When McASP is not in use the pins can be put to sleep mode to conserve
power.

Signed-off-by: Peter Ujfalusi <[email protected]>
---
 arch/arm/boot/dts/am335x-evmsk.dts | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/am335x-evmsk.dts 
b/arch/arm/boot/dts/am335x-evmsk.dts
index 2f62d915b438..8abfe2a2ff4a 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -396,6 +396,15 @@
                >;
        };
 
+       mcasp1_pins_sleep: mcasp1_pins_sleep {
+               pinctrl-single,pins = <
+                       0x10c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                       0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                       0x108 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+                       0x144 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+               >;
+       };
+
        mmc2_pins: pinmux_mmc2_pins {
                pinctrl-single,pins = <
                        0x74 (PIN_INPUT_PULLUP | MUX_MODE7) /* 
gpmc_wpn.gpio0_31 */
@@ -661,8 +670,9 @@
 };
 
 &mcasp1 {
-       pinctrl-names = "default";
+       pinctrl-names = "default", "sleep";
        pinctrl-0 = <&mcasp1_pins>;
+       pinctrl-1 = <&mcasp1_pins_sleep>;
 
        status = "okay";
 
-- 
2.4.5

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