linux-kernel - Re: [PATCH v6 3/4] pci: iproc: Add Broadcom iProc PCIe support

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Date:	Thu, 12 Mar 2015 17:17:36 -0700
From:	Ray Jui <rjui@...adcom.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	Arnd Bergmann <arnd@...db.de>, Hauke Mehrtens <hauke@...ke-m.de>,
	"Paul Bolle" <pebolle@...cali.nl>,
	Florian Fainelli <f.fainelli@...il.com>,
	Dmitry Torokhov <dtor@...gle.com>,
	Anatol Pomazau <anatol@...gle.com>,
	Scott Branden <sbranden@...adcom.com>,
	<linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<bcm-kernel-feedback-list@...adcom.com>,
	<devicetree@...r.kernel.org>
Subject: Re: [PATCH v6 3/4] pci: iproc: Add Broadcom iProc PCIe support



On 3/12/2015 2:08 PM, Bjorn Helgaas wrote:
> On Wed, Mar 11, 2015 at 11:06:08AM -0700, Ray Jui wrote:
>> This adds the support for Broadcom iProc PCIe controller
>>
>> pcie-iproc.c servers as the common core driver, and front-end bus
>> interface needs to be added to support different bus interfaces
>>
>> pcie-iproc-pltfm.c contains the support for the platform bus interface
>>
>> Signed-off-by: Ray Jui <rjui@...adcom.com>
>> Reviewed-by: Scott Branden <sbranden@...adcom.com>
>> ...
> 
>> +static int iproc_pcie_check_link(struct iproc_pcie *pcie, struct pci_bus *bus)
>> +{
>> +	u8 hdr_type;
>> +	u32 link_ctrl;
>> +	u16 pos, link_status;
>> +	int link_is_active = 0;
>> +
>> +	/* make sure we are not in EP mode */
>> +	pci_bus_read_config_byte(bus, 0, PCI_HEADER_TYPE, &hdr_type);
>> +	if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE) {
>> +		dev_err(pcie->dev, "in EP mode, hdr=0x08%x\n", hdr_type);
> 
> "0x08%x" doesn't look right.  I changed it to "%#02x"; is that what you
> intended?
> 
You are right. Will fix it along with the Kconfig fix (so it won't get
compiled for non-ARM platforms). I'll submit v7?

Thanks,

Ray
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