Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Unverified Commit 7151449f authored by Mark Zhang's avatar Mark Zhang Committed by Mark Brown
Browse files

regmap-irq: do not write mask register if mask_base is zero 



If client have not provided the mask base register then do not
write into the mask register.

Signed-off-by: default avatarLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: default avatarJinyoung Park <jinyoungp@nvidia.com>
Signed-off-by: default avatarVenkat Reddy Talla <vreddytalla@nvidia.com>
Signed-off-by: default avatarMark Zhang <markz@nvidia.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 1cd82436

drivers/base/regmap/regmap-irq.c

+6 −0
Original line number Diff line number Diff line
@@ -108,6 +108,9 @@ static void regmap_irq_sync_unlock(struct irq_data *data) 
	 * suppress pointless writes.

	 */

	for (i = 0; i < d->chip->num_regs; i++) {

		if (!d->chip->mask_base)

			continue;



		reg = d->chip->mask_base +

			(i * map->reg_stride * d->irq_reg_stride);

		if (d->chip->mask_invert) {
@@ -588,6 +591,9 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, 
	/* Mask all the interrupts by default */

	for (i = 0; i < chip->num_regs; i++) {

		d->mask_buf[i] = d->mask_buf_def[i];

		if (!chip->mask_base)

			continue;



		reg = chip->mask_base +

			(i * map->reg_stride * d->irq_reg_stride);

		if (chip->mask_invert)