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authorLinus Walleij <linus.walleij@linaro.org>2022-05-05 16:50:14 +0200
committerLinus Walleij <linus.walleij@linaro.org>2022-05-05 16:50:14 +0200
commit160625856d324c27888ccbbe7693475b2706bd3b (patch)
treeef7218f7a96944e951b121ea865e55c0c5e38e67 /include
parentf4b09d8d67efcc0620a9395b7a180bbd44066939 (diff)
parent5644b66a9c63c3cadc6ba85faf5a15604e6cf29a (diff)
Merge branch 'irq/gpio-immutable' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into devel
Diffstat (limited to 'include')
-rw-r--r--include/linux/gpio/driver.h16
-rw-r--r--include/linux/irq.h2
2 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index f06236b2a34b..baf022068b23 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -601,6 +601,22 @@ void gpiochip_relres_irq(struct gpio_chip *gc, unsigned int offset);
void gpiochip_disable_irq(struct gpio_chip *gc, unsigned int offset);
void gpiochip_enable_irq(struct gpio_chip *gc, unsigned int offset);
+/* irq_data versions of the above */
+int gpiochip_irq_reqres(struct irq_data *data);
+void gpiochip_irq_relres(struct irq_data *data);
+
+/* Paste this in your irq_chip structure */
+#define GPIOCHIP_IRQ_RESOURCE_HELPERS \
+ .irq_request_resources = gpiochip_irq_reqres, \
+ .irq_release_resources = gpiochip_irq_relres
+
+static inline void gpio_irq_chip_set_chip(struct gpio_irq_chip *girq,
+ const struct irq_chip *chip)
+{
+ /* Yes, dropping const is ugly, but it isn't like we have a choice */
+ girq->chip = (struct irq_chip *)chip;
+}
+
/* Line status inquiry for drivers */
bool gpiochip_line_is_open_drain(struct gpio_chip *gc, unsigned int offset);
bool gpiochip_line_is_open_source(struct gpio_chip *gc, unsigned int offset);
diff --git a/include/linux/irq.h b/include/linux/irq.h
index f92788ccdba2..505308253d23 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -569,6 +569,7 @@ struct irq_chip {
* IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND: Invokes __enable_irq()/__disable_irq() for wake irqs
* in the suspend path if they are in disabled state
* IRQCHIP_AFFINITY_PRE_STARTUP: Default affinity update before startup
+ * IRQCHIP_IMMUTABLE: Don't ever change anything in this chip
*/
enum {
IRQCHIP_SET_TYPE_MASKED = (1 << 0),
@@ -582,6 +583,7 @@ enum {
IRQCHIP_SUPPORTS_NMI = (1 << 8),
IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND = (1 << 9),
IRQCHIP_AFFINITY_PRE_STARTUP = (1 << 10),
+ IRQCHIP_IMMUTABLE = (1 << 11),
};
#include <linux/irqdesc.h>