linux-kernel - Re: [PATCH v2 0/9] Add tune support of Mediatek MMC driver

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Date:	Thu, 22 Oct 2015 10:18:49 +0800
From:	Chaotian Jing <chaotian.jing@...iatek.com>
To:	Ulf Hansson <ulf.hansson@...aro.org>
CC:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	"Mark Rutland" <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	"Barry Song" <baohua@...nel.org>,
	Hans de Goede <hdegoede@...hat.com>,
	"Lars-Peter Clausen" <lars@...afoo.de>,
	Javier Martinez Canillas <javier.martinez@...labora.co.uk>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Howard Chen <ibanezchen@...il.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kristina Martsenko <kristina.martsenko@...il.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Minda Chen <Minda.Chen@....com>,
	Dong Aisheng <b29396@...escale.com>,
	"Johan Derycke" <johan.derycke@...co.com>,
	Haibo Chen <haibo.chen@...escale.com>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	Georgi Djakov <georgi.djakov@...aro.org>,
	Ivan Ivanov <ivan.ivanov@...aro.org>,
	"Weijun Yang" <Weijun.Yang@....com>,
	Kevin Hao <haokexin@...il.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	srv_heupstream <srv_heupstream@...iatek.com>
Subject: Re: [PATCH v2 0/9] Add tune support of Mediatek MMC driver

On Tue, 2015-10-20 at 18:41 +0200, Ulf Hansson wrote:
> On 20 October 2015 at 11:13, Chaotian Jing <chaotian.jing@...iatek.com> wrote:
> > Change in v2:
> > Drop the 400mhz and use assigned-clock-parents to instead
> > Split the original tune patch to several independent patches
> > Re-write the mmc_send_tuning()
> > Fix GPD checksum error
> > Move the HS400 setting to ops->prepare_hs400_tuning()
> > Modify SD driving settings
> >
> > Change in v1:
> > Add DT bindings for eMMC hardware reset
> > Add pinctrl of data strobe pin for HS400 mode
> > Modify eMMC driving settings
> > Add 400mhz source clock for HS400 mode
> > Add eMMC HS200/HS400 mode support
> > Add SD SDR50/SDR104 mode support
> > Add implement of tune function with CMD19/CMD21
> >
> > Chaotian Jing (9):
> >   mmc: core: Add DT bindings for eMMC hardware reset support
> >   mmc: dt-bindings: update Mediatek MMC bindings
> >   mmc: mediatek: make cmd_ints_mask to const
> >   mmc: mediatek: change the argument "ddr" to "timing"
> >   mmc: mediatek: fix got GPD checksum error interrupt when data transfer
> >   mmc: mediatek: add implement of ops->hw_reset()
> >   mmc: mmc: extend the mmc_send_tuning()
> >   mmc: mediatek: add HS400 support
> >   arm64: dts: mediatek: add HS200/HS400/SDR50/SDR104 support
> >
> >  Documentation/devicetree/bindings/mmc/mmc.txt    |   1 +
> >  Documentation/devicetree/bindings/mmc/mtk-sd.txt |  11 +-
> >  arch/arm64/boot/dts/mediatek/mt8173-evb.dts      |  27 ++-
> >  drivers/mmc/core/host.c                          |   2 +
> >  drivers/mmc/core/mmc_ops.c                       |   8 +-
> >  drivers/mmc/host/dw_mmc-exynos.c                 |   4 +-
> >  drivers/mmc/host/dw_mmc.c                        |   2 +-
> >  drivers/mmc/host/dw_mmc.h                        |   2 +-
> >  drivers/mmc/host/mtk-sd.c                        | 296 ++++++++++++++++++++---
> >  drivers/mmc/host/sdhci-esdhc-imx.c               |   6 +-
> >  drivers/mmc/host/sdhci-msm.c                     |   2 +-
> >  drivers/mmc/host/sdhci-sirf.c                    |   2 +-
> >  include/linux/mmc/core.h                         |   2 +-
> >  13 files changed, 314 insertions(+), 51 deletions(-)
> >
> > --
> > 1.8.1.1.dirty
> 
> I have reviewed the patches, I think they overall looks good! Some
> comments though.
> 
> You need to split patch 9, the DT parts enabling hw reset shall go in
> separately.
> 
Ok, will separate it at next revision.

> Regarding the hw-reset changes in patch1, patch6 and patch9, I believe
> I requested you to separate the HW reset changes from $subject
> patchset as they are unrelated, please do this.
> 
As you know, the hw-reset is a part of mmc retune.
so that I add it to this series.

> Running checkpatch, it gave me warnings and errors for patch 8.
> Patch7 didn't apply to my next branch.
> 

I will fix the checkpatch warnings and errors at next revision.
by the way, I tried to use "git am
0007-mmc-mmc-extend-the-mmc_send_tuning.patch" in your branch,
there was no conflict, so why couldn't apply it ?
Thx!

> Kind regards
> Uffe


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