linux-kernel - Re: [PATCH v2] gpio: brcmstb: allow 0 width GPIO banks

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Date:   Thu, 30 Aug 2018 11:05:43 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     justinpopo6@...il.com
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Gregory Fong <gregory.0xf0@...il.com>,
        Brian Norris <computersforpeace@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list <bcm-kernel-feedback-list@...adcom.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] gpio: brcmstb: allow 0 width GPIO banks

On Sat, Aug 18, 2018 at 1:47 AM <justinpopo6@...il.com> wrote:

> From: Justin Chen <justinpopo6@...il.com>
>
> Sometimes we have empty banks within the GPIO block. This commit allows
> proper handling of 0 width GPIO banks. We handle 0 width GPIO banks by
> incrementing the bank and number of GPIOs, but not initializing them.
> This will mean a call into the non-existent GPIOs will return an error.
>
> Also remove "GPIO registered" dev print. This information is misleading
> since the incremented banks and gpio_base do not reflect the actual GPIOs
> that get initialized. We leave this information out since it is already
> printed with dev_dbg.
>
> Signed-off-by: Justin Chen <justinpopo6@...il.com>

Patch applied with Florian's ACK.

Yours,
Linus Walleij