Hi Linus, On Thu, Mar 17, 2022 at 1:24 AM Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> wrote: > > Allow free() callback to be overridden from irq_domain_ops for > hierarchical chips. > > This allows drivers to free any resources which are allocated during > populate_parent_alloc_arg(). > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> > --- > drivers/gpio/gpiolib.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-) > Sorry to ping early, this patch and 4/5 hasn't been reviewed at all in previous versions. So I wanted to get your feedback before I post an non -RFC version of the series. Cheers, Prabhakar > diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c > index defb7c464b87..aede442f610d 100644 > --- a/drivers/gpio/gpiolib.c > +++ b/drivers/gpio/gpiolib.c > @@ -1187,15 +1187,18 @@ static void gpiochip_hierarchy_setup_domain_ops(struct irq_domain_ops *ops) > ops->activate = gpiochip_irq_domain_activate; > ops->deactivate = gpiochip_irq_domain_deactivate; > ops->alloc = gpiochip_hierarchy_irq_domain_alloc; > - ops->free = irq_domain_free_irqs_common; > > /* > - * We only allow overriding the translate() function for > + * We only allow overriding the translate() and free() function for > * hierarchical chips, and this should only be done if the user > - * really need something other than 1:1 translation. > + * really need something other than 1:1 translation for translate() > + * callback and free if user wants to free up any resources which > + * were allocated during callbacks for example populate_parent_alloc_arg. > */ > if (!ops->translate) > ops->translate = gpiochip_hierarchy_irq_domain_translate; > + if (!ops->free) > + ops->free = irq_domain_free_irqs_common; > } > > static int gpiochip_hierarchy_add_domain(struct gpio_chip *gc) > -- > 2.17.1 >
