Unverified Commit 3d521f9f authored by Shenghao Ding's avatar Shenghao Ding Committed by Mark Brown
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ASoC: tas2781: fixed register access error when switching to other chips 



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

Signed-off-by: default avatarShenghao Ding <shenghao-ding@ti.com>
Link: https://lore.kernel.org/r/20230817093257.951-1-shenghao-ding@ti.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2d218b45

sound/soc/codecs/tas2781-comlib.c

+10 −9
Original line number Diff line number Diff line
@@ -57,17 +57,18 @@ 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);

			/* 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) {

			ret = regmap_write(map, TASDEVICE_BOOKCTL_REG, book);