linux-kernel - Re: [PATCH 2/3] ARM: sunxi: Add an ahci-platform compatible AHCI driver for the Allwinner SUNXi series of SoCs

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Date:	Wed, 04 Dec 2013 13:49:59 +0100
From:	Oliver Schinagl <oliver@...inagl.nl>
To:	Mark Rutland <mark.rutland@....com>
CC:	"tj@...nel.org" <tj@...nel.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	"rob.herring@...xeda.com" <rob.herring@...xeda.com>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"dev@...ux-sunxi.org" <dev@...ux-sunxi.org>,
	"maxime.ripard@...e-electrons.com" <maxime.ripard@...e-electrons.com>,
	"ijc@...lion.org.uk" <ijc@...lion.org.uk>,
	"hdegoede@...hat.com" <hdegoede@...hat.com>,
	"oliver+list@...inagl.nl" <oliver+list@...inagl.nl>
Subject: Re: [PATCH 2/3] ARM: sunxi: Add an ahci-platform compatible AHCI
 driver for the Allwinner SUNXi series of SoCs


On 04-12-13 13:26, Mark Rutland wrote:
> On Wed, Dec 04, 2013 at 12:10:54PM +0000, oliver@...inagl.nl wrote:
>> From: Oliver Schinagl <oliver@...inagl.nl>
>>
>> This patch adds support for the sunxi series of SoC's by allwinner. It
>> plugs into the ahci-platform framework.
>>
>> Note: Currently it uses a somewhat hackish approach that probably needs
>> a lot more work, but does the same as the IMX SoC's.
>>
>> Signed-off-by: Olliver Schinagl <oliver@...inagl.nl>
>> ---
>>   .../devicetree/bindings/ata/ahci-sunxi.txt         |  24 ++
>>   drivers/ata/Kconfig                                |   9 +
>>   drivers/ata/Makefile                               |   1 +
>>   drivers/ata/ahci_platform.c                        |  12 +
>>   drivers/ata/ahci_sunxi.c                           | 305 +++++++++++++++++++++
>>   5 files changed, 351 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/ata/ahci-sunxi.txt
>>   create mode 100644 drivers/ata/ahci_sunxi.c
>>
>> diff --git a/Documentation/devicetree/bindings/ata/ahci-sunxi.txt b/Documentation/devicetree/bindings/ata/ahci-sunxi.txt
>> new file mode 100644
>> index 0000000..0792fa5
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/ata/ahci-sunxi.txt
>> @@ -0,0 +1,24 @@
>> +Allwinner SUNXI AHCI SATA Controller
>> +
>> +SATA nodes are defined to describe on-chip Serial ATA controllers.
>> +Each SATA controller should have its own node.
>> +
>> +Required properties:
>> +- compatible   : compatible list, contains "allwinner,sun4i-a10-ahci"
> - compatible: Should contain "allwinner,sun4i-a10-ahci"
>
>> +- reg          : <registers mapping>
> - reg: The offset and length of the MMIO registers.
>
>> +- interrupts   : <interrupt mapping for AHCI IRQ>
> - interrupts: An interrupt-specifier for the ACHI interrupt
>
>> +- clocks       : clocks for ACHI
>> +- clock-names  : clock names for AHCI
> Please _define_ the set of clock-names you expect. This binding is
> meaningless without it. If you require clock-names, define the clocks
> property in terms of it.
I copied ahci_platform.txt and filled in the missing bits, I will 
improve all the above. Appologies!
>
> Thanks,
> Mark.

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