diff options
| author | David Lin <dtwlin@google.com> | 2016-07-14 15:13:00 -0500 |
|---|---|---|
| committer | Alex Elder <elder@linaro.org> | 2016-07-14 16:53:55 -0500 |
| commit | 6ba7fad430d6300b966800bc5d2c782e2baf6f1d (patch) | |
| tree | 69966b93b1c1381c4b807e0d92eab27e4fc654af /drivers/staging/greybus/audio_apbridgea.c | |
| parent | 61e13db9cc8945d53f72d4021594ee3be214e667 (diff) | |
greybus: audio: add runtime pm support
Add runtime pm support to audio protocol device class driver.
Testing Done:
- Use white speaker module and check the interface is autosuspended when
it's idle and resumed when playback audio
Signed-off-by: David Lin <dtwlin@google.com>
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Reviewed-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Signed-off-by: Alex Elder <elder@linaro.org>
Diffstat (limited to 'drivers/staging/greybus/audio_apbridgea.c')
| -rw-r--r-- | drivers/staging/greybus/audio_apbridgea.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/staging/greybus/audio_apbridgea.c b/drivers/staging/greybus/audio_apbridgea.c index 361470788a76..45d3522789a8 100644 --- a/drivers/staging/greybus/audio_apbridgea.c +++ b/drivers/staging/greybus/audio_apbridgea.c @@ -33,12 +33,17 @@ int gb_audio_apbridgea_register_cport(struct gb_connection *connection, __u8 direction) { struct audio_apbridgea_register_cport_request req; + int ret; req.hdr.type = AUDIO_APBRIDGEA_TYPE_REGISTER_CPORT; req.hdr.i2s_port = cpu_to_le16(i2s_port); req.cport = cpu_to_le16(cportid); req.direction = direction; + ret = gb_pm_runtime_get_sync(connection->bundle); + if (ret) + return ret; + return gb_hd_output(connection->hd, &req, sizeof(req), GB_APB_REQUEST_AUDIO_CONTROL, true); } @@ -49,14 +54,19 @@ int gb_audio_apbridgea_unregister_cport(struct gb_connection *connection, __u8 direction) { struct audio_apbridgea_unregister_cport_request req; + int ret; req.hdr.type = AUDIO_APBRIDGEA_TYPE_UNREGISTER_CPORT; req.hdr.i2s_port = cpu_to_le16(i2s_port); req.cport = cpu_to_le16(cportid); req.direction = direction; - return gb_hd_output(connection->hd, &req, sizeof(req), - GB_APB_REQUEST_AUDIO_CONTROL, true); + ret = gb_hd_output(connection->hd, &req, sizeof(req), + GB_APB_REQUEST_AUDIO_CONTROL, true); + + gb_pm_runtime_put_autosuspend(connection->bundle); + + return ret; } EXPORT_SYMBOL_GPL(gb_audio_apbridgea_unregister_cport); |