fixed register access error when switching to other tas2781 -- refresh the page inside regmap on the switched tas2781

Signed-off-by: Shenghao Ding shenghao-ding@ti.com

--- Changes in v1: - fixed register access error when switching to other tas2781 --- sound/soc/codecs/tas2781-comlib.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/tas2781-comlib.c b/sound/soc/codecs/tas2781-comlib.c index a88c6c28a394..ffb26e4a7e2f 100644 --- a/sound/soc/codecs/tas2781-comlib.c +++ b/sound/soc/codecs/tas2781-comlib.c @@ -57,16 +57,17 @@ static int tasdevice_change_chn_book(struct tasdevice_priv *tas_priv,

if (client->addr != tasdev->dev_addr) { client->addr = tasdev->dev_addr; - if (tasdev->cur_book == book) { - ret = regmap_write(map, - TASDEVICE_PAGE_SELECT, 0); - if (ret < 0) { - dev_err(tas_priv->dev, "%s, E=%d\n", - __func__, ret); - goto out; - } + /* All tas2781s share the same regmap, clear the page + * inside regmap once switching to another tas2781. + * Register 0 at any pages and any books inside tas2781 + * is the same one for page-switching. + */ + ret = regmap_write(map, TASDEVICE_PAGE_SELECT, 0); + if (ret < 0) { + dev_err(tas_priv->dev, "%s, E=%d\n", + __func__, ret); + goto out; } - goto out; }

if (tasdev->cur_book != book) {