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

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Message-ID: <20190608041044.GK24059@builder>
Date:   Fri, 7 Jun 2019 21:10:44 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Lee Jones <lee.jones@...aro.org>, alokc@...eaurora.org,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        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 Fri 07 Jun 16:02 PDT 2019, Linus Walleij wrote:

> 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?
> 

I'm waiting for a version that does not specify the reserved_gpios for
struct msm_pinctrl_soc_data sdm845_pinctrl {}, as this would override
the ability of getting these from DT.

I haven't seen such revision yet, will review it once I find it.

Regards,
Bjorn