linux-kernel - Re: [net-next: PATCH v3 0/7] Armada 7k/8k PP2 ACPI support

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Message-ID: <20180118155316.GA32010@xora-haswell>
Date:   Thu, 18 Jan 2018 15:53:16 +0000
From:   graeme.gregory@...aro.org
To:     Marcin Wojtas <mw@...ihalf.com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        netdev@...r.kernel.org, linux-acpi@...r.kernel.org,
        davem@...emloft.net, linux@...linux.org.uk,
        rafael.j.wysocki@...el.com, andrew@...n.ch, f.fainelli@...il.com,
        antoine.tenart@...e-electrons.com,
        thomas.petazzoni@...e-electrons.com,
        gregory.clement@...e-electrons.com, stefanc@...vell.com,
        nadavh@...vell.com, neta@...vell.com, ard.biesheuvel@...aro.org,
        jaz@...ihalf.com, tn@...ihalf.com
Subject: Re: [net-next: PATCH v3 0/7] Armada 7k/8k PP2 ACPI support

On Wed, Jan 17, 2018 at 05:55:39PM +0100, Marcin Wojtas wrote:
> Hi,
> 
> This is a third version of the patchset introducing mvpp2 driver ability
> to operate with ACPI. Until follow-up generic MDIO is introduced
> it can using the link interrupt capability (a.k.a. in-band management)
> on all ports, 1000BaseT RGMII included.
> Driver operation was tested on top of the net-next branch
> with both DT and ACPI on MacchiatoBin and Armada 7040 DB boards.
> 
> The main changes were requested during v2 review, which was
> adding generic helper routines for:
> * interating over available fwnodes (new patch 4/7)
> * getting IRQ directly from fwnode (new patch 3/7)
> Thanks to the latter the driver code could be simplified
> and allowed to drop formula-based IRQ obtaining. Changes are
> summarized in the changelog below.
> 
> mvpp2 driver can work with the ACPI representation, as exposed
> on a public branch:
> https://github.com/MarvellEmbeddedProcessors/edk2-open-platform/commits/marvell-armada-wip
> It was compiled together with the most recent Tianocore EDK2 revision.
> Please refer to the firmware build instruction on MacchiatoBin board:
> http://wiki.macchiatobin.net/tiki-index.php?page=Build+from+source+-+UEFI+EDK+II
> 
> ACPI representation of PP2 controllers (withouth PHY support) can
> be viewed in the github:
> * MacchiatoBin:
> https://github.com/MarvellEmbeddedProcessors/edk2-open-platform/blob/71ae395da1661374b0f07d1602afb1eee56e9794/Platforms/Marvell/Armada/AcpiTables/Armada80x0McBin/Dsdt.asl#L201
> 
> * Armada 7040 DB:
> https://github.com/MarvellEmbeddedProcessors/edk2-open-platform/blob/71ae395da1661374b0f07d1602afb1eee56e9794/Platforms/Marvell/Armada/AcpiTables/Armada70x0/Dsdt.asl#L131
> 
> I will appreciate any comments or remarks.
> 

Nice work, this looks pretty neat to me, for series.

Reviewed-by: Graeme Gregory <graeme.gregory@...aro.org>

Thanks

Graeme

> Best regards,
> Marcin
> 
> Changelog:
> v2 -> v3:
> * 1/7, 2/7
>     - Add Rafael's Acked-by's
> * 3/7, 4/7
>     - New patches
> * 6/7, 7/7
>     - Update driver with new helper routines usage
>     - Improve commit log.
> 
> v1 -> v2:
> * Remove MDIO patches
> * Use PP2 ports only with link interrupts
> * Release second region resources in mvpp2 driver (code moved from
>   mvmdio), as explained in details in 5/5 commit message.
> 
> 
> Marcin Wojtas (7):
>   device property: Introduce fwnode_get_mac_address()
>   device property: Introduce fwnode_get_phy_mode()
>   device property: Introduce fwnode_irq_get()
>   device property: Allow iterating over available child fwnodes
>   net: mvpp2: simplify maintaining enabled ports' list
>   net: mvpp2: use device_*/fwnode_* APIs instead of of_*
>   net: mvpp2: enable ACPI support in the driver
> 
>  drivers/base/property.c              | 105 ++++++++--
>  drivers/net/ethernet/marvell/mvpp2.c | 206 ++++++++++++--------
>  include/linux/property.h             |  11 ++
>  3 files changed, 230 insertions(+), 92 deletions(-)
> 
> -- 
> 2.7.4
> 

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