[参考译文] CC2340R5：Zephyr LP_em_cc2340r53.dts 为 PWM_RED 定义了错误的 PWM 通道

https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/1624740/cc2340r5-zephyr-lp_em_cc2340r53-dts-defines-wrong-pwm-channel-for-pwm_red

器件型号： CC2340R5

您好：

我迷惑了 Zephyr 中用于 CC2340 的 PWM 计时器、 在 lp_em_cc2340r53.dts 中我注意到我们定义了 pwmleds 节点、如下所示：

	pwmleds {
		compatible = "pwm-leds";

		pwm_green: pwm_led_0 {
			pwms = <&pwm6 0 1000 PWM_POLARITY_NORMAL>;
			label = "Green PWM LED";
		};

		pwm_red: pwm_led_1 {
			pwms = <&pwm5 0 1000 PWM_POLARITY_NORMAL>;
			label = "Red PWM LED";
		};
	};

但是、pwm5 为 lgpt1_chan2、因此通过器件树引用 PWM_RED 不会导致正确更新计时器捕获比较寄存器。

为此、我们需要将.dts 更改为以下格式、以便 PWM 驱动程序更新正确的通道：

	pwmleds {
		compatible = "pwm-leds";

		pwm_green: pwm_led_0 {
			pwms = <&pwm6 0 1000 PWM_POLARITY_NORMAL>;
			label = "Green PWM LED";
		};

		pwm_red: pwm_led_1 {
			pwms = <&pwm5 2 1000 PWM_POLARITY_NORMAL>;
			label = "Red PWM LED";
		};
	};

Munan