ASoC: Intel: avs: PCI driver implementation

HD-Audio bus is a PCI device. Add all functions necessary to probe such
device along with its removal sequence. Behaviour implemented for all
standard operations is similar to existing solutions: sound/pci/hda and
sound/soc/intel/skylake.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220516101116.190192-13-cezary.rojewski@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/intel-dsp-config.h

@@ -15,7 +15,8 @@ enum {
 	SND_INTEL_DSP_DRIVER_LEGACY,
 	SND_INTEL_DSP_DRIVER_SST,
 	SND_INTEL_DSP_DRIVER_SOF,
-	SND_INTEL_DSP_DRIVER_LAST = SND_INTEL_DSP_DRIVER_SOF
+	SND_INTEL_DSP_DRIVER_AVS,
+	SND_INTEL_DSP_DRIVER_LAST = SND_INTEL_DSP_DRIVER_AVS
 };
 
 #if IS_ENABLED(CONFIG_SND_INTEL_DSP_CONFIG)

sound/soc/intel/Kconfig

@@ -216,6 +216,7 @@ config SND_SOC_INTEL_AVS
 	depends on COMMON_CLK
 	select SND_SOC_ACPI if ACPI
 	select SND_SOC_TOPOLOGY
+	select SND_HDA
 	select SND_HDA_EXT_CORE
 	select SND_HDA_DSP_LOADER
 	select SND_INTEL_DSP_CONFIG

sound/soc/intel/avs/avs.h

@@ -126,6 +126,7 @@ struct avs_dev {
 	char **lib_names;
 
 	struct completion fw_ready;
+	struct work_struct probe_work;
 
 	struct nhlt_acpi_table *nhlt;
 	struct list_head comp_list;

sound/soc/intel/avs/dsp.c

@@ -6,7 +6,6 @@
 //          Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
 //
 
-#include <linux/module.h>
 #include <sound/hdaudio_ext.h>
 #include "avs.h"
 #include "registers.h"
@@ -322,5 +321,3 @@ int avs_dsp_delete_pipeline(struct avs_dev *adev, u8 instance_id)
 	ida_free(&adev->ppl_ida, instance_id);
 	return ret;
 }
-
-MODULE_LICENSE("GPL");

sound/soc/intel/avs/registers.h

@@ -14,6 +14,7 @@
 #define AZX_PGCTL_LSRMD_MASK		BIT(4)
 #define AZX_CGCTL_MISCBDCGE_MASK	BIT(6)
 #define AZX_VS_EM2_L1SEN		BIT(13)
+#define AZX_VS_EM2_DUM			BIT(23)
 
 /* Intel HD Audio General DSP Registers */
 #define AVS_ADSP_GEN_BASE		0x0