[PATCH] ASoC: codecs: add missing max_register in regmap config

[Srinivas Kandagatla]

For some reason setting max_register was missed from regmap_config.
Without this cat /sys/kernel/debug/regmap/sdw:0:217:2010:0:1/range
actually throws below Warning.

WARNING: CPU: 7 PID: 540 at drivers/base/regmap/regmap-debugfs.c:160
 regmap_debugfs_get_dump_start.part.10+0x1e0/0x220
...
Call trace:
 regmap_debugfs_get_dump_start.part.10+0x1e0/0x220
 regmap_reg_ranges_read_file+0xc0/0x2e0
 full_proxy_read+0x64/0x98
 vfs_read+0xa8/0x1e0
 ksys_read+0x6c/0x100
 __arm64_sys_read+0x1c/0x28
 el0_svc_common.constprop.3+0x6c/0x190
 do_el0_svc+0x24/0x90
 el0_svc+0x14/0x20
 el0_sync_handler+0x90/0xb8
 el0_sync+0x158/0x180
...

Fixes: a0aab9e1404a ("ASoC: codecs: add wsa881x amplifier support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
---
 sound/soc/codecs/wsa881x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/wsa881x.c b/sound/soc/codecs/wsa881x.c
index 4530b74f5921..db87e07b11c9 100644
--- a/sound/soc/codecs/wsa881x.c
+++ b/sound/soc/codecs/wsa881x.c
@@ -640,6 +640,7 @@ static struct regmap_config wsa881x_regmap_config = {
 	.val_bits = 8,
 	.cache_type = REGCACHE_RBTREE,
 	.reg_defaults = wsa881x_defaults,
+	.max_register = WSA881X_SPKR_STATUS3,
 	.num_reg_defaults = ARRAY_SIZE(wsa881x_defaults),
 	.volatile_reg = wsa881x_volatile_register,
 	.readable_reg = wsa881x_readable_register,
-- 
2.21.0