linux-kernel - Re: [PATCH v3 5/6] pinctrl: Add RTL8231 pin control and GPIO support

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Date:   Fri, 28 May 2021 08:43:58 +0200
From:   Michael Walle <michael@...le.cc>
To:     Sander Vanheule <sander@...nheule.net>
Cc:     Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-gpio@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/6] pinctrl: Add RTL8231 pin control and GPIO support

Am 2021-05-28 08:42, schrieb Sander Vanheule:
> On Fri, 2021-05-28 at 08:29 +0200, Michael Walle wrote:
>> > +       gpio_cfg.reg_dat_base = GPIO_REGMAP_ADDR(RTL8231_REG_GPIO_DATA0);
>> > +       gpio_cfg.reg_set_base = GPIO_REGMAP_ADDR(RTL8231_REG_GPIO_DATA0);
>> > +       gpio_cfg.reg_dir_in_base = GPIO_REGMAP_ADDR(RTL8231_REG_GPIO_DIR0);
>> 
>> Btw. you'd only need GPIO_REGMAP_ADDR(x) if x might be 0. Because you
>> have
>> a constant != 0 there, you could save the GPIO_REGMAP_ADDR() call. You
>> could drop this if you like, but no need to respin the series for 
>> this.
> 
> I will need to respin this series anyway, so I can drop the 
> GPIO_REGMAP_ADDR()
> calls. I was aware they are no-ops in this case, as register address 0 
> is not
> used for the GPIO functions, so mainly included them as a form of 
> documentation.

It's up to you if you like to change it or keep it.

-michael