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

Marcel Ziswiler
2018-09-02T10:10:17Z

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 --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";
+ };
};
--
2.14.4