ata: Disable AHCI ALPM feature for Ampere Computing eMAG SATA (20bdc376) · Commits · 戴 / test

drivers/ata/ahci_platform.c

+14 −1

Original line number	Diff line number	Diff line
		@@ -33,6 +33,13 @@ static const struct ata_port_info ahci_port_info = {
		.port_ops = &ahci_platform_ops,
		};

		static const struct ata_port_info ahci_port_info_nolpm = {
		.flags = AHCI_FLAG_COMMON \| ATA_FLAG_NO_LPM,
		.pio_mask = ATA_PIO4,
		.udma_mask = ATA_UDMA6,
		.port_ops = &ahci_platform_ops,
		};

		static struct scsi_host_template ahci_platform_sht = {
		AHCI_SHT(DRV_NAME),
		};
		@@ -41,6 +48,7 @@ static int ahci_probe(struct platform_device *pdev)
		{
		struct device *dev = &pdev->dev;
		struct ahci_host_priv *hpriv;
		const struct ata_port_info *port;
		int rc;

		hpriv = ahci_platform_get_resources(pdev,
		@@ -58,7 +66,11 @@ static int ahci_probe(struct platform_device *pdev)
		if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
		hpriv->flags \|= AHCI_HFLAG_NO_FBS \| AHCI_HFLAG_NO_NCQ;

		rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info,
		port = acpi_device_get_match_data(dev);
		if (!port)
		port = &ahci_port_info;

		rc = ahci_platform_init_host(pdev, hpriv, port,
		&ahci_platform_sht);
		if (rc)
		goto disable_resources;
		@@ -85,6 +97,7 @@ static const struct of_device_id ahci_of_match[] = {
		MODULE_DEVICE_TABLE(of, ahci_of_match);

		static const struct acpi_device_id ahci_acpi_match[] = {
		{ "APMC0D33", (unsigned long)&ahci_port_info_nolpm },
		{ ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
		{},
		};