intel_sst: MSIC codec power optimisation

This patch adds power optimization for the msic codec and ensure
codec is completely powered off when codec is idle.
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Ramesh Babu K V <ramesh.babu@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/intel_sst/intel_sst.h

@@ -103,8 +103,8 @@ struct snd_pmic_ops {
 
 	int (*power_up_pmic_pb) (unsigned int port);
 	int (*power_up_pmic_cp) (unsigned int port);
-	int (*power_down_pmic_pb) (void);
-	int (*power_down_pmic_cp) (void);
+	int (*power_down_pmic_pb) (unsigned int device);
+	int (*power_down_pmic_cp) (unsigned int device);
 	int (*power_down_pmic) (void);
 };
 

drivers/staging/intel_sst/intel_sst_drv_interface.c

@@ -105,21 +105,23 @@ void free_stream_context(unsigned int str_id)
 	if (!sst_validate_strid(str_id)) {
 		/* str_id is valid, so stream is alloacted */
 		stream = &sst_drv_ctx->streams[str_id];
+		if (sst_free_stream(str_id))
+			sst_clean_stream(&sst_drv_ctx->streams[str_id]);
 		if (stream->ops == STREAM_OPS_PLAYBACK ||
 				stream->ops == STREAM_OPS_PLAYBACK_DRM) {
 			sst_drv_ctx->pb_streams--;
 			if (sst_drv_ctx->pb_streams == 0)
-				sst_drv_ctx->scard_ops->power_down_pmic_pb();
+				sst_drv_ctx->scard_ops->power_down_pmic_pb(
+						stream->device);
 		} else if (stream->ops == STREAM_OPS_CAPTURE) {
 			sst_drv_ctx->cp_streams--;
 			if (sst_drv_ctx->cp_streams == 0)
-				sst_drv_ctx->scard_ops->power_down_pmic_cp();
+				sst_drv_ctx->scard_ops->power_down_pmic_cp(
+						stream->device);
 		}
 		if (sst_drv_ctx->pb_streams == 0
 				&& sst_drv_ctx->cp_streams == 0)
 			sst_drv_ctx->scard_ops->power_down_pmic();
-		if (sst_free_stream(str_id))
-			sst_clean_stream(&sst_drv_ctx->streams[str_id]);
 	}
 }
 

drivers/staging/intel_sst/intelmid_v0_control.c

@@ -157,7 +157,7 @@ static int fs_power_up_pb(unsigned int port)
 	return fs_enable_audiodac(UNMUTE);
 }
 
-static int fs_power_down_pb(void)
+static int fs_power_down_pb(unsigned int device)
 {
 	struct sc_reg_access sc_access[] = {
 		{POWERCTRL1, 0x00, 0xC6},
@@ -195,7 +195,7 @@ static int fs_power_up_cp(unsigned int port)
 	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
 }
 
-static int fs_power_down_cp(void)
+static int fs_power_down_cp(unsigned int device)
 {
 	struct sc_reg_access sc_access[] = {
 		{POWERCTRL2, 0x00, 0x03},

drivers/staging/intel_sst/intelmid_v1_control.c

@@ -211,7 +211,7 @@ static int mx_power_up_pb(unsigned int port)
 	return mx_enable_audiodac(UNMUTE);
 }
 
-static int mx_power_down_pb(void)
+static int mx_power_down_pb(unsigned int device)
 {
 	struct sc_reg_access sc_access[3];
 	int retval = 0;
@@ -254,7 +254,7 @@ static int mx_power_up_cp(unsigned int port)
 	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
 }
 
-static int mx_power_down_cp(void)
+static int mx_power_down_cp(unsigned int device)
 {
 	struct sc_reg_access sc_access[] = {
 		{ENABLE_OPDEV_CTRL, 0x00, MASK1|MASK0},

drivers/staging/intel_sst/intelmid_v2_control.c

@@ -315,7 +315,7 @@ static int nc_power_down(void)
 	return nc_enable_audiodac(UNMUTE);
 }
 
-static int nc_power_down_pb(void)
+static int nc_power_down_pb(unsigned int device)
 {
 
 	int retval = 0;
@@ -359,7 +359,7 @@ static int nc_power_down_pb(void)
 
 }
 
-static int nc_power_down_cp(void)
+static int nc_power_down_cp(unsigned int device)
 {
 	struct sc_reg_access sc_access[] = {
 		{POWERCTRL1, 0x00, 0xBE},