The whole point of supply widgets is that they aren't inputs to their sinks so a state change in a supply should never affect the state of the widget being supplied and we don't need to mark them as dirty.
Power Path Neighbour Before: 69 727 905 After: 63 607 731
This is particularly useful where supplies affect large portions of the chip (eg, a bandgap supplying the analogue sections).
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/soc-dapm.c | 15 +++++++++++---- 1 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index c39146d..cbca1dd 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -1260,11 +1260,18 @@ static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, path->connect); } } - list_for_each_entry(path, &w->sinks, list_source) { - if (path->sink) { - dapm_widget_set_peer_power(path->sink, power, - path->connect); + switch (w->id) { + case snd_soc_dapm_supply: + /* Supplies can't affect their outputs, only their inputs */ + break; + default: + list_for_each_entry(path, &w->sinks, list_source) { + if (path->sink) { + dapm_widget_set_peer_power(path->sink, power, + path->connect); + } } + break; }
if (power)