[PATCH v8 0/9] gpio: realtek: Add support for Realtek DHC RTD1625

[Yu-Chun Lin]

For better review flow, this series includes Andy Shevchenko's
gpio-regmap fix patches [1] as a prerequisite. The first patch
reverts the previously applied patch from Bartosz Golaszewski.

This series then adds GPIO support for the Realtek DHC RTD1625 SoC.

Unlike the existing driver (gpio-rtd.c) which uses shared bank
registers, the RTD1625 features a per-pin register architecture where
each GPIO line is managed by its own dedicated 32-bit control register.
This distinct hardware design requires a new, separate driver.

Link: https://lore.kernel.org/lkml/20260702130903.1790633-1-andriy.shevchenko@xxxxxxxxxxxxxxx/ [1]
---
Changes in v8:
Patch 1:
- Add Acked-by tag from Linus.

Patch 2:
- Add Reviewed-by tag from Linus.

Patch 3
- Add Reviewed-by tags from Mathieu and Linus.

Patch 4
- Add Reviewed-by tag from Linus.

Patch 5
- Remove GPIO_REGMAP_IN and GPIO_REGMAP_OUT from 'enum gpio_regmap_operation'
and one extra regmap_read in gpio_regmap_get().
- Add Acked-by tags from William Breathitt Gray and Jonathan Cameron.

Patch 6
- Add Reviewed-by tags from Michael and Linus.
- Improve kernel-doc comments for 'enum gpio_regmap_operation' and value_xlate.

Patch 7
- Move the assignment of gpio->set_config into the if (config->set_config)
block.
- Add Reviewed-by tags from Michael and Linus.

Patch 8:
- Add Reviewed-by tag from Linus.

Patch 9
- Add error handlers in td1625_gpio_irq_handle().
- Move the direction-checking logic from the core to our custom
reg_mask_xlate() callback.
- Add Reviewed-by tag from Linus.

v7: https://lore.kernel.org/lkml/20260723034237.2501507-1-eleanor.lin@xxxxxxxxxxx/
v6: https://lore.kernel.org/lkml/20260721065802.689530-1-eleanor.lin@xxxxxxxxxxx/
v5: https://lore.kernel.org/lkml/20260702090115.2564318-1-eleanor.lin@xxxxxxxxxxx/
v4: https://lore.kernel.org/lkml/20260622092335.1166876-1-eleanor.lin@xxxxxxxxxxx/
v3: https://lore.kernel.org/lkml/20260512033317.1602537-1-eleanor.lin@xxxxxxxxxxx/
v2: https://lore.kernel.org/lkml/20260408025243.1155482-1-eleanor.lin@xxxxxxxxxxx/
v1: https://lore.kernel.org/lkml/20260331113835.3510341-1-eleanor.lin@xxxxxxxxxxx/

Andy Shevchenko (3):
  gpio: regmap: Provide default IRQ resource request and release
    callbacks
  gpio: regmap: Apply default resource callbacks for regmap IRQ chip
  gpio: regmap: Order kernel-doc descriptions with the actual appearance

Tzuyi Chang (1):
  gpio: realtek: Add driver for Realtek DHC RTD1625 SoC

Yu-Chun Lin (5):
  Revert "gpio: realtek: Add driver for Realtek DHC RTD1625 SoC"
  gpio: regmap: Add gpio_regmap_operation to extend reg_mask_xlate
    callback
  gpio: regmap: Add value_xlate callback
  gpio: regmap: Add set_config callback
  gpio: regmap: Add IRQ enable/disable helpers

 drivers/gpio/Kconfig                  |   2 +
 drivers/gpio/gpio-104-idi-48.c        |   7 +-
 drivers/gpio/gpio-i8255.c             |   4 +-
 drivers/gpio/gpio-idio-16.c           |   6 +-
 drivers/gpio/gpio-max7360.c           |   8 +-
 drivers/gpio/gpio-pcie-idio-24.c      |   6 +-
 drivers/gpio/gpio-regmap.c            | 104 ++++++-
 drivers/gpio/gpio-rtd1625.c           | 408 +++++++++++++++-----------
 drivers/iio/adc/ad7173.c              |   8 +-
 drivers/iio/addac/stx104.c            |   6 +-
 drivers/pinctrl/bcm/pinctrl-bcm63xx.c |   1 +
 drivers/pinctrl/pinctrl-tps6594.c     |   1 +
 include/linux/gpio/regmap.h           |  73 ++++-
 13 files changed, 421 insertions(+), 213 deletions(-)

-- 
2.43.0