Messages in this thread Patch in this message | | | From | Lad Prabhakar <> | Subject | [PATCH v3 3/5] gpio: gpiolib: Allow free() callback to be overridden | Date | Wed, 11 May 2022 19:32:08 +0100 |
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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@bp.renesas.com> --- drivers/gpio/gpiolib.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index b7694171655c..d36c4a965efc 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() functions 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) -- 2.25.1
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