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From: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
To: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
	Matti Vaittinen <mazziesaccount@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
	Michael Walle <michael@walle.cc>,
	linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-power@fi.rohmeurope.com
Subject: [PATCH v2 0/3] gpio: gpio-regmap: Support few custom operations
Date: Fri, 21 May 2021 09:27:11 +0300	[thread overview]
Message-ID: <cover.1621577204.git.matti.vaittinen@fi.rohmeurope.com> (raw)

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Support providing some IC specific operations at gpio_regmap registration.

Implementation of few GPIO related functionalities are likely to be
very IC specific. For example the pin-configuration registers and the
pin validity checks. Allow IC driver to provide IC specific functions
which gpio-regmap can utilize for these IC specific configurations.
This should help broaden the gpio-regmap IC coverage without the need
of exposing the registered gpio_chip or struct gpio_regmap to IC drivers.

The set_config and init_valid_mask are used by ROHM BD71815 GPIO driver.
Convert the BD71815 GPIO driver to use gpio-regmap and get rid of some
code. Rest of the ROHM GPIO drivers are to be reworked after the
mechanism of adding IC specific functions is settled.

Some preliminary discussion can be seen here:
https://lore.kernel.org/linux-gpio/c4faac648d3e0c7f3dcb50f7e24c8b322e8c6974.camel@fi.rohmeurope.com/

Changelog v2:
 - Add cover-letter
 - Drop unnecessary checks for callback function validity
 - drop driver_data setting function as it is likely to be a
   race-condition-by-design

---

Matti Vaittinen (3):
  gpio: regmap: Support few IC specific operations
  gpio: gpio-regmap: Use devm_add_action()
  gpio: bd71815: Use gpio-regmap

 drivers/gpio/Kconfig        |   1 +
 drivers/gpio/gpio-bd71815.c | 106 ++++++++++--------------------------
 drivers/gpio/gpio-regmap.c  |  62 ++++++++++++++-------
 include/linux/gpio/regmap.h |  14 ++++-
 4 files changed, 84 insertions(+), 99 deletions(-)


base-commit: d07f6ca923ea0927a1024dfccafc5b53b61cfecc
-- 
2.25.4


-- 
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =] 

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             reply	other threads:[~2021-05-21  6:27 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21  6:27 Matti Vaittinen [this message]
2021-05-21  6:27 ` [PATCH v2 1/3] gpio: regmap: Support few IC specific operations Matti Vaittinen
2021-05-21  8:04   ` Michael Walle
2021-05-21 10:09   ` Andy Shevchenko
2021-05-21 10:19     ` Michael Walle
2021-05-21 10:25       ` Vaittinen, Matti
2021-05-21 10:46         ` Michael Walle
2021-05-21 11:36           ` Vaittinen, Matti
2021-05-21 11:19       ` Andy Shevchenko
2021-05-21 11:41         ` Vaittinen, Matti
2021-05-21 10:20     ` Vaittinen, Matti
2021-05-21  6:28 ` [PATCH v2 2/3] gpio: gpio-regmap: Use devm_add_action() Matti Vaittinen
2021-05-21  8:10   ` Michael Walle
2021-05-21  8:38     ` Bjørn Mork
2021-05-21 10:30       ` Vaittinen, Matti
2021-05-21 16:35         ` Bartosz Golaszewski
2021-05-24  5:01           ` Vaittinen, Matti
2021-05-21 10:10   ` Andy Shevchenko
2021-05-21  6:29 ` [PATCH v2 3/3] gpio: bd71815: Use gpio-regmap Matti Vaittinen
2021-05-21 10:12   ` Andy Shevchenko

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