Linux GPIO subsystem development
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From: William Breathitt Gray <william.gray@linaro.org>
To: Michael Walle <michael@walle.cc>
Cc: linus.walleij@linaro.org, brgl@bgdev.pl, broonie@kernel.org,
	linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	quarium@gmail.com, jhentges@accesio.com, jay.dolan@accesio.com
Subject: Re: [PATCH 2/3] gpio: gpio-regmap: Expose struct gpio_regmap in linux/gpio/regmap.h
Date: Mon, 27 Feb 2023 22:12:27 -0500	[thread overview]
Message-ID: <Y/1xG+K1yzcRZtZ4@fedora> (raw)
In-Reply-To: <0e0901de3668baec5ce7cd4836c045a5@walle.cc>

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On Tue, Feb 28, 2023 at 09:44:02PM +0100, Michael Walle wrote:
> Hi,
> 
> Am 2023-02-28 02:53, schrieb William Breathitt Gray:
> > A struct gpio_regmap is passed as a parameter for reg_mask_xlate(), but
> > for callbacks to access its members the declaration must be exposed.
> 
> That parameter is only an opaque one to call any gpio_regmap_*().
> 
> > Move the struct gpio_regmap declaration from drivers/gpio/gpio-regmap.c
> > to include/linux/gpio/regmap.h so callbacks can properly interact with
> > struct gpio_regmap members.
> 
> That struct should be kept private. It seems you only need the
> regmap. Either introduce a gpio_regmap_get_regmap() or add the
> regmap to a private struct and use gpio_regmap_get_drvdata().
> 
> -michael

Ah, I'll drop this patch then and use gpio_regmap_get_drvdata() in v2
instead to get access to the regmap.

William Breathitt Gray

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  reply	other threads:[~2023-02-28 20:50 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-28  1:53 [PATCH 0/3] Migrate PCIe-IDIO-24 GPIO driver to the regmap API William Breathitt Gray
2023-02-28  1:53 ` [PATCH 1/3] regmap: Pass regmap and irq_drv_data as parameters for set_type_config() William Breathitt Gray
2023-02-28  1:53 ` [PATCH 2/3] gpio: gpio-regmap: Expose struct gpio_regmap in linux/gpio/regmap.h William Breathitt Gray
2023-02-28 20:44   ` Michael Walle
2023-02-28  3:12     ` William Breathitt Gray [this message]
2023-02-28  1:53 ` [PATCH 3/3] gpio: pcie-idio-24: Migrate to the regmap API William Breathitt Gray
2023-03-01  4:11   ` kernel test robot
2023-02-28 19:09 ` [PATCH 0/3] Migrate PCIe-IDIO-24 GPIO driver " Mark Brown
2023-02-28  2:19   ` William Breathitt Gray
2023-02-28 19:28     ` Mark Brown
2023-02-28  2:40       ` William Breathitt Gray

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