Re: [PATCH 3/6] arm64: dts: meson-sm1-odroid-c4: fix hub_5v regulator gpio
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: 2021-06-03 18:09:08
Also in:
linux-amlogic, lkml
Hi Neil, On Tue, Jun 1, 2021 at 11:01 AM Neil Armstrong [off-list ref] wrote:
As described in the Odroid-C4 schematics, the HUB_5V regulator is controlled
by GPIOH_8 and in Open Drain since this GPIO doesn't support Push-Pull.
Fixes: 326e57518b0d ("arm64: dts: meson-sm1: add support for Hardkernel ODROID-C4")
Signed-off-by: Neil Armstrong <redacted>my interpretation of page 32 of the schematics [0] is that GPIOH_8 manages VCC5V GPIOH_4 is connected as RST_N to the RESET# pad of the USB hub -> this seems to match the original regulator definition [0] https://wiki.odroid.com/_media/odroid-c4/odroid-c4_rev1.0.pdf _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel