linux-kernel - [PATCH v2 0/2] Migrate PCIe-IDIO-24 GPIO driver to the regmap API

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Message-Id: <cover.1677555956.git.william.gray@linaro.org>
Date:   Mon, 27 Feb 2023 22:56:26 -0500
From:   William Breathitt Gray <william.gray@...aro.org>
To:     linus.walleij@...aro.org, brgl@...ev.pl
Cc:     broonie@...nel.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, quarium@...il.com,
        jhentges@...esio.com, jay.dolan@...esio.com,
        William Breathitt Gray <william.gray@...aro.org>
Subject: [PATCH v2 0/2] Migrate PCIe-IDIO-24 GPIO driver to the regmap API

Changes in v2:
 - Simplify PCIe-IDIO-24 register offset defines to remove superfluous
   arithmetic
 - Check for NULL pointer after chip->irq_drv_data allocation
 - Set gpio_regmap drvdata and use gpio_regmap_get_drvdata() to get the
   regmap in idio_24_reg_map_xlate()

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().

William Breathitt Gray (2):
  regmap: Pass regmap and irq_drv_data as parameters for
    set_type_config()
  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 | 693 ++++++++++++-------------------
 include/linux/regmap.h           |  12 +-
 4 files changed, 279 insertions(+), 442 deletions(-)


base-commit: 4827aae061337251bb91801b316157a78b845ec7
-- 
2.39.2