linux-kernel - Re: [RESEND PATCH] arm: assabet_defconfig: disable IDE subsystem

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Date:   Thu, 09 Mar 2017 13:21:22 +0100
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:     Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...libre.com>,
        Arnd Bergmann <arnd@...db.de>,
        linux-arm-kernel@...ts.infradead.org,
        Russell King <linux@....linux.org.uk>,
        Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
        linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
        Olof Johansson <olof@...om.net>
Subject: Re: [RESEND PATCH] arm: assabet_defconfig: disable IDE subsystem


Hi,

On Thursday, March 09, 2017 12:25:47 PM Sergei Shtylyov wrote:
> Hello!
> 
> On 3/9/2017 11:39 AM, Sekhar Nori wrote:
> 
> >>> It took a while to get to it but here is the draft driver patch
> >>> against v4.11-rc1.  Please test.
> >>
> >> I tested this on DM6446 EVM. I was able to mount existing partitions on
> >> the hard disk and see that the directory listing looks good[1]. I will do
> >> more tests (including comparing performance with old driver) tomorrow. I
> >
> > I completed the tests I wanted to, including some read/write/data
> > integrity tests. Performance is same as before too.
> >
> > Tested-by: Sekhar Nori <nsekhar@...com>
> >
> > Here are the additional changes I did. These changes do not clash with
> > what I have already queued for v4.12. That said, its probably better if
> > I carry the platform pieces through my tree. Let me know how you want
> > to proceed.
> >
> > Thanks,
> > Sekhar
> >
> > ---8<---
> > diff --git a/arch/arm/configs/davinci_all_defconfig b/arch/arm/configs/davinci_all_defconfig
> > index b9a7cb98ffda..67db82999c06 100644
> > --- a/arch/arm/configs/davinci_all_defconfig
> > +++ b/arch/arm/configs/davinci_all_defconfig
> [...]
> > diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
> > index 023480b75244..60a1f23890cd 100644
> > --- a/arch/arm/mach-davinci/board-dm644x-evm.c
> > +++ b/arch/arm/mach-davinci/board-dm644x-evm.c
> > @@ -744,7 +744,7 @@ static int davinci_phy_fixup(struct phy_device *phydev)
> >  	return 0;
> >  }
> >
> > -#define HAS_ATA		IS_ENABLED(CONFIG_BLK_DEV_PALMCHIP_BK3710)
> > +#define HAS_ATA		IS_ENABLED(CONFIG_PATA_BK3710)
> 
>     I think it would be more correct to check for both libata and IDE drivers 
> here...

Thanks for noticing.

To make both drivers work depending on config options selected I'll:
- fix these HAS_ATA macros
- use "palm_bk3710" as platform driver name in the new driver
- drop IDE platform device & IDE clock name changes

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics