Linux-Serial Archive on lore.kernel.org
 help / color / Atom feed
* [PATCH 0/1] tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register
@ 2020-01-23 12:41 Roja Rani Yarubandi
  2020-01-23 12:41 ` [PATCH 1/1] " Roja Rani Yarubandi
  0 siblings, 1 reply; 3+ messages in thread
From: Roja Rani Yarubandi @ 2020-01-23 12:41 UTC (permalink / raw)
  To: Greg Kroah-Hartman
  Cc: akashast, msavaliy, mgautam, skakit, Andy Gross, Bjorn Andersson,
	Jiri Slaby, linux-arm-msm, linux-serial, linux-kernel,
	Roja Rani Yarubandi

Configure UART_IO_MACRO_CTRL register if UART lines are swapped.

Roja Rani Yarubandi (1):
  tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register

 drivers/tty/serial/qcom_geni_serial.c | 6 ++++++
 1 file changed, 6 insertions(+)

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of the Code Aurora Forum, hosted by The Linux Foundation


^ permalink raw reply	[flat|nested] 3+ messages in thread

* [PATCH 1/1] tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register
  2020-01-23 12:41 [PATCH 0/1] tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register Roja Rani Yarubandi
@ 2020-01-23 12:41 ` " Roja Rani Yarubandi
  0 siblings, 0 replies; 3+ messages in thread
From: Roja Rani Yarubandi @ 2020-01-23 12:41 UTC (permalink / raw)
  To: Greg Kroah-Hartman
  Cc: akashast, msavaliy, mgautam, skakit, Andy Gross, Bjorn Andersson,
	Jiri Slaby, linux-arm-msm, linux-serial, linux-kernel,
	Roja Rani Yarubandi

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


^ permalink raw reply	[flat|nested] 3+ messages in thread

* [PATCH 0/1] tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register 
@ 2020-01-23  8:41 " Roja Rani Yarubandi
  0 siblings, 0 replies; 3+ messages in thread
From: Roja Rani Yarubandi @ 2020-01-23  8:41 UTC (permalink / raw)
  To: akashast, msavaliy, mgautam, Andy Gross, Rob Herring,
	Mark Rutland, Greg Kroah-Hartman, Jiri Slaby
  Cc: linux-arm-msm, devicetree, linux-kernel, linux-serial,
	Roja Rani Yarubandi

Configure UART_IO_MACRO_CTRL register if UART lines are swapped.

Roja Rani Yarubandi (1):
  tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register

 arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 1 +
 drivers/tty/serial/qcom_geni_serial.c        | 6 ++++++
 2 files changed, 7 insertions(+)

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of the Code Aurora Forum, hosted by The Linux Foundation


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, back to index

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-01-23 12:41 [PATCH 0/1] tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register Roja Rani Yarubandi
2020-01-23 12:41 ` [PATCH 1/1] " Roja Rani Yarubandi
  -- strict thread matches above, loose matches on Subject: below --
2020-01-23  8:41 [PATCH 0/1] " Roja Rani Yarubandi

Linux-Serial Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-serial/0 linux-serial/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-serial linux-serial/ https://lore.kernel.org/linux-serial \
		linux-serial@vger.kernel.org
	public-inbox-index linux-serial

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-serial


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git