diff options
| author | Aidan MacDonald <aidanmacdonald.0x0@gmail.com> | 2022-06-24 00:14:12 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-06-29 20:13:09 +0300 |
| commit | 610fdd668e6af48fcae7908161d14eee3a95ec92 (patch) | |
| tree | 2385b94eab55b6d3c215a43d401778f48b0e08dd /drivers/base/regmap | |
| parent | cffc2be30288786e242bceb9fedde4dfe6ce442d (diff) | |
| download | linux-610fdd668e6af48fcae7908161d14eee3a95ec92.tar.xz | |
regmap-irq: Remove an unnecessary restriction on type_in_mask
Check types_supported instead of checking type_rising/falling_val
when using type_in_mask interrupts. This makes the intent clearer
and allows a type_in_mask irq to support level or edge triggers,
rather than only edge triggers.
Update the documentation and comments to reflect the new behavior.
This shouldn't affect existing drivers, because if they didn't
set types_supported properly the type buffer wouldn't be updated.
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Link: https://lore.kernel.org/r/20220623211420.918875-5-aidanmacdonald.0x0@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base/regmap')
| -rw-r--r-- | drivers/base/regmap/regmap-irq.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index dca27b4e29d3..fd7c4315d16b 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -252,22 +252,19 @@ static void regmap_irq_enable(struct irq_data *data) struct regmap *map = d->map; const struct regmap_irq *irq_data = irq_to_regmap_irq(d, data->hwirq); unsigned int reg = irq_data->reg_offset / map->reg_stride; - unsigned int mask, type; - - type = irq_data->type.type_falling_val | irq_data->type.type_rising_val; + unsigned int mask; /* * The type_in_mask flag means that the underlying hardware uses - * separate mask bits for rising and falling edge interrupts, but - * we want to make them into a single virtual interrupt with - * configurable edge. + * separate mask bits for each interrupt trigger type, but we want + * to have a single logical interrupt with a configurable type. * - * If the interrupt we're enabling defines the falling or rising - * masks then instead of using the regular mask bits for this - * interrupt, use the value previously written to the type buffer - * at the corresponding offset in regmap_irq_set_type(). + * If the interrupt we're enabling defines any supported types + * then instead of using the regular mask bits for this interrupt, + * use the value previously written to the type buffer at the + * corresponding offset in regmap_irq_set_type(). */ - if (d->chip->type_in_mask && type) + if (d->chip->type_in_mask && irq_data->type.types_supported) mask = d->type_buf[reg] & irq_data->mask; else mask = irq_data->mask; |