linux-kernel - Re: [PATCH RESEND v3 0/2] syscon: Alter syscon and reboot drivers

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Date:   Thu, 28 May 2020 09:03:11 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Maxim Kaurkin <Maxim.Kaurkin@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Ramil Zaripov <Ramil.Zaripov@...kalelectronics.ru>,
        Ekaterina Skachko <Ekaterina.Skachko@...kalelectronics.ru>,
        Vadim Vlasov <V.Vlasov@...kalelectronics.ru>,
        Alexey Kolotnikov <Alexey.Kolotnikov@...kalelectronics.ru>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Arnd Bergmann <arnd@...db.de>,
        Rob Herring <robh+dt@...nel.org>, linux-mips@...r.kernel.org,
        devicetree@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND v3 0/2] syscon: Alter syscon and reboot drivers

Hi,

On Tue, May 26, 2020 at 04:50:59PM +0300, Serge Semin wrote:
> This is a small patchset about tuning the syscon infrastructure a bit.
> As it's going to be general in the framework of the Baikal-T1 SoC support
> integration into the kernel, we suggest to replace the legacy text-based
> syscon-reboot-mode dts-bindings file with yaml-based one. Then seeing a
> syscon reboot block is normally expected to be a part of a system
> controller and based on the discussion
> https://lore.kernel.org/linux-pm/20200306130402.1F4F0803079F@mail.baikalelectronics.ru/
> we decided to alter the syscon reboot driver so one would also try to fetch
> the syscon registers map from a parental DT node. regmap property is left
> supported although it's marked as deprecated from now.
> 
> This patchset is rebased and tested on the mainline Linux kernel 5.7-rc4:
> 0e698dfa2822 ("Linux 5.7-rc4")
> tag: v5.7-rc4
> 
> Changelog v2:
> - Add Sebastian' Acked-by tag to patch 1.
> - Use a shorter summary describing the bindings modification patches.
> - Our corporate email server doesn't change Message-Id anymore, so the patchset
>   is resubmitted being in the cover-letter-threaded format.
> - Discard patch with syscon "-endian" property support. As Rob said It shall be
>   in the common dt-schema.
> - Replace patches of adding a regmap property support to the syscon-reboot-mode
>   with patches making syscon-reboot a sub-node of a system controller node.
> - Mark regmap property as deprecated from now.
> 
> Link: https://lore.kernel.org/linux-pm/20200507233846.11548-1-Sergey.Semin@baikalelectronics.ru/
> Changelog v3:
> - Discard the commit 6acd3ecd88ff ("dt-bindings: power: reset: Convert
>   syscon-reboot-mode to DT schema") since it has been merged in by Sebatian.
> - Add Rob's Reviewed-by tag to the patch "dt-bindings: power: reset: Unrequire
>   regmap property in syscon-reboot node"
> 
> Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> Cc: Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>
> Cc: Maxim Kaurkin <Maxim.Kaurkin@...kalelectronics.ru>
> Cc: Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>
> Cc: Ramil Zaripov <Ramil.Zaripov@...kalelectronics.ru>
> Cc: Ekaterina Skachko <Ekaterina.Skachko@...kalelectronics.ru>
> Cc: Vadim Vlasov <V.Vlasov@...kalelectronics.ru>
> Cc: Alexey Kolotnikov <Alexey.Kolotnikov@...kalelectronics.ru>
> Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: linux-mips@...r.kernel.org
> Cc: devicetree@...r.kernel.org
> Cc: linux-pm@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> 
> Serge Semin (2):
>   dt-bindings: power: reset: Unrequire regmap property in syscon-reboot
>     node
>   power: reset: syscon-reboot: Add parental syscon support
> 
>  .../bindings/power/reset/syscon-reboot.yaml       | 15 ++++++++++-----
>  drivers/power/reset/syscon-reboot.c               |  7 +++++--
>  2 files changed, 15 insertions(+), 7 deletions(-)

Thanks, I queued both patches to power-supply's for-next branch.

-- Sebastian

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