[bug 1080] [PATCH] 2.6.0-t3: alsa driver snd-powermac doesn't work with tumbler chip on ibook2

From: Francesco Sportolari
Date: Sun Aug 17 2003 - 14:57:38 EST


During the insmod of the snd-powermac module this msg is printed to the
console:

tumbler: cannot initialize the MCS

After that, even if the module is loaded correctly, the sound doesn't work at
all.

I've noticed that removing and inserting again the 'i2c-keywest' module solves
the problem. The following patch fixes this issue related to early
initialization of the i2c client in the driver.

Bye,
-- Francesco

--- orig/sound/ppc/tumbler.c 2003-08-16 17:18:35.000000000 +0200
+++ linux-2.6.0-test3/sound/ppc/tumbler.c 2003-08-16 17:18:55.000000000
+0200
@@ -996,9 +996,6 @@
chipname = "Snapper";
}

- if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
- return err;
-
/*
* build mixers
*/
@@ -1025,6 +1022,9 @@
if ((err = tumbler_init(chip)) < 0)
return err;

+ if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
+ return err;
+
#ifdef CONFIG_PMAC_PBOOK
chip->resume = tumbler_resume;
#endif


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