sound/soc/sof/intel/hda-ctrl.c - linux - Git at Google

 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 //
 // This file is provided under a dual BSD/GPLv2 license.  When using or
 // redistributing this file, you may do so under either license.
 //
 // Copyright(c) 2018 Intel Corporation. All rights reserved.
 //
 // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
 //	    Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
 //	    Rander Wang <rander.wang@intel.com>
 //          Keyon Jie <yang.jie@linux.intel.com>
 //

 /*
  * Hardware interface for generic Intel audio DSP HDA IP
  */

 #include <sound/hdaudio_ext.h>
 #include <sound/hda_register.h>
 #include "../ops.h"
 #include "hda.h"

 /*
  * HDA Operations.
  */

 int hda_dsp_ctrl_link_reset(struct snd_sof_dev *sdev, bool reset)
 {
 	unsigned long timeout;
 	u32 gctl = 0;
 	u32 val;

 	/* 0 to enter reset and 1 to exit reset */
 	val = reset ? 0 : SOF_HDA_GCTL_RESET;

 	/* enter/exit HDA controller reset */
 	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_GCTL,
 				SOF_HDA_GCTL_RESET, val);

 	/* wait to enter/exit reset */
 	timeout = jiffies + msecs_to_jiffies(HDA_DSP_CTRL_RESET_TIMEOUT);
 	while (time_before(jiffies, timeout)) {
 		gctl = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_GCTL);
 		if ((gctl & SOF_HDA_GCTL_RESET) == val)
 			return 0;
 		usleep_range(500, 1000);
 	}

 	/* enter/exit reset failed */
 	dev_err(sdev->dev, "error: failed to %s HDA controller gctl 0x%x\n",
 		reset ? "reset" : "ready", gctl);
 	return -EIO;
 }

 int hda_dsp_ctrl_get_caps(struct snd_sof_dev *sdev)
 {
 	struct hdac_bus *bus = sof_to_bus(sdev);
 	u32 cap, offset, feature;
 	int count = 0;

 	offset = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_LLCH);

 	do {
 		cap = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, offset);

 		dev_dbg(sdev->dev, "checking for capabilities at offset 0x%x\n",
 			offset & SOF_HDA_CAP_NEXT_MASK);

 		feature = (cap & SOF_HDA_CAP_ID_MASK) >> SOF_HDA_CAP_ID_OFF;

 		switch (feature) {
 		case SOF_HDA_PP_CAP_ID:
 			dev_dbg(sdev->dev, "found DSP capability at 0x%x\n",
 				offset);
 			bus->ppcap = bus->remap_addr + offset;
 			sdev->bar[HDA_DSP_PP_BAR] = bus->ppcap;
 			break;
 		case SOF_HDA_SPIB_CAP_ID:
 			dev_dbg(sdev->dev, "found SPIB capability at 0x%x\n",
 				offset);
 			bus->spbcap = bus->remap_addr + offset;
 			sdev->bar[HDA_DSP_SPIB_BAR] = bus->spbcap;
 			break;
 		case SOF_HDA_DRSM_CAP_ID:
 			dev_dbg(sdev->dev, "found DRSM capability at 0x%x\n",
 				offset);
 			bus->drsmcap = bus->remap_addr + offset;
 			sdev->bar[HDA_DSP_DRSM_BAR] = bus->drsmcap;
 			break;
 		case SOF_HDA_GTS_CAP_ID:
 			dev_dbg(sdev->dev, "found GTS capability at 0x%x\n",
 				offset);
 			bus->gtscap = bus->remap_addr + offset;
 			break;
 		case SOF_HDA_ML_CAP_ID:
 			dev_dbg(sdev->dev, "found ML capability at 0x%x\n",
 				offset);
 			bus->mlcap = bus->remap_addr + offset;
 			break;
 		default:
 			dev_vdbg(sdev->dev, "found capability %d at 0x%x\n",
 				 feature, offset);
 			break;
 		}

 		offset = cap & SOF_HDA_CAP_NEXT_MASK;
 	} while (count++ <= SOF_HDA_MAX_CAPS && offset);

 	return 0;
 }

 void hda_dsp_ctrl_ppcap_enable(struct snd_sof_dev *sdev, bool enable)
 {
 	u32 val = enable ? SOF_HDA_PPCTL_GPROCEN : 0;

 	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
 				SOF_HDA_PPCTL_GPROCEN, val);
 }

 void hda_dsp_ctrl_ppcap_int_enable(struct snd_sof_dev *sdev, bool enable)
 {
 	u32 val	= enable ? SOF_HDA_PPCTL_PIE : 0;

 	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
 				SOF_HDA_PPCTL_PIE, val);
 }

 void hda_dsp_ctrl_misc_clock_gating(struct snd_sof_dev *sdev, bool enable)
 {
 	u32 val = enable ? PCI_CGCTL_MISCBDCGE_MASK : 0;

 	snd_sof_pci_update_bits(sdev, PCI_CGCTL, PCI_CGCTL_MISCBDCGE_MASK, val);
 }

 /*
  * enable/disable audio dsp clock gating and power gating bits.
  * This allows the HW to opportunistically power and clock gate
  * the audio dsp when it is idle
  */
 int hda_dsp_ctrl_clock_power_gating(struct snd_sof_dev *sdev, bool enable)
 {
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	struct hdac_bus *bus = sof_to_bus(sdev);
 #endif
 	u32 val;

 	/* enable/disable audio dsp clock gating */
 	val = enable ? PCI_CGCTL_ADSPDCGE : 0;
 	snd_sof_pci_update_bits(sdev, PCI_CGCTL, PCI_CGCTL_ADSPDCGE, val);

 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	/* enable/disable L1 support */
 	val = enable ? SOF_HDA_VS_EM2_L1SEN : 0;
 	snd_hdac_chip_updatel(bus, VS_EM2, SOF_HDA_VS_EM2_L1SEN, val);
 #endif

 	/* enable/disable audio dsp power gating */
 	val = enable ? 0 : PCI_PGCTL_ADSPPGD;
 	snd_sof_pci_update_bits(sdev, PCI_PGCTL, PCI_PGCTL_ADSPPGD, val);

 	return 0;
 }

 int hda_dsp_ctrl_init_chip(struct snd_sof_dev *sdev, bool full_reset)
 {
 	struct hdac_bus *bus = sof_to_bus(sdev);
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	struct hdac_ext_link *hlink;
 #endif
 	struct hdac_stream *stream;
 	int sd_offset, ret = 0;

 	if (bus->chip_init)
 		return 0;

 	hda_dsp_ctrl_misc_clock_gating(sdev, false);

 	if (full_reset) {
 		/* reset HDA controller */
 		ret = hda_dsp_ctrl_link_reset(sdev, true);
 		if (ret < 0) {
 			dev_err(sdev->dev, "error: failed to reset HDA controller\n");
 			return ret;
 		}

 		usleep_range(500, 1000);

 		/* exit HDA controller reset */
 		ret = hda_dsp_ctrl_link_reset(sdev, false);
 		if (ret < 0) {
 			dev_err(sdev->dev, "error: failed to exit HDA controller reset\n");
 			return ret;
 		}

 		usleep_range(1000, 1200);
 	}

 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	/* check to see if controller is ready */
 	if (!snd_hdac_chip_readb(bus, GCTL)) {
 		dev_dbg(bus->dev, "controller not ready!\n");
 		return -EBUSY;
 	}

 	/* Accept unsolicited responses */
 	snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, AZX_GCTL_UNSOL);

 	/* detect codecs */
 	if (!bus->codec_mask) {
 		bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS);
 		dev_dbg(bus->dev, "codec_mask = 0x%lx\n", bus->codec_mask);
 	}
 #endif

 	/* clear stream status */
 	list_for_each_entry(stream, &bus->stream_list, list) {
 		sd_offset = SOF_STREAM_SD_OFFSET(stream);
 		snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,
 				  sd_offset + SOF_HDA_ADSP_REG_CL_SD_STS,
 				  SOF_HDA_CL_DMA_SD_INT_MASK);
 	}

 	/* clear WAKESTS */
 	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_WAKESTS,
 			  SOF_HDA_WAKESTS_INT_MASK);

 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	/* clear rirb status */
 	snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK);
 #endif

 	/* clear interrupt status register */
 	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS,
 			  SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_ALL_STREAM);

 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	/* initialize the codec command I/O */
 	snd_hdac_bus_init_cmd_io(bus);
 #endif

 	/* enable CIE and GIE interrupts */
 	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
 				SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_GLOBAL_EN,
 				SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_GLOBAL_EN);

 	/* program the position buffer */
 	if (bus->use_posbuf && bus->posbuf.addr) {
 		snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_ADSP_DPLBASE,
 				  (u32)bus->posbuf.addr);
 		snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_ADSP_DPUBASE,
 				  upper_32_bits(bus->posbuf.addr));
 	}

 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	/* Reset stream-to-link mapping */
 	list_for_each_entry(hlink, &bus->hlink_list, list)
 		writel(0, hlink->ml_addr + AZX_REG_ML_LOSIDV);
 #endif

 	bus->chip_init = true;

 	hda_dsp_ctrl_misc_clock_gating(sdev, true);

 	return ret;
 }

 void hda_dsp_ctrl_stop_chip(struct snd_sof_dev *sdev)
 {
 	struct hdac_bus *bus = sof_to_bus(sdev);
 	struct hdac_stream *stream;
 	int sd_offset;

 	if (!bus->chip_init)
 		return;

 	/* disable interrupts in stream descriptor */
 	list_for_each_entry(stream, &bus->stream_list, list) {
 		sd_offset = SOF_STREAM_SD_OFFSET(stream);
 		snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR,
 					sd_offset +
 					SOF_HDA_ADSP_REG_CL_SD_CTL,
 					SOF_HDA_CL_DMA_SD_INT_MASK,
 					0);
 	}

 	/* disable SIE for all streams */
 	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
 				SOF_HDA_INT_ALL_STREAM,	0);

 	/* disable controller CIE and GIE */
 	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
 				SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_GLOBAL_EN,
 				0);

 	/* clear stream status */
 	list_for_each_entry(stream, &bus->stream_list, list) {
 		sd_offset = SOF_STREAM_SD_OFFSET(stream);
 		snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,
 				  sd_offset + SOF_HDA_ADSP_REG_CL_SD_STS,
 				  SOF_HDA_CL_DMA_SD_INT_MASK);
 	}

 	/* clear WAKESTS */
 	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_WAKESTS,
 			  SOF_HDA_WAKESTS_INT_MASK);

 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	/* clear rirb status */
 	snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK);
 #endif

 	/* clear interrupt status register */
 	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS,
 			  SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_ALL_STREAM);

 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
 	/* disable CORB/RIRB */
 	snd_hdac_bus_stop_cmd_io(bus);
 #endif
 	/* disable position buffer */
 	if (bus->posbuf.addr) {
 		snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,
 				  SOF_HDA_ADSP_DPLBASE, 0);
 		snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,
 				  SOF_HDA_ADSP_DPUBASE, 0);
 	}

 	bus->chip_init = false;
 }
	// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
	//
	// This file is provided under a dual BSD/GPLv2 license. When using or
	// redistributing this file, you may do so under either license.
	//
	// Copyright(c) 2018 Intel Corporation. All rights reserved.
	//
	// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
	// Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
	// Rander Wang <rander.wang@intel.com>
	// Keyon Jie <yang.jie@linux.intel.com>
	//

	/*
	* Hardware interface for generic Intel audio DSP HDA IP
	*/

	#include <sound/hdaudio_ext.h>
	#include <sound/hda_register.h>
	#include "../ops.h"
	#include "hda.h"

	/*
	* HDA Operations.
	*/

	int hda_dsp_ctrl_link_reset(struct snd_sof_dev *sdev, bool reset)
	{
	unsigned long timeout;
	u32 gctl = 0;
	u32 val;

	/* 0 to enter reset and 1 to exit reset */
	val = reset ? 0 : SOF_HDA_GCTL_RESET;

	/* enter/exit HDA controller reset */
	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_GCTL,
	SOF_HDA_GCTL_RESET, val);

	/* wait to enter/exit reset */
	timeout = jiffies + msecs_to_jiffies(HDA_DSP_CTRL_RESET_TIMEOUT);
	while (time_before(jiffies, timeout)) {
	gctl = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_GCTL);
	if ((gctl & SOF_HDA_GCTL_RESET) == val)
	return 0;
	usleep_range(500, 1000);
	}

	/* enter/exit reset failed */
	dev_err(sdev->dev, "error: failed to %s HDA controller gctl 0x%x\n",
	reset ? "reset" : "ready", gctl);
	return -EIO;
	}

	int hda_dsp_ctrl_get_caps(struct snd_sof_dev *sdev)
	{
	struct hdac_bus *bus = sof_to_bus(sdev);
	u32 cap, offset, feature;
	int count = 0;

	offset = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_LLCH);

	do {
	cap = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, offset);

	dev_dbg(sdev->dev, "checking for capabilities at offset 0x%x\n",
	offset & SOF_HDA_CAP_NEXT_MASK);

	feature = (cap & SOF_HDA_CAP_ID_MASK) >> SOF_HDA_CAP_ID_OFF;

	switch (feature) {
	case SOF_HDA_PP_CAP_ID:
	dev_dbg(sdev->dev, "found DSP capability at 0x%x\n",
	offset);
	bus->ppcap = bus->remap_addr + offset;
	sdev->bar[HDA_DSP_PP_BAR] = bus->ppcap;
	break;
	case SOF_HDA_SPIB_CAP_ID:
	dev_dbg(sdev->dev, "found SPIB capability at 0x%x\n",
	offset);
	bus->spbcap = bus->remap_addr + offset;
	sdev->bar[HDA_DSP_SPIB_BAR] = bus->spbcap;
	break;
	case SOF_HDA_DRSM_CAP_ID:
	dev_dbg(sdev->dev, "found DRSM capability at 0x%x\n",
	offset);
	bus->drsmcap = bus->remap_addr + offset;
	sdev->bar[HDA_DSP_DRSM_BAR] = bus->drsmcap;
	break;
	case SOF_HDA_GTS_CAP_ID:
	dev_dbg(sdev->dev, "found GTS capability at 0x%x\n",
	offset);
	bus->gtscap = bus->remap_addr + offset;
	break;
	case SOF_HDA_ML_CAP_ID:
	dev_dbg(sdev->dev, "found ML capability at 0x%x\n",
	offset);
	bus->mlcap = bus->remap_addr + offset;
	break;
	default:
	dev_vdbg(sdev->dev, "found capability %d at 0x%x\n",
	feature, offset);
	break;
	}

	offset = cap & SOF_HDA_CAP_NEXT_MASK;
	} while (count++ <= SOF_HDA_MAX_CAPS && offset);

	return 0;
	}

	void hda_dsp_ctrl_ppcap_enable(struct snd_sof_dev *sdev, bool enable)
	{
	u32 val = enable ? SOF_HDA_PPCTL_GPROCEN : 0;

	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
	SOF_HDA_PPCTL_GPROCEN, val);
	}

	void hda_dsp_ctrl_ppcap_int_enable(struct snd_sof_dev *sdev, bool enable)
	{
	u32 val = enable ? SOF_HDA_PPCTL_PIE : 0;

	snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,
	SOF_HDA_PPCTL_PIE, val);
	}

	void hda_dsp_ctrl_misc_clock_gating(struct snd_sof_dev *sdev, bool enable)
	{
	u32 val = enable ? PCI_CGCTL_MISCBDCGE_MASK : 0;

	snd_sof_pci_update_bits(sdev, PCI_CGCTL, PCI_CGCTL_MISCBDCGE_MASK, val);
	}

	/*
	* enable/disable audio dsp clock gating and power gating bits.
	* This allows the HW to opportunistically power and clock gate
	* the audio dsp when it is idle
	*/
	int hda_dsp_ctrl_clock_power_gating(struct snd_sof_dev *sdev, bool enable)
	{
	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
	struct hdac_bus *bus = sof_to_bus(sdev);
	#endif
	u32 val;

	/* enable/disable audio dsp clock gating */
	val = enable ? PCI_CGCTL_ADSPDCGE : 0;
	snd_sof_pci_update_bits(sdev, PCI_CGCTL, PCI_CGCTL_ADSPDCGE, val);

	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
	/* enable/disable L1 support */
	val = enable ? SOF_HDA_VS_EM2_L1SEN : 0;
	snd_hdac_chip_updatel(bus, VS_EM2, SOF_HDA_VS_EM2_L1SEN, val);
	#endif

	/* enable/disable audio dsp power gating */
	val = enable ? 0 : PCI_PGCTL_ADSPPGD;
	snd_sof_pci_update_bits(sdev, PCI_PGCTL, PCI_PGCTL_ADSPPGD, val);

	return 0;
	}

	int hda_dsp_ctrl_init_chip(struct snd_sof_dev *sdev, bool full_reset)
	{
	struct hdac_bus *bus = sof_to_bus(sdev);
	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
	struct hdac_ext_link *hlink;
	#endif
	struct hdac_stream *stream;
	int sd_offset, ret = 0;

	if (bus->chip_init)
	return 0;

	hda_dsp_ctrl_misc_clock_gating(sdev, false);

	if (full_reset) {
	/* reset HDA controller */
	ret = hda_dsp_ctrl_link_reset(sdev, true);
	if (ret < 0) {
	dev_err(sdev->dev, "error: failed to reset HDA controller\n");
	return ret;
	}

	usleep_range(500, 1000);

	/* exit HDA controller reset */
	ret = hda_dsp_ctrl_link_reset(sdev, false);
	if (ret < 0) {
	dev_err(sdev->dev, "error: failed to exit HDA controller reset\n");
	return ret;
	}

	usleep_range(1000, 1200);
	}

	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
	/* check to see if controller is ready */
	if (!snd_hdac_chip_readb(bus, GCTL)) {
	dev_dbg(bus->dev, "controller not ready!\n");
	return -EBUSY;
	}

	/* Accept unsolicited responses */
	snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, AZX_GCTL_UNSOL);

	/* detect codecs */
	if (!bus->codec_mask) {
	bus->codec_mask = snd_hdac_chip_readw(bus, STATESTS);
	dev_dbg(bus->dev, "codec_mask = 0x%lx\n", bus->codec_mask);
	}
	#endif

	/* clear stream status */
	list_for_each_entry(stream, &bus->stream_list, list) {
	sd_offset = SOF_STREAM_SD_OFFSET(stream);
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,
	sd_offset + SOF_HDA_ADSP_REG_CL_SD_STS,
	SOF_HDA_CL_DMA_SD_INT_MASK);
	}

	/* clear WAKESTS */
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_WAKESTS,
	SOF_HDA_WAKESTS_INT_MASK);

	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
	/* clear rirb status */
	snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK);
	#endif

	/* clear interrupt status register */
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS,
	SOF_HDA_INT_CTRL_EN \| SOF_HDA_INT_ALL_STREAM);

	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
	/* initialize the codec command I/O */
	snd_hdac_bus_init_cmd_io(bus);
	#endif

	/* enable CIE and GIE interrupts */
	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
	SOF_HDA_INT_CTRL_EN \| SOF_HDA_INT_GLOBAL_EN,
	SOF_HDA_INT_CTRL_EN \| SOF_HDA_INT_GLOBAL_EN);

	/* program the position buffer */
	if (bus->use_posbuf && bus->posbuf.addr) {
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_ADSP_DPLBASE,
	(u32)bus->posbuf.addr);
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_ADSP_DPUBASE,
	upper_32_bits(bus->posbuf.addr));
	}

	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
	/* Reset stream-to-link mapping */
	list_for_each_entry(hlink, &bus->hlink_list, list)
	writel(0, hlink->ml_addr + AZX_REG_ML_LOSIDV);
	#endif

	bus->chip_init = true;

	hda_dsp_ctrl_misc_clock_gating(sdev, true);

	return ret;
	}

	void hda_dsp_ctrl_stop_chip(struct snd_sof_dev *sdev)
	{
	struct hdac_bus *bus = sof_to_bus(sdev);
	struct hdac_stream *stream;
	int sd_offset;

	if (!bus->chip_init)
	return;

	/* disable interrupts in stream descriptor */
	list_for_each_entry(stream, &bus->stream_list, list) {
	sd_offset = SOF_STREAM_SD_OFFSET(stream);
	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR,
	sd_offset +
	SOF_HDA_ADSP_REG_CL_SD_CTL,
	SOF_HDA_CL_DMA_SD_INT_MASK,
	0);
	}

	/* disable SIE for all streams */
	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
	SOF_HDA_INT_ALL_STREAM, 0);

	/* disable controller CIE and GIE */
	snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL,
	SOF_HDA_INT_CTRL_EN \| SOF_HDA_INT_GLOBAL_EN,
	0);

	/* clear stream status */
	list_for_each_entry(stream, &bus->stream_list, list) {
	sd_offset = SOF_STREAM_SD_OFFSET(stream);
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,
	sd_offset + SOF_HDA_ADSP_REG_CL_SD_STS,
	SOF_HDA_CL_DMA_SD_INT_MASK);
	}

	/* clear WAKESTS */
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_WAKESTS,
	SOF_HDA_WAKESTS_INT_MASK);

	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
	/* clear rirb status */
	snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK);
	#endif

	/* clear interrupt status register */
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS,
	SOF_HDA_INT_CTRL_EN \| SOF_HDA_INT_ALL_STREAM);

	#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
	/* disable CORB/RIRB */
	snd_hdac_bus_stop_cmd_io(bus);
	#endif
	/* disable position buffer */
	if (bus->posbuf.addr) {
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,
	SOF_HDA_ADSP_DPLBASE, 0);
	snd_sof_dsp_write(sdev, HDA_DSP_HDA_BAR,
	SOF_HDA_ADSP_DPUBASE, 0);
	}

	bus->chip_init = false;
	}