Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  ata_piix: Add HP Compaq nc6000 to the broken poweroff list
  ahci: add warning messages for hp laptops with broken suspend
  pata_efar: fix PIO2 underclocking
  pata_legacy: wait for async probing

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 08186ecbaf8d037c0e9f136802bb3577488bcab9..6b91c26a4635647ca1a29a175f0bd7a1b6e44245 100644 (file)
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -220,6 +220,7 @@ enum {
        AHCI_HFLAG_NO_HOTPLUG           = (1 << 7), /* ignore PxSERR.DIAG.N */
        AHCI_HFLAG_SECT255              = (1 << 8), /* max 255 sectors */
        AHCI_HFLAG_YES_NCQ              = (1 << 9), /* force NCQ cap on */
+       AHCI_HFLAG_NO_SUSPEND           = (1 << 10), /* don't suspend */
 
        /* ap->flags bits */
 
@@ -2316,9 +2317,17 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg)
 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
 {
        struct ata_host *host = dev_get_drvdata(&pdev->dev);
+       struct ahci_host_priv *hpriv = host->private_data;
        void __iomem *mmio = host->iomap[AHCI_PCI_BAR];
        u32 ctl;
 
+       if (mesg.event & PM_EVENT_SUSPEND &&
+           hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
+               dev_printk(KERN_ERR, &pdev->dev,
+                          "BIOS update required for suspend/resume\n");
+               return -EIO;
+       }
+
        if (mesg.event & PM_EVENT_SLEEP) {
                /* AHCI spec rev1.1 section 8.3.3:
                 * Software must disable interrupts prior to requesting a
@@ -2610,6 +2619,63 @@ static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
        return false;
 }
 
+static bool ahci_broken_suspend(struct pci_dev *pdev)
+{
+       static const struct dmi_system_id sysids[] = {
+               /*
+                * On HP dv[4-6] and HDX18 with earlier BIOSen, link
+                * to the harddisk doesn't become online after
+                * resuming from STR.  Warn and fail suspend.
+                */
+               {
+                       .ident = "dv4",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                               DMI_MATCH(DMI_PRODUCT_NAME,
+                                         "HP Pavilion dv4 Notebook PC"),
+                       },
+                       .driver_data = "F.30", /* cutoff BIOS version */
+               },
+               {
+                       .ident = "dv5",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                               DMI_MATCH(DMI_PRODUCT_NAME,
+                                         "HP Pavilion dv5 Notebook PC"),
+                       },
+                       .driver_data = "F.16", /* cutoff BIOS version */
+               },
+               {
+                       .ident = "dv6",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                               DMI_MATCH(DMI_PRODUCT_NAME,
+                                         "HP Pavilion dv6 Notebook PC"),
+                       },
+                       .driver_data = "F.21",  /* cutoff BIOS version */
+               },
+               {
+                       .ident = "HDX18",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                               DMI_MATCH(DMI_PRODUCT_NAME,
+                                         "HP HDX18 Notebook PC"),
+                       },
+                       .driver_data = "F.23",  /* cutoff BIOS version */
+               },
+               { }     /* terminate list */
+       };
+       const struct dmi_system_id *dmi = dmi_first_match(sysids);
+       const char *ver;
+
+       if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2))
+               return false;
+
+       ver = dmi_get_system_info(DMI_BIOS_VERSION);
+
+       return !ver || strcmp(ver, dmi->driver_data) < 0;
+}
+
 static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
        static int printed_version;
@@ -2715,6 +2781,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                        "quirky BIOS, skipping spindown on poweroff\n");
        }
 
+       if (ahci_broken_suspend(pdev)) {
+               hpriv->flags |= AHCI_HFLAG_NO_SUSPEND;
+               dev_printk(KERN_WARNING, &pdev->dev,
+                          "BIOS update required for suspend/resume\n");
+       }
+
        /* CAP.NP sometimes indicate the index of the last enabled
         * port, at other times, that of the last possible port, so
         * determining the maximum port number requires looking at

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index d51a17c0f59b2fa369616bc3c948988ed57d3d26..1aeb7082b0c4e34faecfb1d9f92ae14fbec766ca 100644 (file)
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -1455,6 +1455,15 @@ static bool piix_broken_system_poweroff(struct pci_dev *pdev)
                        /* PCI slot number of the controller */
                        .driver_data = (void *)0x1FUL,
                },
+               {
+                       .ident = "HP Compaq nc6000",
+                       .matches = {
+                               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                               DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nc6000"),
+                       },
+                       /* PCI slot number of the controller */
+                       .driver_data = (void *)0x1FUL,
+               },
 
                { }     /* terminate list */
        };

diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c
index 2085e0a3a05a77a9bfe452de87e613503ca910a1..2a6412f5d117b9c61e66c13380a4045d5877f599 100644 (file)
--- a/drivers/ata/pata_efar.c
+++ b/drivers/ata/pata_efar.c
@@ -22,7 +22,7 @@
 #include <linux/ata.h>
 
 #define DRV_NAME       "pata_efar"
-#define DRV_VERSION    "0.4.4"
+#define DRV_VERSION    "0.4.5"
 
 /**
  *     efar_pre_reset  -       Enable bits
@@ -98,18 +98,17 @@ static void efar_set_piomode (struct ata_port *ap, struct ata_device *adev)
                            { 2, 1 },
                            { 2, 3 }, };
 
-       if (pio > 2)
-               control |= 1;   /* TIME1 enable */
+       if (pio > 1)
+               control |= 1;   /* TIME */
        if (ata_pio_need_iordy(adev))   /* PIO 3/4 require IORDY */
-               control |= 2;   /* IE enable */
-       /* Intel specifies that the PPE functionality is for disk only */
+               control |= 2;   /* IE */
+       /* Intel specifies that the prefetch/posting is for disk only */
        if (adev->class == ATA_DEV_ATA)
-               control |= 4;   /* PPE enable */
+               control |= 4;   /* PPE */
 
        pci_read_config_word(dev, idetm_port, &idetm_data);
 
-       /* Enable PPE, IE and TIME as appropriate */
-
+       /* Set PPE, IE, and TIME as appropriate */
        if (adev->devno == 0) {
                idetm_data &= 0xCCF0;
                idetm_data |= control;
@@ -129,7 +128,7 @@ static void efar_set_piomode (struct ata_port *ap, struct ata_device *adev)
                pci_write_config_byte(dev, 0x44, slave_data);
        }
 
-       idetm_data |= 0x4000;   /* Ensure SITRE is enabled */
+       idetm_data |= 0x4000;   /* Ensure SITRE is set */
        pci_write_config_word(dev, idetm_port, idetm_data);
 }
 

diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index f72c6c5b820f9dbcad9f69f0e08211f98604797d..6932e56d179c8200a86905dbb6040916fc71c7b6 100644 (file)
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -48,6 +48,7 @@
  *
  */
 
+#include <linux/async.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
@@ -1028,6 +1029,7 @@ static __init int legacy_init_one(struct legacy_probe *probe)
                                &legacy_sht);
        if (ret)
                goto fail;
+       async_synchronize_full();
        ld->platform_dev = pdev;
 
        /* Nothing found means we drop the port as its probably not there */