[PATCH AUTOSEL 5.10 03/25] ASoC: wm_adsp: Fix control name parsing for multi-fw

[Sasha Levin]

From: James Schulman <james.schulman@xxxxxxxxxx>

[ Upstream commit a8939f2e138e418c2b059056ff5b501eaf2eae54 ]

When switching between firmware types, the wrong control
can be selected when requesting control in kernel API.
Use the currently selected DSP firwmare type to select
the proper mixer control.

Signed-off-by: James Schulman <james.schulman@xxxxxxxxxx>
Acked-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210115201105.14075-1-james.schulman@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 sound/soc/codecs/wm_adsp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index dec8716aa8ef5..985b2dcecf138 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -2031,11 +2031,14 @@ static struct wm_coeff_ctl *wm_adsp_get_ctl(struct wm_adsp *dsp,
 					     unsigned int alg)
 {
 	struct wm_coeff_ctl *pos, *rslt = NULL;
+	const char *fw_txt = wm_adsp_fw_text[dsp->fw];
 
 	list_for_each_entry(pos, &dsp->ctl_list, list) {
 		if (!pos->subname)
 			continue;
 		if (strncmp(pos->subname, name, pos->subname_len) == 0 &&
+		    strncmp(pos->fw_name, fw_txt,
+			    SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0 &&
 				pos->alg_region.alg == alg &&
 				pos->alg_region.type == type) {
 			rslt = pos;
-- 
2.27.0