[U-Boot] [PATCH 3/5] ARM: dts: dra7xx: am57xx: fix cd-gpios definition as per hardware design and dt binding docs

[Mugunthan V N]

As per mmc device tree binding documentation card detect gpio has
to be active low signal. When a hardware is designed with active
high card detect, gpio polarity has to be changed with
cd-inverted dt property.

In DRA72x and AM57xx EVMs the card detect gpio is designed as
active low gpio. So correcting the dt card detect gpio
definition.

Also adding card-detect gpio for DRA74x EVM.

Signed-off-by: Mugunthan V N <mugunthanvnm at ti.com>
---
 arch/arm/dts/am57xx-beagle-x15.dts | 2 +-
 arch/arm/dts/dra7-evm.dts          | 5 +++++
 arch/arm/dts/dra72-evm.dts         | 2 +-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm/dts/am57xx-beagle-x15.dts b/arch/arm/dts/am57xx-beagle-x15.dts
index e424562..38b266a 100644
--- a/arch/arm/dts/am57xx-beagle-x15.dts
+++ b/arch/arm/dts/am57xx-beagle-x15.dts
@@ -586,7 +586,7 @@
 	vmmc_aux-supply = <&vdd_3v3>;
 	pbias-supply = <&pbias_mmc_reg>;
 	bus-width = <4>;
-	cd-gpios = <&gpio6 27 0>; /* gpio 219 */
+	cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>; /* gpio 219 */
 };
 
 &mmc2 {
diff --git a/arch/arm/dts/dra7-evm.dts b/arch/arm/dts/dra7-evm.dts
index 242fd53..08ef04e 100644
--- a/arch/arm/dts/dra7-evm.dts
+++ b/arch/arm/dts/dra7-evm.dts
@@ -469,6 +469,11 @@
 	status = "okay";
 	vmmc-supply = <&ldo1_reg>;
 	bus-width = <4>;
+	/*
+	 * SDCD signal is not being used here - using the fact that GPIO mode
+	 * is always hardwired.
+	 */
+	cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>;
 };
 
 &mmc2 {
diff --git a/arch/arm/dts/dra72-evm.dts b/arch/arm/dts/dra72-evm.dts
index fc2d167..205103e 100644
--- a/arch/arm/dts/dra72-evm.dts
+++ b/arch/arm/dts/dra72-evm.dts
@@ -503,7 +503,7 @@
 	 * SDCD signal is not being used here - using the fact that GPIO mode
 	 * is a viable alternative
 	 */
-	cd-gpios = <&gpio6 27 0>;
+	cd-gpios = <&gpio6 27 GPIO_ACTIVE_LOW>;
 };
 
 &mmc2 {
-- 
2.8.0.rc3.9.g44915db