Unverified Commit f763fb2f authored by Vijendar Mukunda's avatar Vijendar Mukunda Committed by Mark Brown
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ASoC: amd: ps: add mutex lock for accessing common registers 



Add mutex lock for accessing ACP common registers across different
modules.

Signed-off-by: default avatarVijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230104055435.321327-1-Vijendar.Mukunda@amd.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 892dbe0e

sound/soc/amd/ps/acp63.h

+1 −0
Original line number Diff line number Diff line
@@ -106,6 +106,7 @@ struct acp63_dev_data { 
	struct resource *res;

	bool acp63_audio_mode;

	struct platform_device *pdev[ACP63_DEVS];

	struct mutex acp_lock; /* protect shared registers */

	u16 pdev_mask;

	u16 pdev_count;

	u16 pdm_dev_index;

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

+3 −1
Original line number Diff line number Diff line
@@ -209,7 +209,8 @@ static int create_acp63_platform_devs(struct pci_dev *pci, struct acp63_dev_data 
	case ACP63_PDM_DEV_MASK:

		adata->pdm_dev_index  = 0;

		acp63_fill_platform_dev_info(&pdevinfo[0], parent, NULL, "acp_ps_pdm_dma",

					     0, adata->res, 1, NULL, 0);

					     0, adata->res, 1, &adata->acp_lock,

					     sizeof(adata->acp_lock));

		acp63_fill_platform_dev_info(&pdevinfo[1], parent, NULL, "dmic-codec",

					     0, NULL, 0, NULL, 0);

		acp63_fill_platform_dev_info(&pdevinfo[2], parent, NULL, "acp_ps_mach",
@@ -283,6 +284,7 @@ static int snd_acp63_probe(struct pci_dev *pci, 
	}

	pci_set_master(pci);

	pci_set_drvdata(pci, adata);

	mutex_init(&adata->acp_lock);

	ret = acp63_init(adata->acp63_base, &pci->dev);

	if (ret)

		goto release_regions;