diff mbox series

[v2,25/37] ARM: tegra: colibri_t20: add gpio hogs for gmi_wr_n buffers

Message ID 20180902100906.25792-26-marcel@ziswiler.com
State Accepted
Headers show
Series ARM: dts: tegra: colibri_t20: major revamp incl. eval board support | expand

Commit Message

Marcel Ziswiler Sept. 2, 2018, 10:08 a.m. UTC 
From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

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@toradex.com>

---

Changes in v2: None

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

Patch

diff --git a/arch/arm/boot/dts/tegra20-colibri.dtsi b/arch/arm/boot/dts/tegra20-colibri.dtsi
index 281e0dd11565..aba56b447bcd 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";
+	};
 };