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From: Kishon Vijay Abraham I <kishon@ti.com>
To: Tony Lindgren <tony@atomide.com>, Suman Anna <s-anna@ti.com>
Cc: Richard Cochran <richardcochran@gmail.com>,
	Tero Kristo <t-kristo@ti.com>, "Murphy, Dan" <dmurphy@ti.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: dra7xx pci driver broken on dra7xx-evm
Date: Fri, 8 Jan 2016 11:37:09 +0530	[thread overview]
Message-ID: <568F520D.9050807@ti.com> (raw)
In-Reply-To: <20160107215946.GP12777@atomide.com>

Hi,

On Friday 08 January 2016 03:29 AM, Tony Lindgren wrote:
> * Suman Anna <s-anna@ti.com> [160107 13:26]:
>> On 01/06/2016 11:17 PM, Kishon Vijay Abraham I wrote:
>>> Hi,
>>
>> + Tero, Tony and linux-omap
>>
>>>
>>> On Thursday 07 January 2016 03:15 AM, Richard Cochran wrote:
>>>>
>>>> The dra7xx-evm box freezes hard at the very first PCI bus access, the
>>>> call to in dra7xx_pcie_readl() in dra7xx_pcie_probe().
>>>>
>>>> The out-of-tree 3.14.53 TI driver performs a reset via platform data,
>>>> calling omap_device_assert_hardreset() by hook and crook.
>>
>> Yeah, this is the only feasible way and not break multi-arch atm until a
>> reset framework is in place. We have couple of drivers (omap_iommu and
>> wkup_m3_rproc) following this approach.
> 
> Sounds like doing reset with platform data is the way to go until the
> reset controller works.

All right. I'll post the patch to do reset using platform data.

Thanks
Kishon

WARNING: multiple messages have this Message-ID (diff)
From: kishon@ti.com (Kishon Vijay Abraham I)
To: linux-arm-kernel@lists.infradead.org
Subject: dra7xx pci driver broken on dra7xx-evm
Date: Fri, 8 Jan 2016 11:37:09 +0530	[thread overview]
Message-ID: <568F520D.9050807@ti.com> (raw)
In-Reply-To: <20160107215946.GP12777@atomide.com>

Hi,

On Friday 08 January 2016 03:29 AM, Tony Lindgren wrote:
> * Suman Anna <s-anna@ti.com> [160107 13:26]:
>> On 01/06/2016 11:17 PM, Kishon Vijay Abraham I wrote:
>>> Hi,
>>
>> + Tero, Tony and linux-omap
>>
>>>
>>> On Thursday 07 January 2016 03:15 AM, Richard Cochran wrote:
>>>>
>>>> The dra7xx-evm box freezes hard at the very first PCI bus access, the
>>>> call to in dra7xx_pcie_readl() in dra7xx_pcie_probe().
>>>>
>>>> The out-of-tree 3.14.53 TI driver performs a reset via platform data,
>>>> calling omap_device_assert_hardreset() by hook and crook.
>>
>> Yeah, this is the only feasible way and not break multi-arch atm until a
>> reset framework is in place. We have couple of drivers (omap_iommu and
>> wkup_m3_rproc) following this approach.
> 
> Sounds like doing reset with platform data is the way to go until the
> reset controller works.

All right. I'll post the patch to do reset using platform data.

Thanks
Kishon

  reply	other threads:[~2016-01-08  6:07 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-06 21:45 dra7xx pci driver broken on dra7xx-evm Richard Cochran
2016-01-07  5:17 ` Kishon Vijay Abraham I
2016-01-07  7:37   ` Richard Cochran
2016-01-07  8:11   ` [PATCH] arm: pci: mark the dra7xx driver as broken Richard Cochran
2016-01-07  8:44     ` Kishon Vijay Abraham I
2016-01-07  9:25       ` Richard Cochran
2016-01-07 14:42         ` Bjorn Helgaas
2016-01-08  6:55           ` Kishon Vijay Abraham I
2016-01-07 21:26   ` dra7xx pci driver broken on dra7xx-evm Suman Anna
2016-01-07 21:26     ` Suman Anna
2016-01-07 21:59     ` Tony Lindgren
2016-01-07 21:59       ` Tony Lindgren
2016-01-08  6:07       ` Kishon Vijay Abraham I [this message]
2016-01-08  6:07         ` Kishon Vijay Abraham I
2016-01-08  9:22         ` Richard Cochran
2016-01-08  9:22           ` Richard Cochran
2016-01-11  8:58           ` Kishon Vijay Abraham I
2016-01-11  8:58             ` Kishon Vijay Abraham I

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