diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2016-02-09 17:58:22 +0530 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-04-04 13:46:57 +0200 |
| commit | 3daf6069c7afd5bdb4f7df49edb17069a53e1755 (patch) | |
| tree | 7a0ca095d9e9ba0609d44bb5b8f167c3ed8d9218 | |
| parent | 8d419d1af84e86216c48285b6a3830ce9d049792 (diff) | |
regmap: irq: dispose all virtual irq before removing domain
It is require to dispose all virtual irq of hwirq on chip
created on given irq domain before removing this irq domain.
Hence dispose all mapped irqs before deleting the irq domains
in regmap_del_irq_chip();
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/base/regmap/regmap-irq.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 2b38cfd44a5d..879838efcd7d 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -621,13 +621,34 @@ EXPORT_SYMBOL_GPL(regmap_add_irq_chip); * * @irq: Primary IRQ for the device * @d: regmap_irq_chip_data allocated by regmap_add_irq_chip() + * + * This function also dispose all mapped irq on chip. */ void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *d) { + unsigned int virq; + int hwirq; + if (!d) return; free_irq(irq, d); + + /* Dispose all virtual irq from irq domain before removing it */ + for (hwirq = 0; hwirq < d->chip->num_irqs; hwirq++) { + /* Ignore hwirq if holes in the IRQ list */ + if (!d->chip->irqs[hwirq].mask) + continue; + + /* + * Find the virtual irq of hwirq on chip and if it is + * there then dispose it + */ + virq = irq_find_mapping(d->domain, hwirq); + if (virq) + irq_dispose_mapping(virq); + } + irq_domain_remove(d->domain); kfree(d->type_buf); kfree(d->type_buf_def); |