lkml.org 
[lkml]   [2020]   [Jan]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 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..68b11b6ad3be 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
\
 
 \ /
  Last update: 2020-01-23 13:43    [W:0.042 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site