linux-kernel - [PATCH 4/5] ARM: dts: ux500: Add pin configs for UART1 CTS/RTS pins

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Date:   Mon, 25 Nov 2019 13:22:55 +0100
From:   Stephan Gerhold <stephan@...hold.net>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Stephan Gerhold <stephan@...hold.net>
Subject: [PATCH 4/5] ARM: dts: ux500: Add pin configs for UART1 CTS/RTS pins

UART1 an be optionally used with additional CTS/RTS pins.
The pinctrl driver has an extra "u1ctsrts_a_1" pin group for them.

Add a new pin configuration to configure them correctly if needed.

Signed-off-by: Stephan Gerhold <stephan@...hold.net>
---
 arch/arm/boot/dts/ste-dbx5x0-pinctrl.dtsi | 26 +++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0-pinctrl.dtsi b/arch/arm/boot/dts/ste-dbx5x0-pinctrl.dtsi
index b6d0a60e9aed..e85a08ad2ea7 100644
--- a/arch/arm/boot/dts/ste-dbx5x0-pinctrl.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0-pinctrl.dtsi
@@ -65,6 +65,32 @@
 				ste,config = <&slpm_out_wkup_pdis>;
 			};
 		};
+
+		u1ctsrts_a_1_default: u1ctsrts_a_1_default {
+			default_mux {
+				function = "u1";
+				groups = "u1ctsrts_a_1";
+			};
+			default_cfg1 {
+				pins = "GPIO6_AF6"; /* CTS */
+				ste,config = <&in_pu>;
+			};
+			default_cfg2 {
+				pins = "GPIO7_AG5"; /* RTS */
+				ste,config = <&out_hi>;
+			};
+		};
+
+		u1ctsrts_a_1_sleep: u1ctsrts_a_1_sleep {
+			sleep_cfg1 {
+				pins = "GPIO6_AF6"; /* CTS */
+				ste,config = <&slpm_in_wkup_pdis>;
+			};
+			sleep_cfg2 {
+				pins = "GPIO7_AG5"; /* RTS */
+				ste,config = <&slpm_out_hi_wkup_pdis>;
+			};
+		};
 	};
 
 	uart2 {
-- 
2.24.0