Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: (82 commits)
  [PATCH] pata_ali: small fixes
  [PATCH] pata_via: VIA 8251 bridged systems are now out and about
  [PATCH] trivial piix: swap bogus dot for comma space
  [PATCH] sata_promise: PHYMODE4 fixup
  [PATCH] libata: always use polling IDENTIFY
  [libata] pata_cs5535: fix build
  [PATCH] ahci: do not powerdown during initialization
  [PATCH] libata: prepare ata_sg_clean() for invocation from EH
  [PATCH] libata: separate out rw ATA taskfile building into ata_build_rw_tf()
  [PATCH] libata: implement ata_exec_internal_sg()
  [PATCH] libata: make sure IRQ is cleared after ata_bmdma_freeze()
  [PATCH] libata: move BMDMA host status recording from EH to interrupt handler
  [PATCH] libata: make sure sdev doesn't go away while rescanning
  [PATCH] libata: don't request sense if the port is frozen
  [PATCH] libata: fix READ CAPACITY simulation
  [PATCH] libata: implement ATA_FLAG_SETXFER_POLLING and use it in pata_via, take #2
  [PATCH] libata: set IRQF_SHARED for legacy PCI IDE IRQs
  [PATCH] libata: remove unused HSM_ST_UNKNOWN
  [PATCH] libata: kill unnecessary sht->max_sectors initializations
  [PATCH] libata: add missing sht->slave_destroy
  ...

1 files changed, 12 insertions, 5 deletions

diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c
index 9d1235ba06b..9c25a1e9173 100644
--- a/drivers/ata/sata_sis.c
+++ b/drivers/ata/sata_sis.c
@@ -173,7 +173,7 @@ static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
 	if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
 		pci_read_config_dword(pdev, cfg_addr+0x10, &val2);
 
-	return val|val2;
+	return (val|val2) &  0xfffffffb; /* avoid problems with powerdowned ports */
 }
 
 static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
@@ -212,7 +212,7 @@ static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg)
 	if ((pdev->device == 0x182) || (pmr & SIS_PMR_COMBINED))
 		val2 = inl(ap->ioaddr.scr_addr + (sc_reg * 4) + 0x10);
 
-	return val | val2;
+	return (val | val2) &  0xfffffffb;
 }
 
 static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
@@ -239,7 +239,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	static int printed_version;
 	struct ata_probe_ent *probe_ent = NULL;
 	int rc;
-	u32 genctl;
+	u32 genctl, val;
 	struct ata_port_info pi = sis_port_info, *ppi[2] = { &pi, &pi };
 	int pci_dev_busy = 0;
 	u8 pmr;
@@ -285,17 +285,24 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ent->device != 0x182) {
 		if ((pmr & SIS_PMR_COMBINED) == 0) {
 			dev_printk(KERN_INFO, &pdev->dev,
-				   "Detected SiS 180/181 chipset in SATA mode\n");
+				   "Detected SiS 180/181/964 chipset in SATA mode\n");
 			port2_start = 64;
 		}
 		else {
 			dev_printk(KERN_INFO, &pdev->dev,
 				   "Detected SiS 180/181 chipset in combined mode\n");
 			port2_start=0;
+			pi.flags |= ATA_FLAG_SLAVE_POSS;
 		}
 	}
 	else {
-		dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182 chipset\n");
+		pci_read_config_dword ( pdev, 0x6C, &val);
+		if (val & (1L << 31)) {
+			dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965 chipset\n");
+			pi.flags |= ATA_FLAG_SLAVE_POSS;
+		}
+		else
+			dev_printk(KERN_INFO, &pdev->dev, "Detected SiS 182/965L chipset\n");
 		port2_start = 0x20;
 	}