linux-kernel - [PATCH 2/4] ARM: dts: imx6sl-tolino-shine2hd: add second uart

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Date:   Wed, 13 Jan 2021 00:15:46 +0100
From:   Andreas Kemnade <andreas@...nade.info>
To:     robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, j.neuschaefer@....net,
        letux-kernel@...nphoenux.org
Cc:     Andreas Kemnade <andreas@...nade.info>
Subject: [PATCH 2/4] ARM: dts: imx6sl-tolino-shine2hd: add second uart

There is another uart next to the console uart used by vendor uboot and
kernel, enable it and document its location.

Signed-off-by: Andreas Kemnade <andreas@...nade.info>
---
 arch/arm/boot/dts/imx6sl-tolino-shine2hd.dts | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6sl-tolino-shine2hd.dts b/arch/arm/boot/dts/imx6sl-tolino-shine2hd.dts
index e17c75c360f2..6ea5f918d059 100644
--- a/arch/arm/boot/dts/imx6sl-tolino-shine2hd.dts
+++ b/arch/arm/boot/dts/imx6sl-tolino-shine2hd.dts
@@ -340,7 +340,6 @@
 			MX6SL_PAD_KEY_ROW7__GPIO4_IO07		0x79
 			MX6SL_PAD_ECSPI2_MOSI__GPIO4_IO13	0x79
 			MX6SL_PAD_KEY_COL5__GPIO4_IO02		0x79
-			MX6SL_PAD_KEY_ROW6__GPIO4_IO05		0x79
 		>;
 	};
 
@@ -400,6 +399,13 @@
 		>;
 	};
 
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX6SL_PAD_KEY_ROW6__UART4_TX_DATA 0x1b0b1
+			MX6SL_PAD_KEY_COL6__UART4_RX_DATA 0x1b0b1
+		>;
+	};
+
 	pinctrl_usbotg1: usbotg1grp {
 		fsl,pins = <
 			MX6SL_PAD_EPDC_PWRCOM__USB_OTG1_ID 0x17059
@@ -549,6 +555,13 @@
 	status = "okay";
 };
 
+&uart4 {
+	/* TP198, next to J4, SMD pads */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
 &usdhc2 {
 	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
 	pinctrl-0 = <&pinctrl_usdhc2>;
-- 
2.20.1