Merge "serial: msm_geni_serial: Log UART CTS and RX IO line status" (0a41f802) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/tty/serial/msm_geni_serial.c

+6 −3

Original line number	Original line	Diff line number	Diff line
	@@ -483,6 +483,7 @@ static void wait_for_transfers_inflight(struct uart_port *uport)
	int iter = 0;		int iter = 0;
	struct msm_geni_serial_port *port = GET_DEV_PORT(uport);		struct msm_geni_serial_port *port = GET_DEV_PORT(uport);
	unsigned int geni_status;		unsigned int geni_status;
			bool CTS, RX;

	geni_status = geni_read_reg_nolog(uport->membase, SE_GENI_STATUS);		geni_status = geni_read_reg_nolog(uport->membase, SE_GENI_STATUS);
	/* Possible stop rx is called before this. */		/* Possible stop rx is called before this. */
	@@ -506,10 +507,12 @@ static void wait_for_transfers_inflight(struct uart_port *uport)
	SE_GENI_RX_FIFO_STATUS);		SE_GENI_RX_FIFO_STATUS);
	u32 rx_dma =		u32 rx_dma =
	geni_read_reg_nolog(uport->membase, SE_DMA_RX_LEN_IN);		geni_read_reg_nolog(uport->membase, SE_DMA_RX_LEN_IN);
			CTS = geni_ios & BIT(1); // b[1] = UART CTS <- Peer RFR
			RX = geni_ios & BIT(0); // b[0] = UART RX <- Peer TX

	IPC_LOG_MSG(port->ipc_log_misc,		IPC_LOG_MSG(port->ipc_log_misc,
	"%s IOS 0x%x geni status 0x%x rx: fifo 0x%x dma 0x%x\n",		"%s: geni=0x%x rx_fifo=0x%x rx_dma=0x%x, CTS_IO=%d, RX_IO=%d\n",
	__func__, geni_ios, geni_status, rx_fifo_status, rx_dma);		__func__, geni_status, rx_fifo_status, rx_dma, CTS, RX);
	}		}
	}		}

	@@ -1766,7 +1769,7 @@ static int msm_geni_serial_handle_dma_tx(struct uart_port *uport)
	*/		*/
	if (!uart_console(uport)) {		if (!uart_console(uport)) {
	IPC_LOG_MSG(msm_port->ipc_log_misc,		IPC_LOG_MSG(msm_port->ipc_log_misc,
	"%s.Power Off.\n", __func__);		"%s.Tx sent out, Power off\n", __func__);
	msm_geni_serial_power_off(uport);		msm_geni_serial_power_off(uport);
	}		}
	uart_write_wakeup(uport);		uart_write_wakeup(uport);