[PATCH v2 2/4] ahci: clean up ahci_broken_devslp quirk

[Niklas Cassel <cassel@kernel.org>]

Most quirks are applied using a specific board type board_ahci_no*
(e.g. board_ahci_nomsi, board_ahci_noncq), which then sets a flag
representing the specific quirk.

ahci_pci_tbl (which is the table of all supported PCI devices), then
uses that board type for the PCI vendor and device IDs which need to
be quirked.

The ahci_broken_devslp quirk is not implemented in this standard way.

Modify the ahci_broken_devslp quirk to be implemented like the other
quirks. This way, we will not have the same PCI device and vendor ID
scattered over ahci.c. It will simply be defined in a single location.

Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
---
 drivers/ata/ahci.c | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index a2efe916c6e2..d8e5b26524f6 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -61,6 +61,7 @@ enum board_ids {
 	 * without testing that the platform actually works without the quirk.)
 	 */
 	board_ahci_pcs_quirk,
+	board_ahci_pcs_quirk_no_devslp,
 	board_ahci_pcs_quirk_no_sntf,
 	board_ahci_yes_fbs,
 
@@ -172,6 +173,14 @@ static const struct ata_port_info ahci_port_info[] = {
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_ops,
 	},
+	[board_ahci_pcs_quirk_no_devslp] = {
+		AHCI_HFLAGS	(AHCI_HFLAG_INTEL_PCS_QUIRK |
+				 AHCI_HFLAG_NO_DEVSLP),
+		.flags		= AHCI_FLAG_COMMON,
+		.pio_mask	= ATA_PIO4,
+		.udma_mask	= ATA_UDMA6,
+		.port_ops	= &ahci_ops,
+	},
 	[board_ahci_pcs_quirk_no_sntf] = {
 		AHCI_HFLAGS	(AHCI_HFLAG_INTEL_PCS_QUIRK |
 				 AHCI_HFLAG_NO_SNTF),
@@ -420,7 +429,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, 0x06d7), board_ahci_pcs_quirk }, /* Comet Lake-H RAID */
 	{ PCI_VDEVICE(INTEL, 0xa386), board_ahci_pcs_quirk }, /* Comet Lake PCH-V RAID */
 	{ PCI_VDEVICE(INTEL, 0x0f22), board_ahci_pcs_quirk }, /* Bay Trail AHCI */
-	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_pcs_quirk }, /* Bay Trail AHCI */
+	{ PCI_VDEVICE(INTEL, 0x0f23), board_ahci_pcs_quirk_no_devslp }, /* Bay Trail AHCI */
 	{ PCI_VDEVICE(INTEL, 0x22a3), board_ahci_pcs_quirk }, /* Cherry Tr. AHCI */
 	{ PCI_VDEVICE(INTEL, 0x5ae3), board_ahci_pcs_quirk }, /* ApolloLake AHCI */
 	{ PCI_VDEVICE(INTEL, 0x34d3), board_ahci_pcs_quirk }, /* Ice Lake LP AHCI */
@@ -1420,17 +1429,6 @@ static bool ahci_broken_online(struct pci_dev *pdev)
 	return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff);
 }
 
-static bool ahci_broken_devslp(struct pci_dev *pdev)
-{
-	/* device with broken DEVSLP but still showing SDS capability */
-	static const struct pci_device_id ids[] = {
-		{ PCI_VDEVICE(INTEL, 0x0f23)}, /* Valleyview SoC */
-		{}
-	};
-
-	return pci_match_id(ids, pdev);
-}
-
 #ifdef CONFIG_ATA_ACPI
 static void ahci_gtf_filter_workaround(struct ata_host *host)
 {
@@ -1823,10 +1821,6 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 				&dev_attr_remapped_nvme.attr,
 				NULL);
 
-	/* must set flag prior to save config in order to take effect */
-	if (ahci_broken_devslp(pdev))
-		hpriv->flags |= AHCI_HFLAG_NO_DEVSLP;
-
 #ifdef CONFIG_ARM64
 	if (pdev->vendor == PCI_VENDOR_ID_HUAWEI &&
 	    pdev->device == 0xa235 &&
-- 
2.43.0