Thread (6 messages) 6 messages, 2 authors, 2021-05-17

Re: [PATCH 2/3] arm64: dts: renesas: beacon: Fix USB ref clock references

From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: 2021-05-17 10:07:59
Also in: linux-devicetree, linux-renesas-soc, lkml

Hi Adam,

Thanks for your patch!

On Thu, May 13, 2021 at 1:46 PM Adam Ford [off-list ref] wrote:
The RZ/G2 boards expect there to be a external clock reference for
an
USB2 EHCI controllers.  For the Beacon boards, this reference clock
is controlled by a programmable verasaclock.  Because the RZ/G2
versaclock
family have a special clock driver when using an external clock,
has
the third clock reference in the EHCI node needs to point to this
special clock, called usb2_clksel.

Since the usb2_clksel does not keep the usb_extal clock enabled,
the 4th clock entry for the EHCI nodes needs to reference it to
keep the clock running and make USB functional.

Signed-off-by: Adam Ford <redacted>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v5.14, with the above fixed.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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