diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2009-01-15 18:21:48 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-01-15 18:28:12 +0100 |
| commit | 45e513b689b8b0a01ec2b01cc21816e4780d7ea6 (patch) | |
| tree | 1c1b4657bf2065b076f08b98ff817e4a629a9c81 /sound/aoa/soundbus | |
| parent | 37a76bd4f1b716949fc38a6842e89f0ccb8384d0 (diff) | |
| download | linux-45e513b689b8b0a01ec2b01cc21816e4780d7ea6.tar.bz2 | |
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.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c index be468edf3ecb..418c84c99d69 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 |