ARM: dts: imx51-zii-scu3-esb: Add switch IRQ line pinumx config

Instead of relying on default values, configure PAD_AUD3_BB_CK to be a
GPIO explicitly. While at, it change the pad configuration to enable
a 100K pull-down (the pin is used as IRQ_TYPE_LEVEL_HIGH).

Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: cphealy@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx51-zii-scu3-esb.dts b/arch/arm/boot/dts/imx51-zii-scu3-esb.dts
index 07bc5fc05076..a7ede537e12a 100644
--- a/arch/arm/boot/dts/imx51-zii-scu3-esb.dts
+++ b/arch/arm/boot/dts/imx51-zii-scu3-esb.dts
@@ -221,6 +221,8 @@
                         interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
                         interrupt-controller;
                         #interrupt-cells = <2>;
+                        pinctrl-names = "default";
+                        pinctrl-0 = <&pinctrl_switch>;
 
                         ports {
                                 #address-cells = <1>;
@@ -426,6 +428,12 @@
                 >;
         };
 
+        pinctrl_switch: switchgrp {
+                fsl,pins = <
+                        MX51_PAD_AUD3_BB_CK__GPIO4_20           0xc5
+                >;
+        };
+
         pinctrl_uart1: uart1grp {
                 fsl,pins = <
                         MX51_PAD_UART1_RXD__UART1_RXD           0x1c5