[PATCH v5 0/3] Migrate the PCIe-IDIO-24 and WS16C48 GPIO drivers to the regmap API

William Breathitt Gray
2023-03-26T16:26:21Z

Changes in v5:
- Refactor for map parameter removal from handle_mask_sync()
- Cleanups and line wrappings to 100 characters rather than 80
- Adjust to change mutex/spinlock_t type locks to raw_spin_lock_t type
- Remove pex8311_intcsr table configurations as superfluous
- Adjust to set pex8311_intcsr_regmap_config reg_base to
PLX_PEX8311_PCI_LCS_INTCSR
- Rename PAGE_FIELD_PAGE_* defines to POL_PAGE, ENAB_PAGE, and
INT_ID_PAGE
Changes in v4:
- Allocate idio24gpio before using it in idio_24_probe()
Changes in v3:
- Drop map from set_type_config() parameter list; regmap can be passed
by irq_drv_data instead
- Adjust idio_24_set_type_config() for parameter list
- Add mutex to prevent clobbering the COS_ENABLE register when masking
IRQ and setting their type configuration
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 irq_drv_data as a parameter for struct regmap_irq_chip
set_type_config() is included. This is needed by the
idio_24_set_type_config() and ws16c48_set_type_config() callbacks in
order to update the type configuration on their respective devices.

This patchset depends on the "Drop map from handle_mask_sync()
parameters" patchset [0].

[0] https://lore.kernel.org/all/cover.1679323449.git.william.gray@linaro.org/

William Breathitt Gray (3):
regmap: Pass irq_drv_data as a parameter for set_type_config()
gpio: pcie-idio-24: Migrate to the regmap API
gpio: ws16c48: Migrate to the regmap API

drivers/base/regmap/regmap-irq.c | 6 +-
drivers/gpio/Kconfig | 6 +
drivers/gpio/gpio-pcie-idio-24.c | 677 +++++++++++--------------------
drivers/gpio/gpio-ws16c48.c | 552 +++++++++----------------
include/linux/regmap.h | 5 +-
5 files changed, 445 insertions(+), 801 deletions(-)

base-commit: 2093bcd872321a5301470978231b23cc121e3476
prerequisite-patch-id: cd19046150b7cff1be4ac7152198777aa960a3df
prerequisite-patch-id: bd3e3830d9ce4f3876a77483364d7190b7fdffa7
--
2.39.2