diff options
| author |   Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> | 2025-05-22 14:06:20 +0200 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2025-05-22 13:11:50 +0100 |
| commit | 1c12fbdf40e17df2efc24bf2009a0c3bfa75bfa7 (patch) | |
| tree | 6e96cd8d1361fb4dabd328464fd373df3860a3b0 /include | |
| parent | regmap-irq: Use dedicated interrupt wake setters (diff) | |
| download | wireguard-linux-1c12fbdf40e17df2efc24bf2009a0c3bfa75bfa7.tar.xz wireguard-linux-1c12fbdf40e17df2efc24bf2009a0c3bfa75bfa7.zip | |
regmap: irq: Add support for chips without separate IRQ status
Some GPIO chips allow to rise an IRQ on GPIO level changes but do not
provide an IRQ status for each separate line: only the current gpio
level can be retrieved.
Add support for these chips, emulating IRQ status by comparing GPIO
levels with the levels during the previous interrupt.
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250522-mdb-max7360-support-v9-5-74fc03517e41@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/regmap.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index d17c5ea3d55d..02b83f5499b8 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -1641,6 +1641,8 @@ struct regmap_irq_chip_data; * @ack_invert: Inverted ack register: cleared bits for ack. * @clear_ack: Use this to set 1 and 0 or vice-versa to clear interrupts. * @status_invert: Inverted status register: cleared bits are active interrupts. + * @status_is_level: Status register is actuall signal level: Xor status + * register with previous value to get active interrupts. * @wake_invert: Inverted wake register: cleared bits are wake enabled. * @type_in_mask: Use the mask registers for controlling irq type. Use this if * the hardware provides separate bits for rising/falling edge @@ -1704,6 +1706,7 @@ struct regmap_irq_chip { unsigned int ack_invert:1; unsigned int clear_ack:1; unsigned int status_invert:1; + unsigned int status_is_level:1; unsigned int wake_invert:1; unsigned int type_in_mask:1; unsigned int clear_on_unmask:1; |