usb-c: tcpc: Add support for Dead Battery (cc416a8b) · Commits · Wenxi XU / zephyr

drivers/usb_c/tcpc/ucpd_stm32.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -1382,6 +1382,20 @@ static int ucpd_init(const struct device *dev)
		/* Enable UCPD port */
		LL_UCPD_Enable(config->ucpd_port);

		/* Enable Dead Battery Support */
		if (config->ucpd_dead_battery) {
		#ifdef CONFIG_SOC_SERIES_STM32G0X
		uint32_t cr;

		cr = LL_UCPD_ReadReg(config->ucpd_port, CR);
		cr \|= UCPD_CR_DBATTEN;
		LL_UCPD_WriteReg(config->ucpd_port, CR, cr);
		update_stm32g0x_cc_line(config->ucpd_port);
		#else
		CLEAR_BIT(PWR->CR3, PWR_CR3_UCPD_DBDIS);
		#endif
		}

		/* Initialize the isr */
		ucpd_isr_init(dev);
		} else {
		@@ -1445,6 +1459,7 @@ BUILD_ASSERT(DT_NUM_INST_STATUS_OKAY(DT_DRV_COMPAT) > 0,
		.ucpd_params.transwin = DT_INST_PROP(inst, transwin) - 1, \
		.ucpd_params.IfrGap = DT_INST_PROP(inst, ifrgap) - 1, \
		.ucpd_params.HbitClockDiv = DT_INST_PROP(inst, hbitclkdiv) - 1, \
		.ucpd_dead_battery = DT_INST_PROP(inst, dead_battery), \
		}; \
		DEVICE_DT_INST_DEFINE(inst, \
		&ucpd_init, \

+8 −0

Original line number	Diff line number	Diff line
		@@ -84,6 +84,12 @@
		UCPD_ICR_TXMSGSENTCF \| \
		UCPD_ICR_TXMSGDISCCF)

		/**
		* @brief For STM32G0X devices, this macro enables
		* Dead Battery functionality
		*/
		#define UCPD_CR_DBATTEN BIT(15)

		/**
		* @brief Map UCPD ANASUB value to TCPC RP value
		*
		@@ -259,6 +265,8 @@ struct tcpc_config {
		UCPD_TypeDef *ucpd_port;
		/* STM32 UCPD parameters */
		LL_UCPD_InitTypeDef ucpd_params;
		/* STM32 UCPD dead battery support */
		bool ucpd_dead_battery;
		};

		/**

+6 −0

Original line number	Diff line number	Diff line
		@@ -63,6 +63,12 @@ properties:
		half-bit clock (hbit_clk)
		Valid range: 1 - 64

		dead-battery:
		type: boolean
		description: \|
		Determine if USB-C Dead Battery pull-down's should be
		applied to the CC lines.

		pinctrl-0:
		required: true