linux-kernel - [PATCH 1/5] ARM: dts: sun8i: r40: Add pinmux settings for UART3 on PG pingroup

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Message-Id: <20190109150257.12602-2-wens@csie.org>
Date:   Wed,  9 Jan 2019 23:02:53 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: [PATCH 1/5] ARM: dts: sun8i: r40: Add pinmux settings for UART3 on PG pingroup

UART3 on the PG pingroup on the R40 SoC is commonly used to connect the
bluetooth controller in a WiFi+Bluetooth combo chip, with the WiFi bits
also on the PG pingroup.

This patch adds two device nodes for UART3 on PG pingroup, one for the
RX/TX pins, and one for the RTS/CTS pins. Consumers can reference either
just the RX/TX pinmux setting or both, depending on the application.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm/boot/dts/sun8i-r40.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index 89762dbefe42..f1fcfa0bdce0 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -389,6 +389,16 @@
 				pins = "PB22", "PB23";
 				function = "uart0";
 			};
+
+			uart3_pg_pins: uart3-pg-pins {
+				pins = "PG6", "PG7";
+				function = "uart3";
+			};
+
+			uart3_rts_cts_pg_pins: uart3-rts-cts-pg-pins {
+				pins = "PG8", "PG9";
+				function = "uart3";
+			};
 		};
 
 		wdt: watchdog@...0c90 {
-- 
2.20.1