diff options
| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2016-09-20 15:52:31 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-09-24 21:34:26 +0300 |
| commit | 5ca7e170e331781fe71acb4919667993bb9fbab6 (patch) | |
| tree | 7f706d11b16611b68dcc298aa3c88d3c6d215f4a /sound/soc/codecs/wm_adsp.h | |
| parent | 3577357a1680543b8acb98d69d23e87c1175db2b (diff) | |
| download | linux-5ca7e170e331781fe71acb4919667993bb9fbab6.tar.xz | |
ASoC: wm_adsp: Make DSP preloader a supply widget
Currently the DSP loading is split into two widgets, the preloader that
is a snd_soc_dapm_dai_link widget which starts a thread to download
the firmware, and the DSP itself which is a snd_soc_dapm_out_drv and
synchronises the thread back in to the DAPM sequence. This allows the
firmware download to be overlapped with the rest of the path bring up.
The use of a snd_soc_dapm_dai_link widget requires the preloader to be part
of the audio path in DAPM, really a supply widget is a better fit for the
preloader. The preloader is something that needs to be done for the DSP to
function, not a part of the audio path itself.
This change makes the DSP preloader widget a supply widget, which as well
as probably being a better fit will also make it much simpler to power up
the preloader widget to trigger firmware download to the core independently
of the audio path coming up.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/wm_adsp.h')
| -rw-r--r-- | sound/soc/codecs/wm_adsp.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sound/soc/codecs/wm_adsp.h b/sound/soc/codecs/wm_adsp.h index 6a054e744068..228b1f9e9a68 100644 --- a/sound/soc/codecs/wm_adsp.h +++ b/sound/soc/codecs/wm_adsp.h @@ -87,9 +87,10 @@ struct wm_adsp { wm_adsp1_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD) #define WM_ADSP2(wname, num, event_fn) \ -{ .id = snd_soc_dapm_dai_link, .name = wname " Preloader", \ +{ .id = snd_soc_dapm_supply, .name = wname " Preloader", \ .reg = SND_SOC_NOPM, .shift = num, .event = event_fn, \ - .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD }, \ + .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD, \ + .subseq = 100, /* Ensure we run after SYSCLK supply widget */ }, \ { .id = snd_soc_dapm_out_drv, .name = wname, \ .reg = SND_SOC_NOPM, .shift = num, .event = wm_adsp2_event, \ .event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD } |