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https://github.com/brain-hackers/u-boot-brain
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![]() 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> |
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.. | ||
common | ||
dwc3 | ||
emul | ||
eth | ||
gadget | ||
host | ||
musb | ||
musb-new | ||
phy | ||
ulpi | ||
Kconfig |