This patch series primarily adds the powerdown-gpios support
for the IS31FL32xx controller.It also includes a fix and
dt-bindings updates derived from previous attempts [1].
Patch 1 and patch 2 are based on a previous attempt [1].
The driver-related updates in patch 2 have already been merged.
Patch 3 and Patch 4 add support for the powerdown-gpios property,
which corresponds to the SDB pin of the IS31FL32xx series chips.
This pin is used to enter and exit the hardware powerdown mode.
Patch 5 fixes errors introduced by previous changes. It impacts
the brightness control function of the IS31FL3236.
Patch 6 resolves regression caused by prior changes,
and fixes the 22kHz PWM output functionality for IS31FL3236A.
[1] https://lore.kernel.org/all/20250723-leds-is31fl3236a-v6-0-210328058625@thegoodpenguin.co.uk/
Changes in v7:
- Fix code style (spaces/tabs) and commit messages per checkpatch.pl outputs
- Link to v6: https://lore.kernel.org/al/20260520133343.1423946-1-jerrysteve1101@gmail.com/
Changes in v6:
- Add fix for 22kHz PWM output regression on IS31FL3236A
- Correct typo in vendor prefix for Integrated Silicon Solution
- Restore hardware shutdown state upon driver removal
- Link to v5: https://lore.kernel.org/all/20260508131139.1523597-1-jerrysteve1101@gmail.com/
Changes in v5:
- Adjust the unit-address in dt-binding to hex addresses, and remove unnecessary if/then constraints.
- Link to v4: https://lore.kernel.org/all/20260505145354.1267095-1-jerrysteve1101@gmail.com/
Changes in v4:
- Fixed compilation build errors due to missing header files
- Link to v3: https://lore.kernel.org/all/20260429154449.730880-1-jerrysteve1101@gmail.com/
Changes in v3:
- Replace shutdown-gpios with powerdown-gpios, follow gpio-consumer-common binding.
- Link to v2: https://lore.kernel.org/all/20260428023401.330308-1-jerrysteve1101@gmail.com/
Changes in v2:
- Fix $id mismatch with file name in dt-binding.
- Link to v1: https://lore.kernel.org/all/20260428003412.322032-1-jerrysteve1101@gmail.com/
Jun Yan (6):
dt-bindings: leds: issi,is31fl32xx: convert the binding to yaml
dt-bindings: leds: issi,is31fl32xx: add support for is31fl3236a
dt-bindings: leds: issi,is31fl32xx: Add powerdown-gpios property
leds: is31fl32xx: Add powerdown pin for hardware shutdown mode
leds: is31fl32xx: Fix missing brightness_steps for is31fl3236
leds: is31fl32xx: Move pwm frequency setting to init_regs()
.../bindings/leds/issi,is31fl32xx.yaml | 187 ++++++++++++++++++
.../bindings/leds/leds-is31fl32xx.txt | 53 -----
drivers/leds/leds-is31fl32xx.c | 34 ++--
3 files changed, 210 insertions(+), 64 deletions(-)
create mode 100644 Documentation/devicetree/bindings/leds/issi,is31fl32xx.yaml
delete mode 100644 Documentation/devicetree/bindings/leds/leds-is31fl32xx.txt
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2.54.0