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ARM: tegra: colibri_t20: add gpio hogs for gmi_wr_n buffers 

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>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Marcel Ziswiler 2018-09-02 12:08:54 +02:00 committed by Thierry Reding
parent 0b51e73ba1
commit 351c72c832
1 changed files with 16 additions and 0 deletions
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16
arch/arm/boot/dts/tegra20-colibri.dtsi
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@ -757,4 +757,20 @@ lan-reset-n {
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";
};
};