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authorMengdong Lin <mengdong.lin@intel.com>2015-04-14 11:25:36 +0800
committerTakashi Iwai <tiwai@suse.de>2015-04-14 07:25:42 +0200
commitd6eb9e3ec78c98324097bab8eea266c3bb0d0ac7 (patch)
tree852e698819412eb39fb79d2e15832c3c367517a2 /sound/hda
parentce4524e5a78123fbf2db5b1549798c91a6d98294 (diff)
downloadlinux-d6eb9e3ec78c98324097bab8eea266c3bb0d0ac7.tar.bz2
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 <mengdong.lin@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/hda')
-rw-r--r--sound/hda/hdac_regmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/hda/hdac_regmap.c b/sound/hda/hdac_regmap.c
index 51f1b5c8a91c..7371e0c3926f 100644
--- 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);