis FTM
+
+inherits:
+  - !include pwm.yaml
+
+properties:
+  - compatible:
+      type: string
+      category: required
+      description: compatible strings
+      constraint: "nxp,kinetis-ftm"
+
+  - reg:
+      type: array
+      description: mmio register space
+      generation: define
+      category: required
+
+  - interrupts:
+      type: array
+      category: required
+      description: required interrupts
+      generation: define
+...

dts/common/yaml/pwm.yaml

@@ -0,0 +1,26 @@
+#
+# Copyright (c) 2017, NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+---
+title: PWM Base Structure
+id: pwm
+version: 0.1
+
+description: >
+    This binding gives the base structures for all PWM devices
+
+properties:
+  - clocks:
+      type: array
+      category: required
+      description: Clock gate information
+      generation: define
+
+  - label:
+      type: string
+      category: required
+      description: Human readable string describing the device (used by Zephyr for API name)
+      generation: define
+...