From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Wed, 29 Oct 2014 15:40:28 +0000 (+0000)
Subject: ASoC: Intel: Add generic support for DSP wake, sleep and stall
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d96c53a193dd65380452c8e9f6dcf15cf829c7dc;p=linux-beck.git

ASoC: Intel: Add generic support for DSP wake, sleep and stall

Add generic functions to support DSP sleep, wake and stall.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/intel/sst-dsp-priv.h b/sound/soc/intel/sst-dsp-priv.h
index be81b86b6462..b9da030e312d 100644
--- a/sound/soc/intel/sst-dsp-priv.h
+++ b/sound/soc/intel/sst-dsp-priv.h
@@ -36,6 +36,9 @@ struct sst_ops {
 	/* DSP core boot / reset */
 	void (*boot)(struct sst_dsp *);
 	void (*reset)(struct sst_dsp *);
+	int (*wake)(struct sst_dsp *);
+	void (*sleep)(struct sst_dsp *);
+	void (*stall)(struct sst_dsp *);
 
 	/* Shim IO */
 	void (*write)(void __iomem *addr, u32 offset, u32 value);
diff --git a/sound/soc/intel/sst-dsp.c b/sound/soc/intel/sst-dsp.c
index d0fc6853b2b7..86e410845670 100644
--- a/sound/soc/intel/sst-dsp.c
+++ b/sound/soc/intel/sst-dsp.c
@@ -245,6 +245,29 @@ int sst_dsp_boot(struct sst_dsp *sst)
 }
 EXPORT_SYMBOL_GPL(sst_dsp_boot);
 
+int sst_dsp_wake(struct sst_dsp *sst)
+{
+	if (sst->ops->wake)
+		return sst->ops->wake(sst);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_wake);
+
+void sst_dsp_sleep(struct sst_dsp *sst)
+{
+	if (sst->ops->sleep)
+		sst->ops->sleep(sst);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_sleep);
+
+void sst_dsp_stall(struct sst_dsp *sst)
+{
+	if (sst->ops->stall)
+		sst->ops->stall(sst);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_stall);
+
 void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg)
 {
 	sst_dsp_shim_write_unlocked(dsp, SST_IPCX, msg | SST_IPCX_BUSY);
diff --git a/sound/soc/intel/sst-dsp.h b/sound/soc/intel/sst-dsp.h
index 17ee9239092a..7bb482053489 100644
--- a/sound/soc/intel/sst-dsp.h
+++ b/sound/soc/intel/sst-dsp.h
@@ -245,6 +245,10 @@ void sst_memcpy_fromio_32(struct sst_dsp *sst,
 /* DSP reset & boot */
 void sst_dsp_reset(struct sst_dsp *sst);
 int sst_dsp_boot(struct sst_dsp *sst);
+int sst_dsp_wake(struct sst_dsp *sst);
+void sst_dsp_sleep(struct sst_dsp *sst);
+void sst_dsp_stall(struct sst_dsp *sst);
+
 /* DMA */
 int sst_dsp_dma_get_channel(struct sst_dsp *dsp, int chan_id);
 void sst_dsp_dma_put_channel(struct sst_dsp *dsp);