Messages in this thread | | | Date | Tue, 27 Aug 2019 15:34:43 +0200 | From | Maxime Ripard <> | Subject | Re: [PATCH] arm64: dts: allwinner: a64: pine64-plus: Add PHY regulator delay |
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On Sun, Aug 25, 2019 at 03:03:36PM +0200, Jernej Skrabec wrote: > Depending on kernel and bootloader configuration, it's possible that > Realtek ethernet PHY isn't powered on properly. It needs some time > before it can be used. > > Fix that by adding 100ms ramp delay to regulator responsible for > powering PHY. > > Fixes: 94dcfdc77fc5 ("arm64: allwinner: pine64-plus: Enable dwmac-sun8i") > Suggested-by: Ondrej Jirman <megous@megous.com> > Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
How was that delay found?
It should at least have a comment explaining why it's there.
Thanks! Maxime
-- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com [unhandled content-type:application/pgp-signature] | |