linux-kernel - Re: [Resend: PATCH] PCI: designware: fix the boot noise for missing *config* reg space

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Date:	Wed, 23 Sep 2015 17:00:39 -0400
From:	Murali Karicheri <m-karicheri2@...com>
To:	<jingoohan1@...il.com>, <pratyush.anand@...il.com>,
	<bhelgaas@...gle.com>, <linux-pci@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [Resend: PATCH] PCI: designware: fix the boot noise for missing
 *config* reg space

On 07/30/2015 11:50 AM, Murali Karicheri wrote:
> On 07/21/2015 05:54 PM, Murali Karicheri wrote:
>> Currently on Keystone SoCs, boot up log shows an unnecessary boot
>> noise as follows:-
>>
>> [    0.365823] keystone-pcie 21021000.pcie: missing *config* reg space
>>
>> Keystone uses older version of designware h/w that doesn't have ATU
>> support. So va_cfg0_base and va_cfg1_base are already set up in
>> ks_dw_pcie_host_init() before calling dw_pcie_host_init() and
>> they point to the remote config space address va (both same for
>> Keystone).
>> So add a check to avoid this boot noise on Keystone.
>>
>> Signed-off-by: Murali Karicheri <m-karicheri2@...com>
>> ---
>>   - Resend with "PCI: designware" prefix in subject
>>   drivers/pci/host/pcie-designware.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/pci/host/pcie-designware.c
>> b/drivers/pci/host/pcie-designware.c
>> index 69486be..b48b8a2 100644
>> --- a/drivers/pci/host/pcie-designware.c
>> +++ b/drivers/pci/host/pcie-designware.c
>> @@ -388,7 +388,7 @@ int dw_pcie_host_init(struct pcie_port *pp)
>>           addrp = of_get_address(np, index, NULL, NULL);
>>           pp->cfg0_mod_base = of_read_number(addrp, ns);
>>           pp->cfg1_mod_base = pp->cfg0_mod_base + pp->cfg0_size;
>> -    } else {
>> +    } else if (!pp->va_cfg0_base) {
>>           dev_err(pp->dev, "missing *config* reg space\n");
>>       }
>>
>>
> A gentle ping to review and apply this to pci next.
>
Bjorn,

Not sure why this is not picked for merge. Can you pick this up please!

-- 
Murali Karicheri
Linux Kernel, Keystone
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