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03633c4ef1
Currently the ROCK64 device tree specifies two regulators, vcc_host_5v and vcc_host1_5v for USB VBUS on the device. Both of those are however specified with RK_PA2 as the GPIO enabling them, causing the following error when booting: rockchip-pinctrl pinctrl: pin gpio0-2 already requested by vcc-host-5v-regulator; cannot claim for vcc-host1-5v-regulator rockchip-pinctrl pinctrl: pin-2 (vcc-host1-5v-regulator) status -22 rockchip-pinctrl pinctrl: could not request pin 2 (gpio0-2) from group usb20-host-drv on device rockchip-pinctrl reg-fixed-voltage vcc-host1-5v-regulator: Error applying setting, reverse things back Looking at the schematic, there are in fact three USB regulators, vcc_host_5v, vcc_host1_5v and vcc_otg_v5. But the enable signal for all three is driven by Q2604 which is in turn driven by GPIO_A2/PA2. Since these three regulators are not controllable separately, I removed the second one which was causing the error and added labels for all rails to the single regulator. Signed-off-by: Lorenz Brun <lorenz@brun.one> Tested-by: Diederik de Haas <didi.debian@cknow.org> Link: https://lore.kernel.org/r/20230421213841.3079632-1-lorenz@brun.one Signed-off-by: Heiko Stuebner <heiko@sntech.de> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.