ALSA: HDMI - Fix channel_allocation array wrong order
The array channel_allocations[] is an ordered list, add function to get
correct order by ca_index.
Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index afd6850..4fb8199 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -469,6 +469,17 @@
}
}
+static int get_channel_allocation_order(int ca)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
+ if (channel_allocations[i].ca_index == ca)
+ break;
+ }
+ return i;
+}
+
/*
* The transformation takes two steps:
*
@@ -541,9 +552,11 @@
{
int i;
int err;
+ int order;
+ order = get_channel_allocation_order(ca);
if (hdmi_channel_mapping[ca][1] == 0) {
- for (i = 0; i < channel_allocations[ca].channels; i++)
+ for (i = 0; i < channel_allocations[order].channels; i++)
hdmi_channel_mapping[ca][i] = i | (i << 4);
for (; i < 8; i++)
hdmi_channel_mapping[ca][i] = 0xf | (i << 4);