FAN PWM: added fan pwm control fan_pwm

arch/arm64/boot/dts/seco/fsl-imx8mq-seco-c12.dts

@@ -161,6 +161,24 @@
                 default-brightness-level = <80>;
         };
 
+	fan_pwm: fan_pwm@1 {
+                compatible = "pwm-backlight";
+                pwms = <&pwm2 0 100000>;
+
+                brightness-levels = < 0  1  2  3  4  5  6  7  8  9
+                                     10 11 12 13 14 15 16 17 18 19
+                                     20 21 22 23 24 25 26 27 28 29
+                                     30 31 32 33 34 35 36 37 38 39
+                                     40 41 42 43 44 45 46 47 48 49
+                                     50 51 52 53 54 55 56 57 58 59
+                                     60 61 62 63 64 65 66 67 68 69
+                                     70 71 72 73 74 75 76 77 78 79
+                                     80 81 82 83 84 85 86 87 88 89
+                                     90 91 92 93 94 95 96 97 98 99
+                                    100>;
+                default-brightness-level = <80>;
+       	};
+
         lvds_backlight1: lvds_backlight@1 {
                 compatible = "pwm-backlight";
                 pwms = <&pwm3 0 100000>;
@@ -218,7 +236,6 @@
 				MX8MQ_IOMUXC_GPIO1_IO04_GPIO1_IO4               0x19 /* GPIO2 */
 				MX8MQ_IOMUXC_GPIO1_IO05_GPIO1_IO5               0x19 /* GPIO3 */
 				MX8MQ_IOMUXC_GPIO1_IO06_GPIO1_IO6               0x19 /* GPIO4 */
-				MX8MQ_IOMUXC_GPIO1_IO13_GPIO1_IO13               0x19 /* GPIO5 */
 				MX8MQ_IOMUXC_GPIO1_IO10_GPIO1_IO10               0x19 /* GPIO6 */
 				MX8MQ_IOMUXC_GPIO1_IO11_GPIO1_IO11               0x19 /* GPIO7 */
 				MX8MQ_IOMUXC_GPIO1_IO12_GPIO1_IO12               0x19 /* GPIO8 */
@@ -506,6 +523,12 @@
 				>;
 		};
 
+		pinctrl_fan_pwm2: lvds1pwm2grp {
+                                fsl,pins = <
+                                        MX8MQ_IOMUXC_GPIO1_IO13_PWM2_OUT          0x000000d6
+                                >;
+                };
+
 		pinctrl_lvds1_pwm3: lvds1pwm3grp {
 				fsl,pins = <
 					MX8MQ_IOMUXC_SPDIF_TX_PWM3_OUT		0x000000d6
@@ -938,6 +961,13 @@
 	status = "okay";
 };
 
+&pwm2 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&pinctrl_fan_pwm2>;
+        status = "okay";
+};
+
+
 &pwm3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_lvds1_pwm3>;