diff options
| author | Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> | 2018-12-18 13:59:31 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-12-19 18:35:45 +0000 |
| commit | 1c2928e3e3212252b505b746ec10951027a95813 (patch) | |
| tree | 210803e83222845fa5461b97aef044fcac39cc2a /include | |
| parent | 84267d1b18abee0c141553396f52a23db71660d3 (diff) | |
regmap: regmap-irq/gpio-max77620: add level-irq support
Add level active IRQ support to regmap-irq irqchip. Change breaks
existing regmap-irq type setting. Convert the existing drivers which
use regmap-irq with trigger type setting (gpio-max77620) to work
with this new approach. So we do not magically support level-active
IRQs on gpio-max77620 - but add support to the regmap-irq for chips
which support them =)
We do not support distinguishing situation where HW supports rising
and falling edge detection but not both. Separating this would require
inventing yet another flags for IRQ types.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/regmap.h | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index c54c778f3051..0f1832e4c2c8 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -1089,22 +1089,37 @@ int regmap_fields_read(struct regmap_field *field, unsigned int id, int regmap_fields_update_bits_base(struct regmap_field *field, unsigned int id, unsigned int mask, unsigned int val, bool *change, bool async, bool force); +/** + * struct regmap_irq_type - IRQ type definitions. + * + * @type_reg_offset: Offset register for the irq type setting. + * @type_rising_val: Register value to configure RISING type irq. + * @type_falling_val: Register value to configure FALLING type irq. + * @type_level_low_val: Register value to configure LEVEL_LOW type irq. + * @type_level_high_val: Register value to configure LEVEL_HIGH type irq. + * @types_supported: logical OR of IRQ_TYPE_* flags indicating supported types. + */ +struct regmap_irq_type { + unsigned int type_reg_offset; + unsigned int type_reg_mask; + unsigned int type_rising_val; + unsigned int type_falling_val; + unsigned int type_level_low_val; + unsigned int type_level_high_val; + unsigned int types_supported; +}; /** * struct regmap_irq - Description of an IRQ for the generic regmap irq_chip. * * @reg_offset: Offset of the status/mask register within the bank * @mask: Mask used to flag/control the register. - * @type_reg_offset: Offset register for the irq type setting. - * @type_rising_mask: Mask bit to configure RISING type irq. - * @type_falling_mask: Mask bit to configure FALLING type irq. + * @type: IRQ trigger type setting details if supported. */ struct regmap_irq { unsigned int reg_offset; unsigned int mask; - unsigned int type_reg_offset; - unsigned int type_rising_mask; - unsigned int type_falling_mask; + struct regmap_irq_type type; }; #define REGMAP_IRQ_REG(_irq, _off, _mask) \ |