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    Subject[PATCH v2 1/1] tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register
    Date
    Configure UART_IO_MACRO_CTRL register if UART lines are swapped.

    Signed-off-by: Roja Rani Yarubandi <rojay@codeaurora.org>
    ---
    drivers/tty/serial/qcom_geni_serial.c | 6 ++++++
    1 file changed, 6 insertions(+)

    diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
    index ff63728a95f4..24b862937c1e 100644
    --- a/drivers/tty/serial/qcom_geni_serial.c
    +++ b/drivers/tty/serial/qcom_geni_serial.c
    @@ -24,6 +24,7 @@

    /* UART specific GENI registers */
    #define SE_UART_LOOPBACK_CFG 0x22c
    +#define SE_UART_IO_MACRO_CTRL 0x240
    #define SE_UART_TX_TRANS_CFG 0x25c
    #define SE_UART_TX_WORD_LEN 0x268
    #define SE_UART_TX_STOP_BIT_LEN 0x26c
    @@ -1260,6 +1261,7 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
    int irq;
    bool console = false;
    struct uart_driver *drv;
    + u32 val;

    if (of_device_is_compatible(pdev->dev.of_node, "qcom,geni-debug-uart"))
    console = true;
    @@ -1309,6 +1311,10 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
    return irq;
    uport->irq = irq;

    + ret = of_property_read_u32(pdev->dev.of_node, "qcom,pin_inverse", &val);
    + if (!ret)
    + writel(val, uport->membase + SE_UART_IO_MACRO_CTRL);
    +
    irq_set_status_flags(uport->irq, IRQ_NOAUTOEN);
    ret = devm_request_irq(uport->dev, uport->irq, qcom_geni_serial_isr,
    IRQF_TRIGGER_HIGH, port->name, uport);
    --
    QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
    of the Code Aurora Forum, hosted by The Linux Foundation
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