linux-kernel - Re: [PATCH v4 05/10] gpio: regmap: Allow to retrieve ngpio

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Message-ID: <Z69ppU4LGvej0w-V@smile.fi.intel.com>
Date: Fri, 14 Feb 2025 18:04:53 +0200
From: Andy Shevchenko <andriy.shevchenko@...el.com>
To: Mathieu Dubois-Briand <mathieu.dubois-briand@...tlin.com>
Cc: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Kamel Bouhara <kamel.bouhara@...tlin.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Uwe Kleine-König <ukleinek@...nel.org>,
	Michael Walle <mwalle@...nel.org>, Mark Brown <broonie@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Danilo Krummrich <dakr@...nel.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
	linux-input@...r.kernel.org, linux-pwm@...r.kernel.org,
	Grégory Clement <gregory.clement@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v4 05/10] gpio: regmap: Allow to retrieve ngpio

On Fri, Feb 14, 2025 at 12:49:55PM +0100, Mathieu Dubois-Briand wrote:
> Drivers can leave the ngpio field of the gpio_regmap_config structure
> uninitialized, letting gpio_regmap_register() retrieve its value from
> the "ngpios" device property. Yet, the driver might still need to know
> the ngpio value later: allow to extract this value from the gpio_regmap
> structure.

I don't think it will be needed after looking at the user. Since we have
somewhat around ten of them already and no-one wanted it makes me feel
that this is a hack which can be avoided.

-- 
With Best Regards,
Andy Shevchenko