On 15 September 2016 at 12:19, Stephen Warren <swar...@wwwdotorg.org> wrote: > From: Stephen Warren <swar...@nvidia.com> > > 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.ziswi...@toradex.com> > Signed-off-by: Stephen Warren <swar...@nvidia.com> > --- > arch/arm/dts/tegra20-colibri.dts | 3 ++- > arch/arm/dts/tegra20-harmony.dts | 3 ++- > drivers/usb/host/ehci-tegra.c | 13 +++++++++++-- > 3 files changed, 15 insertions(+), 4 deletions(-)
Reviewed-by: Simon Glass <s...@chromium.org> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
