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Message-ID: <TYXPR01MB1775B75CED683E38B9171EA8C0990@TYXPR01MB1775.jpnprd01.prod.outlook.com> Date: Wed, 23 Jan 2019 12:18:45 +0000 From: Fabrizio Castro <fabrizio.castro@...renesas.com> To: Geert Uytterhoeven <geert@...ux-m68k.org> CC: Simon Horman <horms@...ge.net.au>, Wolfgang Grandegger <wg@...ndegger.com>, Marc Kleine-Budde <mkl@...gutronix.de>, Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, "David S. Miller" <davem@...emloft.net>, Magnus Damm <magnus.damm@...il.com>, Geert Uytterhoeven <geert+renesas@...der.be>, Chris Paterson <Chris.Paterson2@...esas.com>, Biju Das <biju.das@...renesas.com>, "linux-can@...r.kernel.org" <linux-can@...r.kernel.org>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, "linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>, "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org> Subject: RE: [PATCH 2/3] arm64: dts: renesas: r8a774a1: Add clkp2 clock to CAN nodes Hello Geert, Thank you for your feedback! > From: Geert Uytterhoeven <geert@...ux-m68k.org> > Sent: 23 January 2019 12:08 > Subject: Re: [PATCH 2/3] arm64: dts: renesas: r8a774a1: Add clkp2 clock to CAN nodes > > Hi Fabrizio, > > On Wed, Jan 23, 2019 at 1:01 PM Fabrizio Castro > <fabrizio.castro@...renesas.com> wrote: > > > From: Simon Horman <horms@...ge.net.au> > > > Sent: 23 January 2019 11:38 > > > Subject: Re: [PATCH 2/3] arm64: dts: renesas: r8a774a1: Add clkp2 clock to CAN nodes > > > > > > On Wed, Jan 23, 2019 at 10:51:23AM +0100, Simon Horman wrote: > > > > On Fri, Jan 18, 2019 at 01:13:53PM +0100, Simon Horman wrote: > > > > > On Thu, Jan 17, 2019 at 02:54:15PM +0000, Fabrizio Castro wrote: > > > > > > According to the latest information, clkp2 is available on RZ/G2. > > > > > > Modify CAN0 and CAN1 nodes accordingly. > > > > > > > > > > > > Signed-off-by: Fabrizio Castro <fabrizio.castro@...renesas.com> > > > > > > Reviewed-by: Chris Paterson <Chris.Paterson2@...esas.com> > > > > > Thanks again, applied for v5.1. > > > > > > Sorry, I was a little hasty there. > > > > > > This patch depends on the presence of R8A774A1_CLK_CANFD which > > > (rightly) is added in a different patch in this series which is to > > > go upstream via a different tree. > > > > > > I have dropped this patch for now. I think there are two solution to this > > > problem. > > > > > > 1. Provide a version of this patch which uses a numeric index instead of > > > R8A774A1_CLK_CANFD. And then, once R8A774A1_CLK_CANFD is present in an > > > RC release provide a patch to switch to using R8A774A1_CLK_CANFD. > > > > > > 2. Defer this patch until R8A774A1_CLK_CANFD is present in an RC release. > > > > Yeah, my personal preference is solution 2. > > Note that solution 2 will probably defer the DT patch to v5.2. Yeah, my understanding is that even if we chose solution 1 we would still need to be waiting for v5.2 for the patch to switch to using R8A774A1_CLK_CANFD to appear in a rc, therefore I think solution 2 is fine. Thanks, Fab > > Gr{oetje,eeting}s, > > Geert > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-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 Renesas Electronics Europe Ltd, Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, UK. Registered in England & Wales under Registered No. 04586709.
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