Unverified Commit 088a4098 authored by Syed Saba Kareem's avatar Syed Saba Kareem Committed by Mark Brown
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ASoC: amd: acp: add pm ops support for acp pci driver 



Add pm ops support for common acp pci driver.

Signed-off-by: default avatarSyed Saba Kareem <Syed.SabaKareem@amd.com>
Link: https://lore.kernel.org/r/20230626135515.1252063-6-Syed.SabaKareem@amd.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 7a839030

sound/soc/amd/acp/acp-pci.c

+46 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/pci.h>

#include <linux/platform_device.h>

#include <linux/module.h>

#include <linux/pm_runtime.h>



#include "amd.h"

#include "../mach-config.h"
@@ -141,6 +142,11 @@ static int acp_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id 
		goto unregister_dmic_dev;

	}

	chip->chip_pdev = pdev;

	dev_set_drvdata(&pci->dev, chip);

	pm_runtime_set_autosuspend_delay(&pci->dev, 2000);

	pm_runtime_use_autosuspend(&pci->dev);

	pm_runtime_put_noidle(&pci->dev);

	pm_runtime_allow(&pci->dev);

	return ret;



unregister_dmic_dev:
@@ -153,12 +159,49 @@ static int acp_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id 
	return ret;

};



static int __maybe_unused snd_acp_suspend(struct device *dev)

{

	struct acp_chip_info *chip;

	int ret;



	chip = dev_get_drvdata(dev);

	ret = acp_deinit(chip->base);

	if (ret)

		dev_err(dev, "ACP de-init failed\n");

	return ret;

}



static int __maybe_unused snd_acp_resume(struct device *dev)

{

	struct acp_chip_info *chip;

	struct acp_dev_data *adata;

	struct device child;

	int ret;



	chip = dev_get_drvdata(dev);

	ret = acp_init(chip);

	if (ret)

		dev_err(dev, "ACP init failed\n");

	child = chip->chip_pdev->dev;

	adata = dev_get_drvdata(&child);

	if (adata)

		acp_enable_interrupts(adata);

	return ret;

}



static const struct dev_pm_ops acp_pm_ops = {

	SET_RUNTIME_PM_OPS(snd_acp_suspend, snd_acp_resume, NULL)

	SET_SYSTEM_SLEEP_PM_OPS(snd_acp_suspend, snd_acp_resume)

};



static void acp_pci_remove(struct pci_dev *pci)

{

	struct acp_chip_info *chip;

	int ret;



	chip = pci_get_drvdata(pci);

	pm_runtime_forbid(&pci->dev);

	pm_runtime_get_noresume(&pci->dev);

	if (dmic_dev)

		platform_device_unregister(dmic_dev);

	if (pdev)
@@ -181,6 +224,9 @@ static struct pci_driver snd_amd_acp_pci_driver = { 
	.id_table = acp_pci_ids,

	.probe = acp_pci_probe,

	.remove = acp_pci_remove,

	.driver = {

		.pm = &acp_pm_ops,

	},

};

module_pci_driver(snd_amd_acp_pci_driver);