linux-kernel - Re: [PATCH 2/2] pci: host: pci-dra7xx: Enable x2 mode support

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Message-ID: <20160106141324.GA24713@rob-hp-laptop>
Date:	Wed, 6 Jan 2016 08:13:24 -0600
From:	Rob Herring <robh@...nel.org>
To:	Kishon Vijay Abraham I <kishon@...com>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, linux-omap@...r.kernel.org,
	linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, nsekhar@...com
Subject: Re: [PATCH 2/2] pci: host: pci-dra7xx: Enable x2 mode support

On Wed, Jan 06, 2016 at 04:19:53PM +0530, Kishon Vijay Abraham I wrote:
> Perform syscon configurations to get x2 mode to working in DRA74x and
> DRA72x. Also add a new compatible string to dfferentiate
> DRA72x and DRA74x, since b1c0 mask is different for both these platforms.
> 
> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
> ---
>  Documentation/devicetree/bindings/pci/ti-pci.txt |    8 ++-
>  drivers/pci/host/pci-dra7xx.c                    |   81 +++++++++++++++++++++-
>  2 files changed, 86 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt
> index 60e2516..0b10e84 100644
> --- a/Documentation/devicetree/bindings/pci/ti-pci.txt
> +++ b/Documentation/devicetree/bindings/pci/ti-pci.txt
> @@ -1,7 +1,9 @@
>  TI PCI Controllers
>  
>  PCIe Designware Controller
> - - compatible: Should be "ti,dra7-pcie""
> + - compatible: "ti,dra7-pcie" is deprecated
> +	       Should be "ti,dra746-pcie" for DRA74x
> +	       Should be "ti,dra726-pcie" for DRA72x
>   - reg : Two register ranges as listed in the reg-names property
>   - reg-names : The first entry must be "ti-conf" for the TI specific registers
>  	       The second entry must be "rc-dbics" for the designware pcie
> @@ -14,6 +16,10 @@ PCIe Designware Controller
>  	       where <X> is the instance number of the pcie from the HW spec.
>   - interrupts : Two interrupt entries must be specified. The first one is for
>  		main interrupt line and the second for MSI interrupt line.
> + - syscon-lane-conf : phandle/offset pair. Phandle to the system control module and the
> +   register offset to specify 1 lane or 2 lane.
> + - syscon-lane-sel : phandle/offset pair. Phandle to the system control module and the
> +   register offset to specify lane selection.

These should have a ti prefix.

>   - #address-cells,
>     #size-cells,
>     #interrupt-cells,
--
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