[PATCH v3 0/4] tty/serial: meson_uart: add support for core clock handling

Kevin Hilman khilman at baylibre.com
Mon Apr 3 08:44:16 PDT 2017

Helmut Klein <hgkr.klein at gmail.com> writes:

> To be able to use the three none AO uarts of the meson gx SoCs (uart_A,


> uart_B & uart_C), the core clock has to be enabled (see chapter 22.3 of
> the public s905 data sheet).
> At least the u-boot of my s905 based media player (netxeon minimx-g)
> doesn't do this. so the driver must enable the clock.

FYI: even if a booloader enablesq clocks, it's important that the kernel
enable clocks that it uses so the kernel can be independent of any

> This patch set does:
> - exposes the UART clock ids to the dtb
> - adds documentation for the dt-bindings of meson_uart
> - adds the core clock handling to the driver
> - adds the core clock handling to meson-gxbb.dtsi and meson-gxl.dtsi
> The patchset is based on the branch "master" of the repository in [1]

The master branch in my tree just tracks mainline master branch.

To avoid conflicts with other on-going DT changes, the DT patches should
probably be based on top of my v4.12/dt64 branch.


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