From: Tony Lindgren <tony@atomide.com>
To: Sekhar Nori <nsekhar@ti.com>
Cc: Suman Anna <s-anna@ti.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
Bjorn Helgaas <bhelgaas@google.com>,
richardcochran@gmail.com, Russell King <linux@arm.linux.org.uk>,
linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 2/3] ARM: DRA7: add pdata-quirks to do reset of PCIe
Date: Wed, 27 Jan 2016 09:23:24 -0800 [thread overview]
Message-ID: <20160127172323.GP19432@atomide.com> (raw)
In-Reply-To: <569CAC97.3030703@ti.com>
* Sekhar Nori <nsekhar@ti.com> [160118 01:13]:
> On Saturday 16 January 2016 01:11 AM, Suman Anna wrote:
> > On 01/15/2016 01:22 PM, Tony Lindgren wrote:
> >> I doubt this platform_data is dra7 specific. I believe it's
> >> the same PCI controller that has been in the omap variants for
> >> years?
> >
> > AFAIK, this only applies to DRA7. Sekhar/Kishon can confirm. I did take
> > a quick look at OMAP3/4/5 TRMs, and didn't find any. Neither did a grep
> > on current hwmod files other than DRA7. There's a DM81xx related PCI
> > clock domain, but don't see any corresponding driver/device for the same.
>
> Like Suman, I do not know of any TI SoC that came off the OMAP mobile
> business that has PCIe.
>
> DM81xx has a PCIe (but no mainline driver). Both DM81xx and DRA7x use a
> designware core. But, the glue layer (which is the subject of interest
> here), is completely different. I looked at the DM81xx driver in TI
> kernel[1] to confirm this.
OK thanks for checking.
> I remember talking to Kishon about similarities between the DM81xx and
> DRA7x PCIe subsystem and remember that he too mentioned that they are
> quite different.
OK
> For an IP like PCIeSS, its quite difficult to come-up with unique names
> without using the name of the platform they first appeared in. Anyway,
> the driver is already called "pci-dra7xx", so I guess there is no harm
> in having that name in platform data as well. That in itself should not
> preclude its use on other platforms later (although I agree having a
> generic name would be ideal).
Yeah seems OK to me. I still have some PM runtime related questions
though.. Will reply to the related patch chunk though.
Regards,
Tony
next prev parent reply other threads:[~2016-01-27 17:23 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-14 14:11 [PATCH v3 0/3] dra7xx: get pcie working in mainline Kishon Vijay Abraham I
2016-01-14 14:11 ` [PATCH v3 1/3] ARM: DRA7: hwmod: Add reset data for PCIe Kishon Vijay Abraham I
2016-02-08 1:50 ` Paul Walmsley
2016-01-14 14:11 ` [PATCH v3 2/3] ARM: DRA7: add pdata-quirks to do reset of PCIe Kishon Vijay Abraham I
2016-01-15 19:19 ` Suman Anna
2016-01-15 19:22 ` Tony Lindgren
2016-01-15 19:41 ` Suman Anna
2016-01-18 9:12 ` Sekhar Nori
2016-01-27 17:23 ` Tony Lindgren [this message]
2016-01-14 14:11 ` [PATCH v3 3/3] pci: dra7xx: use pdata callbacks to perform reset Kishon Vijay Abraham I
2016-01-27 17:31 ` Tony Lindgren
2016-01-27 18:16 ` Suman Anna
2016-01-27 18:56 ` Tony Lindgren
2016-01-27 23:16 ` Suman Anna
2016-01-28 18:31 ` Tony Lindgren
2016-01-28 21:15 ` Suman Anna
2016-02-02 10:40 ` Kishon Vijay Abraham I
2016-02-05 4:19 ` Kishon Vijay Abraham I
2016-02-08 2:48 ` Paul Walmsley
2016-02-08 20:56 ` Suman Anna
2016-02-09 8:49 ` Paul Walmsley
2016-02-09 17:40 ` Suman Anna
2016-02-09 19:36 ` Paul Walmsley
2016-02-10 1:42 ` Suman Anna
2016-02-10 5:38 ` Kishon Vijay Abraham I
2016-02-11 19:27 ` Paul Walmsley
2016-02-11 22:04 ` Suman Anna
2016-02-12 6:49 ` Kishon Vijay Abraham I
2016-02-12 17:20 ` Suman Anna
2016-02-18 14:21 ` Sekhar Nori
2016-02-18 17:23 ` Paul Walmsley
2016-02-18 18:27 ` Suman Anna
2016-02-22 6:18 ` Kishon Vijay Abraham I
2016-02-22 6:31 ` Paul Walmsley
2016-02-22 9:55 ` Kishon Vijay Abraham I
2016-02-23 11:57 ` Kishon Vijay Abraham I
2016-02-23 18:28 ` Paul Walmsley
2016-02-24 6:21 ` Kishon Vijay Abraham I
2016-03-01 8:25 ` Paul Walmsley
2016-03-01 11:55 ` Kishon Vijay Abraham I
2016-03-01 14:43 ` Bjorn Helgaas
2016-03-01 16:55 ` Suman Anna
2016-02-11 20:43 ` Suman Anna
2016-02-12 6:55 ` Kishon Vijay Abraham I
2016-02-10 5:36 ` Kishon Vijay Abraham I
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