From: "Dharageswari.R" dharageswari.r@intel.com
Per HW recommendation, SW shall clear the CGCTL.MISCBDCGE and set it back once data is transferred. So clear this when we get the IPC and track using a driver flag, and set back on closure
Signed-off-by: Dharageswari.R dharageswari.r@intel.com Signed-off-by: Jayachandran B jayachandran.b@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl-pcm.c | 13 +++++++++++++ sound/soc/intel/skylake/skl-sst-ipc.c | 14 ++++++++++++++ sound/soc/intel/skylake/skl-sst-ipc.h | 3 +++ 3 files changed, 30 insertions(+)
diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c index b89ae6f7c096..95fd2210bd86 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -25,6 +25,8 @@ #include <sound/soc.h> #include "skl.h" #include "skl-topology.h" +#include "skl-sst-dsp.h" +#include "skl-sst-ipc.h"
#define HDA_MONO 1 #define HDA_STEREO 2 @@ -272,6 +274,7 @@ static void skl_pcm_close(struct snd_pcm_substream *substream, struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct skl_dma_params *dma_params = NULL; + struct skl *skl = ebus_to_skl(ebus);
dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
@@ -285,6 +288,16 @@ static void skl_pcm_close(struct snd_pcm_substream *substream, snd_soc_dai_set_dma_data(dai, substream, NULL); skl_set_suspend_active(substream, dai, false);
+ /* + * check if close is for "Reference Pin" and set back the + * CGCTL.MISCBDCGE if disabled by driver + */ + if (!strncmp(dai->name, "Reference Pin", 13) && + skl->skl_sst->miscbdcg_disabled) { + snd_hdac_ext_bus_enable_miscbdcge(dai->dev, true); + skl->skl_sst->miscbdcg_disabled = false; + } + kfree(dma_params); }
diff --git a/sound/soc/intel/skylake/skl-sst-ipc.c b/sound/soc/intel/skylake/skl-sst-ipc.c index 62e665a3b8f7..d02e6ac0a81c 100644 --- a/sound/soc/intel/skylake/skl-sst-ipc.c +++ b/sound/soc/intel/skylake/skl-sst-ipc.c @@ -18,6 +18,7 @@ #include "../common/sst-dsp-priv.h" #include "skl-sst-dsp.h" #include "skl-sst-ipc.h" +#include "sound/hdaudio_ext.h"
#define IPC_IXC_STATUS_BITS 24 @@ -322,6 +323,19 @@ static int skl_ipc_process_notification(struct sst_generic_ipc *ipc, wake_up(&skl->boot_wait); break;
+ case IPC_GLB_NOTIFY_PHRASE_DETECTED: + dev_dbg(ipc->dev, "***** Phrase Detected **********\n"); + + /* + * Per HW recomendation, After phrase detection, + * clear the CGCTL.MISCBDCGE. + * + * This will be set back on stream closure + */ + snd_hdac_ext_bus_enable_miscbdcge(ipc->dev, false); + skl->miscbdcg_disabled = true; + break; + default: dev_err(ipc->dev, "ipc: Unhandled error msg=%x", header.primary); diff --git a/sound/soc/intel/skylake/skl-sst-ipc.h b/sound/soc/intel/skylake/skl-sst-ipc.h index 1bbcdb471cf2..e4ac5e65c92c 100644 --- a/sound/soc/intel/skylake/skl-sst-ipc.h +++ b/sound/soc/intel/skylake/skl-sst-ipc.h @@ -55,6 +55,9 @@ struct skl_sst {
/* IPC messaging */ struct sst_generic_ipc ipc; + + /*Is CGCTL.MISCBDCGE disabled*/ + bool miscbdcg_disabled; };
struct skl_ipc_init_instance_msg {