ASoC: SOF: Intel: MTL: reuse the common ops for PM

Now that the disabling of interrupts and powering down the DSP has been
abstracted, re-use the common ops for PM for MTL as well.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-10-ranjani.sridharan@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/mtl.c

@@ -579,150 +579,6 @@ static int mtl_dsp_ipc_get_window_offset(struct snd_sof_dev *sdev, u32 id)
 	return MTL_SRAM_WINDOW_OFFSET(id);
 }
 
-static int mtl_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
-{
-	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
-	const struct sof_intel_dsp_desc *chip = hda->desc;
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
-	struct hdac_bus *bus = sof_to_bus(sdev);
-#endif
-	u32 dsphfdsscs;
-	u32 cpa;
-	int ret;
-	int i;
-
-	mtl_disable_ipc_interrupts(sdev);
-	ret = mtl_disable_interrupts(sdev);
-	if (ret)
-		return ret;
-
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
-	hda_codec_jack_wake_enable(sdev, runtime_suspend);
-	/* power down all hda link */
-	snd_hdac_ext_bus_link_power_down_all(bus);
-#endif
-	snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, MTL_HFPWRCTL,
-				MTL_HFPWRCTL_WPDSPHPXPG, 0);
-
-	/* Set the DSP subsystem power down */
-	snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, MTL_HFDSSCS,
-				MTL_HFDSSCS_SPA_MASK, 0);
-
-	/* Wait for unstable CPA read (1 then 0 then 1) just after setting SPA bit */
-	usleep_range(1000, 1010);
-
-	/* poll with timeout to check if operation successful */
-	cpa = MTL_HFDSSCS_CPA_MASK;
-	dsphfdsscs = snd_sof_dsp_read(sdev, HDA_DSP_BAR, MTL_HFDSSCS);
-	ret = snd_sof_dsp_read_poll_timeout(sdev, HDA_DSP_BAR, MTL_HFDSSCS, dsphfdsscs,
-					    (dsphfdsscs & cpa) == 0, HDA_DSP_REG_POLL_INTERVAL_US,
-					HDA_DSP_RESET_TIMEOUT_US);
-	if (ret < 0)
-		dev_err(sdev->dev, "failed to disable DSP subsystem\n");
-
-	/* reset ref counts for all cores */
-	for (i = 0; i < chip->cores_num; i++)
-		sdev->dsp_core_ref_count[i] = 0;
-
-	/* TODO: need to reset controller? */
-
-	/* display codec can be powered off after link reset */
-	hda_codec_i915_display_power(sdev, false);
-
-	return 0;
-}
-
-static int mtl_dsp_suspend(struct snd_sof_dev *sdev, u32 target_state)
-{
-	const struct sof_dsp_power_state target_dsp_state = {
-		.state = target_state,
-		.substate = target_state == SOF_DSP_PM_D0 ?
-				SOF_HDA_DSP_PM_D0I3 : 0,
-	};
-	int ret;
-
-	ret = mtl_suspend(sdev, false);
-	if (ret < 0)
-		return ret;
-
-	return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
-}
-
-static int mtl_dsp_runtime_suspend(struct snd_sof_dev *sdev)
-{
-	const struct sof_dsp_power_state target_state = {
-		.state = SOF_DSP_PM_D3,
-	};
-	int ret;
-
-	ret = mtl_suspend(sdev, true);
-	if (ret < 0)
-		return ret;
-
-	return snd_sof_dsp_set_power_state(sdev, &target_state);
-}
-
-static int mtl_resume(struct snd_sof_dev *sdev, bool runtime_resume)
-{
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
-	struct hdac_bus *bus = sof_to_bus(sdev);
-	struct hdac_ext_link *hlink = NULL;
-#endif
-
-	/* display codec must be powered before link reset */
-	hda_codec_i915_display_power(sdev, true);
-
-#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
-	/* check jack status */
-	if (runtime_resume) {
-		hda_codec_jack_wake_enable(sdev, false);
-		if (sdev->system_suspend_target == SOF_SUSPEND_NONE)
-			hda_codec_jack_check(sdev);
-	}
-
-	/* turn off the links that were off before suspend */
-	list_for_each_entry(hlink, &bus->hlink_list, list) {
-		if (!hlink->ref_count)
-			snd_hdac_ext_bus_link_power_down(hlink);
-	}
-
-	/* check dma status and clean up CORB/RIRB buffers */
-	if (!bus->cmd_dma_state)
-		snd_hdac_bus_stop_cmd_io(bus);
-#endif
-
-	return 0;
-}
-
-static int mtl_dsp_resume(struct snd_sof_dev *sdev)
-{
-	const struct sof_dsp_power_state target_state = {
-		.state = SOF_DSP_PM_D0,
-		.substate = SOF_HDA_DSP_PM_D0I0,
-	};
-	int ret;
-
-	ret = mtl_resume(sdev, false);
-	if (ret < 0)
-		return ret;
-
-	return snd_sof_dsp_set_power_state(sdev, &target_state);
-}
-
-static int mtl_dsp_runtime_resume(struct snd_sof_dev *sdev)
-{
-	const struct sof_dsp_power_state target_state = {
-		.state = SOF_DSP_PM_D0,
-	};
-	int ret;
-
-	ret = mtl_resume(sdev, true);
-	if (ret < 0)
-		return ret;
-
-	return snd_sof_dsp_set_power_state(sdev, &target_state);
-}
-
 static void mtl_ipc_dump(struct snd_sof_dev *sdev)
 {
 	u32 hipcctl;
@@ -785,12 +641,6 @@ int sof_mtl_ops_init(struct snd_sof_dev *sdev)
 	/* dsp core get/put */
 	/* TODO: add core_get and core_put */
 
-	/* PM */
-	sof_mtl_ops.suspend = mtl_dsp_suspend;
-	sof_mtl_ops.resume = mtl_dsp_resume;
-	sof_mtl_ops.runtime_suspend = mtl_dsp_runtime_suspend;
-	sof_mtl_ops.runtime_resume = mtl_dsp_runtime_resume;
-
 	sdev->private = devm_kzalloc(sdev->dev, sizeof(struct sof_ipc4_fw_data), GFP_KERNEL);
 	if (!sdev->private)
 		return -ENOMEM;