linux-kernel - Re: [PATCH 3/8] pinctrl: msm: Add ability for drivers to supply a reserved GPIO list

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Date:   Sat, 8 Jun 2019 01:02:09 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     alokc@...eaurora.org, Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Felipe Balbi <balbi@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        jlhugo@...il.com, linux-i2c@...r.kernel.org,
        MSM <linux-arm-msm@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH 3/8] pinctrl: msm: Add ability for drivers to supply a
 reserved GPIO list

On Wed, Jun 5, 2019 at 1:43 PM Lee Jones <lee.jones@...aro.org> wrote:

> When booting MSM based platforms with Device Tree or some ACPI
> implementations, it is possible to provide a list of reserved pins
> via the 'gpio-reserved-ranges' and 'gpios' properties respectively.
> However some ACPI tables are not populated with this information,
> thus it has to come from a knowledgable device driver instead.
>
> Here we provide the MSM common driver with additional support to
> parse this informtion and correctly populate the widely used
> 'valid_mask'.
>
> Signed-off-by: Lee Jones <lee.jones@...aro.org>

Exactly how we should use of the API, so if Björn can supply an
ACK to patches 3 and 4 I'm happy to apply them.

Björn?

Yours,
Linus Walleij