ASoC: Intel: cnl: Add sst library functions for cnl platform

This adds the necessary DSP functions specific for the Cannonlake platform
which includes firmware download using host DMA, DO/D3 handlers, irq_thread
handlers and sst ops.
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/skylake/Makefile

@@ -8,7 +8,8 @@ endif
 obj-$(CONFIG_SND_SOC_INTEL_SKYLAKE) += snd-soc-skl.o
 
 # Skylake IPC Support
-snd-soc-skl-ipc-objs := skl-sst-ipc.o skl-sst-dsp.o skl-sst-cldma.o \
-		skl-sst.o bxt-sst.o skl-sst-utils.o
+snd-soc-skl-ipc-objs := skl-sst-ipc.o skl-sst-dsp.o cnl-sst-dsp.o \
+		skl-sst-cldma.o skl-sst.o bxt-sst.o cnl-sst.o \
+		skl-sst-utils.o
 
 obj-$(CONFIG_SND_SOC_INTEL_SKYLAKE) += snd-soc-skl-ipc.o

sound/soc/intel/skylake/cnl-sst-dsp.h

@@ -103,4 +103,10 @@ void cnl_ipc_op_int_disable(struct sst_dsp *ctx);
 bool cnl_ipc_int_status(struct sst_dsp *ctx);
 void cnl_ipc_free(struct sst_generic_ipc *ipc);
 
+int cnl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
+		     const char *fw_name, struct skl_dsp_loader_ops dsp_ops,
+		     struct skl_sst **dsp);
+int cnl_sst_init_fw(struct device *dev, struct skl_sst *ctx);
+void cnl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx);
+
 #endif /*__CNL_SST_DSP_H__*/