[PATCH] Small fixes backported to old IDE SiS driver

Some quick backport bits from the libata PATA work to fix things found in
the sis driver.  The piix driver needs some fixes too but those are way to
large and need someone working on old IDE with time to do them.

This patch fixes the case where random bits get loaded into SIS timing
registers according to the description of the correct behaviour from
Vojtech Pavlik.  It also adds the SiS5517 ATA16 chipset which is not
currently supported by the driver.  Thanks to Conrad Harriss for loaning me
the machine with the 5517 chipset.

Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 3 insertions, 0 deletions

diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index 75a2253a3e68..8e9d87701ce2 100644
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -112,6 +112,7 @@ static const struct {
 
         { "SiS5596",    PCI_DEVICE_ID_SI_5596,  ATA_16   },
         { "SiS5571",    PCI_DEVICE_ID_SI_5571,  ATA_16   },
+        { "SiS5517",    PCI_DEVICE_ID_SI_5517,  ATA_16   },
         { "SiS551x",    PCI_DEVICE_ID_SI_5511,  ATA_16   },
 };
 
@@ -524,6 +525,7 @@ static void config_art_rwp_pio (ide_drive_t *drive, u8 pio)
                         case 3:         test1 = 0x30|0x03; break;
                         case 2:         test1 = 0x40|0x04; break;
                         case 1:         test1 = 0x60|0x07; break;
+                        case 0:         test1 = 0x00; break;
                         default:        break;
                 }
                 pci_write_config_byte(dev, drive_pci, test1);
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 02f6cf20b141..e2ab2ac18d6b 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -642,6 +642,7 @@
 #define PCI_DEVICE_ID_SI_965            0x0965
 #define PCI_DEVICE_ID_SI_5511           0x5511
 #define PCI_DEVICE_ID_SI_5513           0x5513
+#define PCI_DEVICE_ID_SI_5517           0x5517
 #define PCI_DEVICE_ID_SI_5518           0x5518
 #define PCI_DEVICE_ID_SI_5571           0x5571
 #define PCI_DEVICE_ID_SI_5581           0x5581