From: Tim Harvey <tharvey@gateworks.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Tim Harvey <tharvey@gateworks.com>
Subject: [PATCH] arm64: dts: imx8mm-venice-gw7904: enable UART1 hardware flow control
Date: Tue, 6 Jun 2023 08:38:19 -0700 [thread overview]
Message-ID: <20230606153819.1449257-1-tharvey@gateworks.com> (raw)
On the GW7904 uart1 can use UART3_TX/RX for hardware flow control
which was the desired default configuration. Remove uart3 and configure
uart1 for hardware flow control.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
.../dts/freescale/imx8mm-venice-gw7904.dts | 18 ++++--------------
1 file changed, 4 insertions(+), 14 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts
index 93088fa1c3b9..c12e3f4f800f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts
@@ -636,6 +636,8 @@ &pgc_mipi {
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
+ cts-gpios = <&gpio5 26 GPIO_ACTIVE_LOW>;
+ rts-gpios = <&gpio5 27 GPIO_ACTIVE_LOW>;
status = "okay";
};
@@ -646,13 +648,6 @@ &uart2 {
status = "okay";
};
-/* off-board RS232 */
-&uart3 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_uart3>;
- status = "okay";
-};
-
&usbotg1 {
dr_mode = "host";
disable-over-current;
@@ -814,6 +809,8 @@ pinctrl_uart1: uart1grp {
fsl,pins = <
MX8MM_IOMUXC_UART1_RXD_UART1_DCE_RX 0x140
MX8MM_IOMUXC_UART1_TXD_UART1_DCE_TX 0x140
+ MX8MM_IOMUXC_UART3_RXD_GPIO5_IO26 0x140 /* CTS# in */
+ MX8MM_IOMUXC_UART3_TXD_GPIO5_IO27 0x140 /* RTS# out */
>;
};
@@ -824,13 +821,6 @@ MX8MM_IOMUXC_UART2_TXD_UART2_DCE_TX 0x140
>;
};
- pinctrl_uart3: uart3grp {
- fsl,pins = <
- MX8MM_IOMUXC_UART3_RXD_UART3_DCE_RX 0x140
- MX8MM_IOMUXC_UART3_TXD_UART3_DCE_TX 0x140
- >;
- };
-
pinctrl_usdhc2: usdhc2grp {
fsl,pins = <
MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x190
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2023-06-06 15:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-06 15:38 Tim Harvey [this message]
2023-07-17 0:15 ` [PATCH] arm64: dts: imx8mm-venice-gw7904: enable UART1 hardware flow control Shawn Guo
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=20230606153819.1449257-1-tharvey@gateworks.com \
--to=tharvey@gateworks.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=festevam@gmail.com \
--cc=kernel@pengutronix.de \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-imx@nxp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=robh+dt@kernel.org \
--cc=s.hauer@pengutronix.de \
--cc=shawnguo@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