diff options
author | Stephen Warren <swarren@nvidia.com> | 2016-09-15 12:19:37 -0600 |
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committer | Tom Warren <twarren@nvidia.com> | 2016-09-27 09:11:03 -0700 |
commit | 2f6a7e8ce5df8b99d84bfd486c6f99d92322ce04 (patch) | |
tree | eb77203c632945bc09e6991da1f4cbc37c782d9d /arch/arm/dts/sun7i-a20-icnova-swac.dts | |
parent | fc607d9ab96654973bd13dc0de1b2ff6d3d901b4 (diff) |
ARM: tegra: fix USB ULPI PHY reset signal inversion confusion
USB ULPI PHY reset signals are typically active low. Consequently, they
should be marked as GPIO_ACTIVE_LOW in device tree, and indeed they are in
the Linux kernel DTs, and in DT properties that U-Boot doesn't yet use.
However, in DT properties that U-Boot does use, the value has been set to
0 (== GPIO_ACTIVE_HIGH) to work around a bug in U-Boot.
This change fixes the DT to correctly represent the HW, and fixes the
Tegra USB driver to cope with the fact that dm_gpio_set_value() internally
handles any inversions implied by the DT value GPIO_ACTIVE_LOW.
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/dts/sun7i-a20-icnova-swac.dts')
0 files changed, 0 insertions, 0 deletions