linux-kernel - Re: [PATCH v3 2/3] ARM: DRA7: add pdata-quirks to do reset of PCIe

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Message-ID: <20160115192224.GD3904@atomide.com>
Date:	Fri, 15 Jan 2016 11:22:25 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	Suman Anna <s-anna@...com>
Cc:	Kishon Vijay Abraham I <kishon@...com>,
	Bjorn Helgaas <bhelgaas@...gle.com>, richardcochran@...il.com,
	Russell King <linux@....linux.org.uk>,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, nsekhar@...com
Subject: Re: [PATCH v3 2/3] ARM: DRA7: add pdata-quirks to do reset of PCIe

* Suman Anna <s-anna@...com> [160115 11:20]:
> On 01/14/2016 08:11 AM, Kishon Vijay Abraham I wrote:
> > Create platform data for PCIe and populate it with function
> > pointers to perform assert and deassert of PCIe reset lines.
> > The PCIe driver can use the callbacks provided here to
> > reset the PCIe.
> > This will be removed once the reset contoller driver is
> > available to reset PCIe.
...

> > +/**
> > + * struct pci_dra7xx_platform_data - platform data specific to pci in dra7xx
> > + * @reset_name: name of the reset line
> > + * @assert_reset: callback for performing assert reset operation
> > + * @deassert_reset: callback for performing deassert reset operation
> > + */
> > +struct pci_dra7xx_platform_data {
> > +	const char *reset_name;
> > +
> > +	int (*assert_reset)(struct platform_device *pdev, const char *name);
> > +	int (*deassert_reset)(struct platform_device *pdev, const char *name);
> > +};

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?

Regards,

Tony