linux-kernel - RE: [PATCH v4 2/2] gpio: mlxbf3: Support add_pin

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Message-ID: <CH2PR12MB389516E862515EA0A2A8C4E9D71BA@CH2PR12MB3895.namprd12.prod.outlook.com>
Date:   Fri, 18 Aug 2023 14:28:08 +0000
From:   Asmaa Mnebhi <asmaa@...dia.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
CC:     "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        "bgolaszewski@...libre.com" <bgolaszewski@...libre.com>,
        "brgl@...ev.pl" <brgl@...ev.pl>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v4 2/2] gpio: mlxbf3: Support add_pin_ranges()

> > Support add_pin_ranges() so that pinctrl_gpio_request() can be called.
> > The GPIO value is not modified when the user runs the "gpioset" tool.
> > This is because when gpiochip_generic_request is invoked by the
> > gpio-mlxbf3 driver, "pin_ranges" is empty so it skips "pinctrl_gpio_request()".
> > pinctrl_gpio_request() is essential in the code flow because it
> > changes the mux value so that software has control over modifying the GPIO
> value.
> > Adding add_pin_ranges() creates a dependency on the pinctrl-mlxbf3.c driver.
> >
> > Fixes: cd33f216d24 ("gpio: mlxbf3: Add gpio driver support")
> > Signed-off-by: Asmaa Mnebhi <asmaa@...dia.com>
> 
> You ignored my tag, why?

Oh, you already gave me a "Reviewed-By". Sorry I missed that. And Thank you! I will send a v5 with the tag.

Thanks.
Asmaa