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ASoC: dapm: Make enable/disable_pin work with always on widgets

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Always on widgets currently have some odd interactions with DAPM.
Enabling/disabling a widget (snd_soc_dapm_enable_pin) then connecting
it to a path works as expected, ie. when the widget is disabled the
path doesn't power up and it does when the widget is enabled. However
once in a path enabling the widget does not cause anything to power
up, dapm_widget_set_power will return the current power state of the
widget as 1, meaning we never check peer power states.

This patch updates dapm_always_on_check_power to return w->connected
such that it is effected by snd_soc_dapm_enable_pin and the like.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2015-12-02 10:22:16 +00:00 committed by Mark Brown
parent f299eccc0f
commit 20bb0184f2
1 changed files with 1 additions and 1 deletions
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2
sound/soc/soc-dapm.c
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@ -1300,7 +1300,7 @@ static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w)
{
return 1;
return w->connected;
}
static int dapm_seq_compare(struct snd_soc_dapm_widget *a,