regmap: irq: Only update mask bits when doing initial mask



Don't write the full register, it's possible there's bits other than the
masks in the same register which we shouldn't be changing.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>

parent 16032624

drivers/base/regmap/regmap-irq.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -306,7 +306,8 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
		d->mask_buf[i] = d->mask_buf_def[i];
		reg = chip->mask_base +
		(i * map->reg_stride * d->irq_reg_stride);
		ret = regmap_write(map, reg, d->mask_buf[i]);
		ret = regmap_update_bits(map, reg,
		d->mask_buf[i], d->mask_buf[i]);
		if (ret != 0) {
		dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
		reg, ret);