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authorColin Leroy <colin@colino.net>2005-05-01 08:58:43 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-01 08:58:43 -0700
commit085e6fc96bcf239cab8adc600aab2452d75590b1 (patch)
treeb02b932789402ab96ded653395207cd19d34c2f2 /sound
parent1f7b49d042abfbda71f41b8aff6e1bf7685c1f00 (diff)
[PATCH] pmac: save master volume on sleep
Ben's patch that shutdowns master switch and restores it after resume ("pmac: Improve sleep code of tumbler driver") isn't enough here on an iBook (snapper chip). The master switch is correctly saved and restored, but somehow tumbler_put_master_volume() gets called just after tumbler_set_master_volume() and sets mix->master_vol[*] to 0. So, on resuming, the master switch is reenabled, but the volume is set to 0. Here's a patch that also saves and restores master_vol. Signed-off-by: Colin Leroy <colin@colino.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/ppc/tumbler.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c
index f3e010793a6a..9332237cb6a4 100644
--- a/sound/ppc/tumbler.c
+++ b/sound/ppc/tumbler.c
@@ -99,6 +99,7 @@ typedef struct pmac_tumbler_t {
pmac_gpio_t hp_detect;
int headphone_irq;
int lineout_irq;
+ unsigned int save_master_vol[2];
unsigned int master_vol[2];
unsigned int save_master_switch[2];
unsigned int master_switch[2];
@@ -1139,6 +1140,8 @@ static void tumbler_suspend(pmac_t *chip)
disable_irq(mix->lineout_irq);
mix->save_master_switch[0] = mix->master_switch[0];
mix->save_master_switch[1] = mix->master_switch[1];
+ mix->save_master_vol[0] = mix->master_vol[0];
+ mix->save_master_vol[1] = mix->master_vol[1];
mix->master_switch[0] = mix->master_switch[1] = 0;
tumbler_set_master_volume(mix);
if (!mix->anded_reset) {
@@ -1166,6 +1169,8 @@ static void tumbler_resume(pmac_t *chip)
mix->acs &= ~1;
mix->master_switch[0] = mix->save_master_switch[0];
mix->master_switch[1] = mix->save_master_switch[1];
+ mix->master_vol[0] = mix->save_master_vol[0];
+ mix->master_vol[1] = mix->save_master_vol[1];
tumbler_reset_audio(chip);
if (mix->i2c.client && mix->i2c.init_client) {
if (mix->i2c.init_client(&mix->i2c) < 0)

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