ALSA: hda - set GET bit when adding a vendor verb to the codec regmap

Some HD-A codecs may add their own vendor 'set' verb to the regmap, thru func snd_hdac_add_vendor_verb(). This patch sets the GET bit (bit 11) when adding the verb so that its peer vendor 'get' verb is actually added. This can avoid I/O error when writing the 'set' verb thru remap, since HD-A regmap internally looks up a writable vendor verb with GET bit set at first. Signed-off-by: Mengdong Lin <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
vbatts · Apr 14, 2015 · d6eb9e3 · d6eb9e3
1 parent ce4524e
commit d6eb9e3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/sound/hda/hdac_regmap.c b/sound/hda/hdac_regmap.c
@@ -368,7 +368,7 @@ int snd_hdac_regmap_add_vendor_verb(struct hdac_device *codec,
 
 	if (!p)
 		return -ENOMEM;
-	*p = verb;
+	*p = verb | 0x800; /* set GET bit */
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_hdac_regmap_add_vendor_verb);