Merge tag 'regmap-irq-reqrel' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into gpio/for-next

regmap-irq: Provide IRQ resource request and release callbacks

The users which rely on regmap IRQ to create the IRQ chip may also
want to have an additional tracking of the IRQ requests and releases.
Provide a callback for them.

2 files changed, 24 insertions, 0 deletions

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 07234d415b51..99b55b1053ee 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -296,6 +296,26 @@ static int regmap_irq_set_wake(struct irq_data *data, unsigned int on)
 	return 0;
 }
 
+static int regmap_irq_reqres(struct irq_data *data)
+{
+	struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
+	irq_hw_number_t hwirq = irqd_to_hwirq(data);
+
+	if (d->chip->irq_reqres)
+		return d->chip->irq_reqres(d->chip->irq_drv_data, hwirq);
+
+	return 0;
+}
+
+static void regmap_irq_relres(struct irq_data *data)
+{
+	struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
+	irq_hw_number_t hwirq = irqd_to_hwirq(data);
+
+	if (d->chip->irq_relres)
+		d->chip->irq_relres(d->chip->irq_drv_data, hwirq);
+}
+
 static const struct irq_chip regmap_irq_chip = {
 	.irq_bus_lock		= regmap_irq_lock,
 	.irq_bus_sync_unlock	= regmap_irq_sync_unlock,
@@ -303,6 +323,8 @@ static const struct irq_chip regmap_irq_chip = {
 	.irq_enable		= regmap_irq_enable,
 	.irq_set_type		= regmap_irq_set_type,
 	.irq_set_wake		= regmap_irq_set_wake,
+	.irq_request_resources  = regmap_irq_reqres,
+	.irq_release_resources  = regmap_irq_relres,
 };
 
 static inline int read_sub_irq_data(struct regmap_irq_chip_data *data,
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index df44cb30f53b..370baa19db87 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -1770,6 +1770,8 @@ struct regmap_irq_chip {
 			       void *irq_drv_data);
 	unsigned int (*get_irq_reg)(struct regmap_irq_chip_data *data,
 				    unsigned int base, int index);
+	int (*irq_reqres)(void *irq_drv_data, irq_hw_number_t hwirq);
+	void (*irq_relres)(void *irq_drv_data, irq_hw_number_t hwirq);
 	void *irq_drv_data;
 };