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| author | Aidan MacDonald <aidanmacdonald.0x0@gmail.com> | 2022-06-23 22:14:15 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-06-29 18:13:12 +0100 |
| commit | f7cc5062d6e5ca439708e8403b1a622cca75adf7 (patch) | |
| tree | cbdf161048f958131a0b0e6abdb45d4bb45ab021 /drivers/base | |
| parent | ad22b3e98f9430896bd4bd8f4fbff4667f02a0c8 (diff) | |
| download | linux-rpi-f7cc5062d6e5ca439708e8403b1a622cca75adf7.tar.gz linux-rpi-f7cc5062d6e5ca439708e8403b1a622cca75adf7.tar.bz2 linux-rpi-f7cc5062d6e5ca439708e8403b1a622cca75adf7.zip | |
regmap-irq: Refactor checks for status bulk read support
There are several conditions that must be satisfied to support
bulk read of status registers. Move the check into a function
to avoid duplicating it in two places.
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Link: https://lore.kernel.org/r/20220623211420.918875-8-aidanmacdonald.0x0@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regmap-irq.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 7e93dd8af56b..5f9a5856c45e 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -73,6 +73,14 @@ struct regmap_irq *irq_to_regmap_irq(struct regmap_irq_chip_data *data, return &data->chip->irqs[irq]; } +static bool regmap_irq_can_bulk_read_status(struct regmap_irq_chip_data *data) +{ + struct regmap *map = data->map; + + return data->irq_reg_stride == 1 && map->reg_stride == 1 && + !map->use_single_read; +} + static void regmap_irq_lock(struct irq_data *data) { struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data); @@ -467,8 +475,7 @@ static irqreturn_t regmap_irq_thread(int irq, void *d) } } - } else if (!map->use_single_read && map->reg_stride == 1 && - data->irq_reg_stride == 1) { + } else if (regmap_irq_can_bulk_read_status(data)) { u8 *buf8 = data->status_reg_buf; u16 *buf16 = data->status_reg_buf; @@ -729,8 +736,7 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode, else d->irq_reg_stride = 1; - if (!map->use_single_read && map->reg_stride == 1 && - d->irq_reg_stride == 1) { + if (regmap_irq_can_bulk_read_status(d)) { d->status_reg_buf = kmalloc_array(chip->num_regs, map->format.val_bytes, GFP_KERNEL); |