arm: mvebu: define and use common Armada XP SPI pinctrl setting

This patch defines common Armada XP pinctrl settings in armada-xp.dtsi
for the supported SPI interface (MPP36-39) and use it as default
for Armada XP spi interface. That being done, it removes the now
redundant definitions in armada-xp-axpwifiap.dts.

Note: this patch has the potential to break out-of-tree users w/o
specific pinctrl settings for their spi interfaces if the default
above does not match their config (i.e. if they do not use CS0).

Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Link: https://lkml.kernel.org/r/d404b7abd80ee5a0fd8e8d3586d33cd37740d589.1416613429.git.arno@natisbad.org
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/armada-xp.dtsi b/arch/arm/boot/dts/armada-xp.dtsi
index 7cefb9b6d27c..bdb36a05c039 100644
--- a/arch/arm/boot/dts/armada-xp.dtsi
+++ b/arch/arm/boot/dts/armada-xp.dtsi
@@ -43,6 +43,11 @@
                                 wt-override;
                         };
 
+                        spi0: spi@10600 {
+                                pinctrl-0 = <&spi0_pins>;
+                                pinctrl-names = "default";
+                        };
+
                         i2c0: i2c@11000 {
                                 compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
                                 reg = <0x11000 0x100>;
@@ -240,6 +245,12 @@
                 marvell,function = "sd0";
         };
 
+        spi0_pins: spi0-pins {
+                marvell,pins = "mpp36", "mpp37",
+                               "mpp38", "mpp39";
+                marvell,function = "spi";
+        };
+
         uart2_pins: uart2-pins {
                 marvell,pins = "mpp42", "mpp43";
                 marvell,function = "uart2";