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authorJohannes Berg <johannes@sipsolutions.net>2009-01-15 18:21:48 +0100
committerTakashi Iwai <tiwai@suse.de>2009-01-15 18:28:12 +0100
commit45e513b689b8b0a01ec2b01cc21816e4780d7ea6 (patch)
tree1c1b4657bf2065b076f08b98ff817e4a629a9c81 /sound/aoa/soundbus
parent37a76bd4f1b716949fc38a6842e89f0ccb8384d0 (diff)
downloadlinaro-lsk-45e513b689b8b0a01ec2b01cc21816e4780d7ea6.tar.gz
ALSA: snd-aoa: handle older machines
This patch changes snd-aoa to handle some older machines that are currently handled by snd-powermac. snd-aoa has a number of advantages though, notably it can autoload better and is generally a more modern driver. By hardcoding the accepted device-ids (last hunk of the patch) I'm trying to avoid regressions because this driver will otherwise load automatically and not let snd-powermac load. People who are unhappy with snd-powermac and have a device-id property in the device tree are encouraged to read this patch and make a patch to amend this as appropriate. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/aoa/soundbus')
-rw-r--r--sound/aoa/soundbus/i2sbus/core.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c
index be468edf3ec..418c84c99d6 100644
--- a/sound/aoa/soundbus/i2sbus/core.c
+++ b/sound/aoa/soundbus/i2sbus/core.c
@@ -1,7 +1,7 @@
/*
* i2sbus driver
*
- * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006-2008 Johannes Berg <johannes@sipsolutions.net>
*
* GPL v2, can be found in COPYING.
*/
@@ -186,13 +186,25 @@ static int i2sbus_add_dev(struct macio_dev *macio,
}
}
if (i == 1) {
- const u32 *layout_id =
- of_get_property(sound, "layout-id", NULL);
- if (layout_id) {
- layout = *layout_id;
+ const u32 *id = of_get_property(sound, "layout-id", NULL);
+
+ if (id) {
+ layout = *id;
snprintf(dev->sound.modalias, 32,
"sound-layout-%d", layout);
ok = 1;
+ } else {
+ id = of_get_property(sound, "device-id", NULL);
+ /*
+ * We probably cannot handle all device-id machines,
+ * so restrict to those we do handle for now.
+ */
+ if (id && (*id == 22 || *id == 14 || *id == 35)) {
+ snprintf(dev->sound.modalias, 32,
+ "aoa-device-id-%d", *id);
+ ok = 1;
+ layout = -1;
+ }
}
}
/* for the time being, until we can handle non-layout-id