From:   William Breathitt Gray <william.gray@linaro.org>
To:     linus.walleij@linaro.org, brgl@bgdev.pl
Cc:     broonie@kernel.org, linux-gpio@vger.kernel.org,
        linux-kernel@vger.kernel.org, michael@walle.cc, quarium@gmail.com,
        jhentges@accesio.com, jay.dolan@accesio.com,
        William Breathitt Gray <william.gray@linaro.org>
Subject: [PATCH 0/3] Migrate PCIe-IDIO-24 GPIO driver to the regmap API
Date:   Mon, 27 Feb 2023 20:53:39 -0500
Message-Id: <cover.1677547393.git.william.gray@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

The regmap API supports IO port accessors so we can take advantage of
regmap abstractions rather than handling access to the device registers
directly in the driver.

A patch to pass the device regmap and irq_drv_data as a parameters for
the struct regmap_irq_chip set_type_config() is included. This is needed
by idio_24_set_type_config() in order to update the type configuration
on the device as well as irq_drv_data for idio_24_handle_mask_sync().

A patch moving the struct gpio_regmap declaration to linux/gpio/regmap.h
is also included. This is needed by idio_24_reg_mask_xlate() in order to
determine the current offset's direction by using gpio->regmap in
regmap_read(). One point to consider is whether an alternative solution
is better of passing regmap in the reg_mask_xlate() parameter list; this
would avoid the need to include <linux/gpio/driver.h> in order to
resolve an incomplete type warning for struct gpio_chip due to the move.

William Breathitt Gray (3):
  regmap: Pass regmap and irq_drv_data as parameters for
    set_type_config()
  gpio: gpio-regmap: Expose struct gpio_regmap in linux/gpio/regmap.h
  gpio: pcie-idio-24: Migrate to the regmap API

 drivers/base/regmap/regmap-irq.c |  13 +-
 drivers/gpio/Kconfig             |   3 +
 drivers/gpio/gpio-pcie-idio-24.c | 697 ++++++++++++-------------------
 drivers/gpio/gpio-regmap.c       |  20 -
 include/linux/gpio/regmap.h      |  23 +-
 include/linux/regmap.h           |  12 +-
 6 files changed, 303 insertions(+), 465 deletions(-)


base-commit: 4827aae061337251bb91801b316157a78b845ec7
-- 
2.39.2