linux-kernel - Re: [PATCH v2 07/14] mailbox: pcc: Use PCC mailbox channel pointer instead of standard

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Date:   Mon, 4 Oct 2021 22:05:51 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Sudeep Holla <sudeep.holla@....com>
Cc:     linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Cristian Marussi <cristian.marussi@....com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Jassi Brar <jassisinghbrar@...il.com>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-hwmon@...r.kernel.org, linux-i2c@...r.kernel.org
Subject: Re: [PATCH v2 07/14] mailbox: pcc: Use PCC mailbox channel pointer
 instead of standard

On Fri, Sep 17, 2021 at 02:33:50PM +0100, Sudeep Holla wrote:
> Now that we have all the shared memory region information populated in
> the pcc_mbox_chan, let us propagate the pointer to the same as the
> return value to pcc_mbox_request channel.
> 
> This eliminates the need for the individual users of PCC mailbox to
> parse the PCCT subspace entries and fetch the shmem information. This
> also eliminates the need for PCC mailbox controller to set con_priv to
> PCCT subspace entries. This is required as con_priv is private to the
> controller driver to attach private data associated with the channel and
> not meant to be used by the mailbox client/users.
> 
> Let us convert all the users of pcc_mbox_{request,free}_channel to use
> new interface.
> 
> Cc: Jean Delvare <jdelvare@...e.com>
> Cc: Guenter Roeck <linux@...ck-us.net>
> Cc: Wolfram Sang <wsa@...nel.org>
> Cc: linux-hwmon@...r.kernel.org
> Cc: linux-i2c@...r.kernel.org
> Signed-off-by: Sudeep Holla <sudeep.holla@....com>
> ---
>  drivers/acpi/cppc_acpi.c               | 43 ++++++------------
>  drivers/hwmon/xgene-hwmon.c            | 35 ++++++--------
>  drivers/i2c/busses/i2c-xgene-slimpro.c | 33 +++++---------
>  drivers/mailbox/pcc.c                  | 63 ++++++++------------------
>  include/acpi/pcc.h                     | 12 ++---

There is no maintainer for the xgene driver, but I trust you and other
reviewers of this whole series on this. The I2C part is a minor piece
anyhow. So:

Acked-by: Wolfram Sang <wsa@...nel.org>


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