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Date: Fri, 13 Apr 2018 12:26:16 -0500 From: Rob Herring <robh@...nel.org> To: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com> Cc: David Miller <davem@...emloft.net>, netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>, Florian Fainelli <f.fainelli@...il.com>, Mark Rutland <mark.rutland@....com>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, Masahiro Yamada <yamada.masahiro@...ionext.com>, Masami Hiramatsu <masami.hiramatsu@...aro.org>, Jassi Brar <jaswinder.singh@...aro.org> Subject: Re: [PATCH net-next 1/3] net: ethernet: ave: add multiple clocks and resets support as required property On Mon, Apr 09, 2018 at 03:38:43PM +0900, Kunihiko Hayashi wrote: > When the link is becoming up for Pro4 SoC, the kernel is stalled > due to some missing clocks and resets. > > The AVE block for Pro4 is connected to the GIO bus in the SoC. > Without its clock/reset, the access to the AVE register makes the > system stall. > > In the same way, another MAC clock for Giga-bit Connection and > the PHY clock are also required for Pro4 to activate the Giga-bit feature > and to recognize the PHY. > > To satisfy these requirements, this patch adds support for multiple clocks > and resets, and adds the clock-names and reset-names to the binding because > we need to distinguish clock/reset for the AVE main block and the others. > > Also, make the resets a required property. Currently, "reset is > optional" relies on that the bootloader or firmware has deasserted > the reset before booting the kernel. Drivers should work without > such expectation. > > Fixes: 4c270b55a5af ("net: ethernet: socionext: add AVE ethernet driver") > Suggested-by: Masahiro Yamada <yamada.masahiro@...ionext.com> > Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com> > --- > .../bindings/net/socionext,uniphier-ave4.txt | 13 ++- Reviewed-by: Rob Herring <robh@...nel.org> > drivers/net/ethernet/socionext/sni_ave.c | 108 ++++++++++++++++----- > 2 files changed, 96 insertions(+), 25 deletions(-)
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