linux-kernel - Re: [PATCH v4 0/4] ata: libahci: Allow using a regulator for each port

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Date:	Fri, 16 Jan 2015 08:58:18 +0100
From:	Hans de Goede <hdegoede@...hat.com>
To:	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	Tejun Heo <tj@...nel.org>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
CC:	Antoine Ténart 
	<antoine.tenart@...e-electrons.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	linux-arm-kernel@...ts.infradead.org,
	Lior Amsalem <alior@...vell.com>,
	Tawfik Bayouk <tawfik@...vell.com>,
	Nadav Haklai <nadavh@...vell.com>,
	Mark Rutland <mark.rutland@....com>, devicetree@...r.kernel.org
Subject: Re: [PATCH v4 0/4] ata: libahci: Allow using a regulator for each
 port

Hi,

On 15-01-15 15:09, Gregory CLEMENT wrote:
> The current implementation of the libahci allows using one PHY per
> port but we still have one single regulator for the whole
> controller. This series adds the support of multiple regulators.
>
> This is the forth version of the series.
>
> The improvement of this version is the use of
> ahci_platform_put_resources to put the reference to the regulators.
>
> Thanks,
>
> Grégory

Thanks, patches 1 - 3 look good and are:

Acked-by: Hans de Goede <hdegoede@...hat.com>

Tejun, can you please queue up 1 - 3 ?

I still have some remarks wrt patch 4 (*), and it should probably go
upstream through another tree anyways.

Regards,

Hans


*) I didn't look closely at patch 4 as it seemed trivial, until now
that is ...



>
> Changelog:
>
>   v3 -> v4
> - Moved putting the reference to the regulators into the
>    ahci_platform_put_resources function.
> - Tested the port_dev pointer before dereferencing.
>
>   v2 -> v3:
> - put back the regulator inside the sub-node ports
> - made the ports platform devices when the device tree is used
> - released the regulator in case of error in the probe function
>
>   v1 -> v2:
> - Kept the case when no child node are present under the ahci node
> - Fix the test done under the label disable_target_pwrs
> - No more use an of_ version of the regulator framework and instead
>    associate each regulator of a port with an unique name.
> - Added the acked-by on the clean-up patch
>
> Gregory CLEMENT (4):
>    ata: libahci: Clean-up the ahci_platform_en/disable_phys functions
>    Documentation: bindings: Add the regulator property to the sub-nodes
>      AHCI bindings
>    ata: libahci: Allow using multiple regulators
>    ARM: mvebu: Armada 385 GP: Add regulators to the SATA port
>
>   .../devicetree/bindings/ata/ahci-platform.txt      |   9 +-
>   arch/arm/boot/dts/armada-388-gp.dts                | 126 +++++++++++
>   drivers/ata/ahci.h                                 |   2 +-
>   drivers/ata/ahci_imx.c                             |  14 +-
>   drivers/ata/libahci_platform.c                     | 236 ++++++++++++++-------
>   include/linux/ahci_platform.h                      |   2 +
>   6 files changed, 305 insertions(+), 84 deletions(-)
>
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