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From: Adrian Hunter <adrian.hunter@intel.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
	Shawn Lin <shawn.lin@rock-chips.com>
Cc: "Jaehoon Chung" <jh80.chung@samsung.com>,
	"Michal Simek" <michal.simek@xilinx.com>,
	"Sören Brinkmann" <soren.brinkmann@xilinx.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	linux-mmc <linux-mmc@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Doug Anderson" <dianders@chromium.org>,
	"Heiko Stuebner" <heiko@sntech.de>,
	"open list:ARM/Rockchip SoC..."
	<linux-rockchip@lists.infradead.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Subject: Re: [PATCH v2 3/6] mmc: core: implement enhanced strobe support
Date: Wed, 4 May 2016 15:07:01 +0300	[thread overview]
Message-ID: <5729E5E5.6000409@intel.com> (raw)
In-Reply-To: <CAPDyKFogNjwNs+fKPaah_X=AfSgtXUwefzon+ZQ2a2Va5Om5Nw@mail.gmail.com>

>> diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
>> index 4bc48f1..7e94b9d 100644
>> --- a/drivers/mmc/core/bus.c
>> +++ b/drivers/mmc/core/bus.c
>> @@ -332,12 +332,13 @@ int mmc_add_card(struct mmc_card *card)
>>                         mmc_card_ddr52(card) ? "DDR " : "",
>>                         type);
>>         } else {
>> -               pr_info("%s: new %s%s%s%s%s card at address %04x\n",
>> +               pr_info("%s: new %s%s%s%s%s%s card at address %04x\n",
>>                         mmc_hostname(card->host),
>>                         mmc_card_uhs(card) ? "ultra high speed " :
>>                         (mmc_card_hs(card) ? "high speed " : ""),
>>                         mmc_card_hs400(card) ? "HS400 " :
>>                         (mmc_card_hs200(card) ? "HS200 " : ""),
>> +                       mmc_card_hs400es(card) ? "Enhanced strobe" : "",
> 
> I am not sure this informations should be printed. It's still and
> HS400 card, there is no performance impact, right?

I actually asked for that I think.  HS400ES does not need re-tuning so there
is a performance and behavioural change which I think it is very useful to
know.  Kernels which don't support HS400ES will show "HS400" whereas kernels
which do support it will show something different.

  reply	other threads:[~2016-05-04 13:14 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-29  2:42 [PATCH v2 0/6] Add enhanced strobe support for emmc version 5.1 or later Shawn Lin
2016-04-29  2:46 ` [PATCH v2 1/6] Documentation: mmc: add mmc-hs400-enhanced-strobe Shawn Lin
2016-05-03 17:05   ` Rob Herring
2016-04-29  2:46 ` [PATCH v2 2/6] mmc: core: add mmc-hs400-enhanced-strobe support Shawn Lin
2016-05-04  8:12   ` Ulf Hansson
2016-05-04  9:19     ` Shawn Lin
2016-04-29  2:47 ` [PATCH v2 3/6] mmc: core: implement enhanced strobe support Shawn Lin
2016-05-04 12:02   ` Ulf Hansson
2016-05-04 12:07     ` Adrian Hunter [this message]
2016-05-05  2:16     ` Shawn Lin
2016-05-09 11:56   ` Adrian Hunter
2016-05-10  8:29     ` Shawn Lin
2016-04-29  2:48 ` [PATCH v2 4/6] mmc: debugfs: add HS400 enhanced strobe description Shawn Lin
2016-05-09 12:00   ` Adrian Hunter
2016-04-29  2:48 ` [PATCH v2 5/6] mmc: sdhci: implement enhanced strobe callback Shawn Lin
2016-05-09 12:02   ` Adrian Hunter
2016-04-29  2:48 ` [PATCH v2 6/6] mmc: sdhci-of-arasan: overwrite " Shawn Lin
2016-04-29 16:01   ` Sören Brinkmann

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