regmap-irq: Remove unused mask_invert flag

mask_invert is deprecated and no longer used; it can now be removed.
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Link: https://lore.kernel.org/r/20230216223200.150679-2-aidanmacdonald.0x0@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/base/regmap/regmap-irq.c

@@ -878,20 +878,6 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
 		 */
 		dev_warn(map->dev, "mask_base and unmask_base are inverted, please fix it");
 
-		/* Might as well warn about mask_invert while we're at it... */
-		if (chip->mask_invert)
-			dev_warn(map->dev, "mask_invert=true ignored");
-
-		d->mask_base = chip->unmask_base;
-		d->unmask_base = chip->mask_base;
-	} else if (chip->mask_invert) {
-		/*
-		 * Swap the roles of mask_base and unmask_base if the bits are
-		 * inverted. This is deprecated, drivers should use unmask_base
-		 * directly.
-		 */
-		dev_warn(map->dev, "mask_invert=true is deprecated; please switch to unmask_base");
-
 		d->mask_base = chip->unmask_base;
 		d->unmask_base = chip->mask_base;
 	} else {

include/linux/regmap.h

@@ -1540,9 +1540,6 @@ struct regmap_irq_chip_data;
  * @config_base: Base address for IRQ type config regs. If null unsupported.
  * @irq_reg_stride:  Stride to use for chips where registers are not contiguous.
  * @init_ack_masked: Ack all masked interrupts once during initalization.
- * @mask_invert: Inverted mask register: cleared bits are masked out.
- *		 Deprecated; prefer describing an inverted mask register as
- *		 an unmask register.
  * @mask_unmask_non_inverted: Controls mask bit inversion for chips that set
  *	both @mask_base and @unmask_base. If false, mask and unmask bits are
  *	inverted (which is deprecated behavior); if true, bits will not be
@@ -1624,7 +1621,6 @@ struct regmap_irq_chip {
 	const unsigned int *config_base;
 	unsigned int irq_reg_stride;
 	unsigned int init_ack_masked:1;
-	unsigned int mask_invert:1;
 	unsigned int mask_unmask_non_inverted:1;
 	unsigned int use_ack:1;
 	unsigned int ack_invert:1;