[PATCH 25/31] ARM: tegra: colibri_t20: add gpio hogs for gmi_wr_n buffers

[Marcel Ziswiler <marcel@xxxxxxxxxxxx>]

From: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>

Add GPIO hogs for GMI_WR_N buffers:
- tri-stating GMI_WR_N on SODIMM pin 99 nPWE
- not tri-stating GMI_WR_N on SODIMM pin 93 RDnWR

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>

---

 arch/arm/boot/dts/tegra20-colibri.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/tegra20-colibri.dtsi b/arch/arm/boot/dts/tegra20-colibri.dtsi
index 339316dd57e9..35eec7ade70d 100644
--- a/arch/arm/boot/dts/tegra20-colibri.dtsi
+++ b/arch/arm/boot/dts/tegra20-colibri.dtsi
@@ -757,4 +757,20 @@
 		output-high;
 		line-name = "LAN_RESET#";
 	};
+
+	/* Tri-stating GMI_WR_N on SODIMM pin 99 nPWE */
+	npwe {
+		gpio-hog;
+		gpios = <TEGRA_GPIO(T, 5) GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "Tri-state nPWE";
+	};
+
+	/* Not tri-stating GMI_WR_N on SODIMM pin 93 RDnWR */
+	rdnwr {
+		gpio-hog;
+		gpios = <TEGRA_GPIO(T, 6) GPIO_ACTIVE_HIGH>;
+		output-low;
+		line-name = "Not tri-state RDnWR";
+	};
 };
-- 
2.14.4