From: Roja Rani Yarubandi <rojay@codeaurora.org>
To: akashast@codeaurora.org, msavaliy@qti.qualcomm.com,
mgautam@codeaurora.org, Andy Gross <agross@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
Roja Rani Yarubandi <rojay@codeaurora.org>
Subject: [PATCH 1/1] tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register
Date: Thu, 23 Jan 2020 14:11:32 +0530 [thread overview]
Message-ID: <20200123084132.11802-2-rojay@codeaurora.org> (raw)
In-Reply-To: <20200123084132.11802-1-rojay@codeaurora.org>
Configure UART_IO_MACRO_CTRL register if UART lines are swapped.
Change-Id: I8e82c2395bf4cdc51b3677c3c54f5be3f390a888
Signed-off-by: Roja Rani Yarubandi <rojay@codeaurora.org>
---
arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 1 +
drivers/tty/serial/qcom_geni_serial.c | 6 ++++++
2 files changed, 7 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
index 7143cb2dbc05..8a8497ca0ec0 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -675,6 +675,7 @@ ap_spi_fp: &spi10 {
&uart3 {
status = "okay";
+ qcom,pin_inverse = <0x4643>;
bluetooth: bluetooth {
compatible = "qcom,wcn3991-bt";
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index e1767359cc64..939592ca437c 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -25,6 +25,7 @@
/* 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
@@ -1240,6 +1241,7 @@ 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;
@@ -1313,6 +1315,10 @@ static int qcom_geni_serial_probe(struct platform_device *pdev)
if (ret)
return ret;
+ 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
next prev parent reply other threads:[~2020-01-23 8:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-23 8:41 [PATCH 0/1] tty: serial: qcom_geni_serial: Configure UART_IO_MACRO_CTRL register Roja Rani Yarubandi
2020-01-23 8:41 ` Roja Rani Yarubandi [this message]
2020-01-23 9:30 ` [PATCH 1/1] " Greg Kroah-Hartman
2020-01-23 12:41 [PATCH 0/1] " Roja Rani Yarubandi
2020-01-23 12:41 ` [PATCH 1/1] " Roja Rani Yarubandi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200123084132.11802-2-rojay@codeaurora.org \
--to=rojay@codeaurora.org \
--cc=agross@kernel.org \
--cc=akashast@codeaurora.org \
--cc=devicetree@vger.kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=jslaby@suse.com \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mgautam@codeaurora.org \
--cc=msavaliy@qti.qualcomm.com \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).