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Re: [PATCH v4 10/13] arm64: allwinner: a64: Increase the MMC max frequency

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On Fri, Jan 27, 2017 at 11:29:53AM +0100, Florian Vaussard wrote:
> Hi Maxime,
> 
> On 01/26/2017 10:06 AM, Maxime Ripard wrote:
> > The eMMC controller seem to have a maximum frequency of 200MHz, while the
> > regular MMC controllers are capped at 150MHz.
> > 
> > Since older SoCs cannot go that high, we cannot change the default maximum
> > frequency, but fortunately for us we have a property for that in the DT.
> > 
> > This also has the side effect of allowing to use the MMC HS200 and SD
> > SDR104 modes for the boards that support it (with either 1.2v or 1.8v IOs).
> > 
> > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> > 
> > arm64: allwinner: a64: Limit MMC0 and MMC1 rates to 150MHz
> > 
> > Trying to set the bus to 200MHz on MMC1 when doing SDIO is failing.
> > Allwinner sets the maximum for this bus to 150MHz, so enforce that limit.
> > 
> > This hasn't been tested with MMC0, but the documented limit is the same,
> > and I expect the behaviour to be the same.
> > 
> > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> 
> I suspect that you are trying to increase your number of Signed-off-by tags by
> using unfair means :) Otherwise the squashed commit message is probably worth
> some cleaning.

/me hides in a corner...

The first commit log is the right one, I'll remove the second.

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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[PATCH v4 0/13] arm64: allwinner: a64: Enable MMC support Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-26 10:10 +0100
  [PATCH v4 2/13] mmc: sunxi: Gate the clock when rate is 0 Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-26 10:10 +0100
  [PATCH v4 3/13] mmc: sunxi: Always set signal delay to 0 for A64 Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-26 10:10 +0100
  [PATCH v4 12/13] arm64: allwinner: a64: add UART1 pin nodes Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-26 10:20 +0100
  [PATCH v4 10/13] arm64: allwinner: a64: Increase the MMC max frequency Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-26 10:20 +0100
    Re: [PATCH v4 10/13] arm64: allwinner: a64: Increase the MMC max  frequency Florian Vaussard <florian.vaussard@heig-vd.ch> - 2017-01-27 11:50 +0100
      Re: [PATCH v4 10/13] arm64: allwinner: a64: Increase the MMC max  frequency Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-27 22:40 +0100
  [PATCH v4 1/13] mmc: sunxi: Fix clock frequency change sequence Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-26 10:20 +0100
  [PATCH v4 11/13] arm64: allwinner: pine64: add MMC support Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-26 10:20 +0100
  Re: [PATCH v4 0/13] arm64: allwinner: a64: Enable MMC support Florian Vaussard <florian.vaussard@heig-vd.ch> - 2017-01-27 11:50 +0100
    Re: [PATCH v4 0/13] arm64: allwinner: a64: Enable MMC support Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-27 22:40 +0100

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