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Commit 20cf4fa1 authored by Karthikeyan Ramasubramanian's avatar Karthikeyan Ramasubramanian
Browse files

tty: serial: msm_geni_serial: Capture buffer overrun in RX Direction 



Update the buffer overrun statistics in the incoming direction and log the
updated statistics when the condition occurs.

Change-Id: Ic9a2119d0ada78a1c0f6948d14d33029e41aa59b
Signed-off-by: default avatarKarthikeyan Ramasubramanian <kramasub@codeaurora.org>
parent ef0a90a5

drivers/tty/serial/msm_geni_serial.c

+7 −0
Original line number Diff line number Diff line
@@ -1264,6 +1264,13 @@ static irqreturn_t msm_geni_serial_isr(int isr, void *dev) 
		goto exit_geni_serial_isr;

	}



	if (s_irq_status & S_RX_FIFO_WR_ERR_EN) {

		uport->icount.buf_overrun++;

		IPC_LOG_MSG(msm_port->ipc_log_misc,

			"%s.sirq 0x%x buf_overrun:%d\n",

			__func__, s_irq_status, uport->icount.buf_overrun);

	}



	if (!dma) {

		if ((m_irq_status & m_irq_en) &

		    (M_TX_FIFO_WATERMARK_EN | M_CMD_DONE_EN))