linux-kernel - Re: [PATCH] mmc:host:sdhci-pci: Addition of Arasan PCI controller with integrated phy.

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Date:   Wed, 27 Sep 2017 22:10:40 -0500
From:   Nishanth Menon <nm@...com>
To:     Atul Garg <agarg@...san.com>, Shawn Lin <shawn.lin@...k-chips.com>
CC:     <rk@...com>, <adrian.hunter@...el.com>, <kishon@...com>,
        <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        <ulf.hansson@...aro.org>, <nsekhar@...com>
Subject: Re: [PATCH] mmc:host:sdhci-pci: Addition of Arasan PCI controller
 with integrated phy.

On 09/27/2017 02:27 PM, Atul Garg wrote:
> On Sep 26, 2017 8:55 PM, "Shawn Lin" <shawn.lin@...k-chips.com 
> <mailto:shawn.lin@...k-chips.com>> wrote:
>     On 2017/9/27 2:59, Atul Garg wrote:

[...]

>         ---
>            drivers/mmc/host/sdhci-pci-core.c | 372
>         ++++++++++++++++++++++++++++++++++++++
> 
> 
>     Fundamentally maybe you need a sdhci-pci-arasan.c
> 
>     And the arasan PHY isn't new here as sdhci-of-arasan already added
>     arasan PHY support for eMMC 5.1, but just with different register
>     layout and content. So could you also use generic PHY framework?
> 
> 
> Thanks. We are doing two things adding support for Arasan PCI SDHC and 
> PHY specific code to it integrated via a window in same PCI address 
> space (extended).
> 
> If we correctly understand, you are suggesting to take the PHY code 
> out as a PHY driver module similar to phy/rockchip/ and use those 
> functions from phy framework within the sdhci-pci-core?

yes, it might allow some reuse possibly as well.


-- 
Regards,
Nishanth Menon

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