Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0c8de52d76e4bec6e9168b47be29f11b3bb92768
Commit:     0c8de52d76e4bec6e9168b47be29f11b3bb92768
Parent:     8b6b33be3280fd776335079124ecd176e6a40797
Author:     Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>
AuthorDate: Wed Aug 1 23:46:46 2007 +0200
Committer:  Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>
CommitDate: Wed Aug 1 23:46:46 2007 +0200

    piix/slc90e66: fix PIO1 handling in ->speedproc method (take 2)
    
    * Don't call {piix,slc90e66}_dma_2_pio() for PIO modes in
      {piix,slc90e66}_tune_chipset().
    
    * Add PIO1 handling to {piix,slc90e66}_tune_chipset().
    
    * Bump driver version.
    
    v2:
    * Remove PIO modes from {piix,slc90e66}_dma_2_pio(), they are no longer 
needed
      there (Noticed by Sergei)
    
    Acked-by: Sergei Shtylyov <[EMAIL PROTECTED]>
    Signed-off-by: Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>
---
 drivers/ide/pci/piix.c     |   17 ++++++++---------
 drivers/ide/pci/slc90e66.c |   15 +++++++--------
 2 files changed, 15 insertions(+), 17 deletions(-)

diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
index 4f69cd0..5cfa937 100644
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -1,5 +1,5 @@
 /*
- *  linux/drivers/ide/pci/piix.c       Version 0.50    Jun 10, 2007
+ *  linux/drivers/ide/pci/piix.c       Version 0.51    Jul 6, 2007
  *
  *  Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer
  *  Copyright (C) 1998-2000 Andre Hedrick <[EMAIL PROTECTED]>
@@ -109,7 +109,7 @@ static int no_piix_dma;
  *     piix_dma_2_pio          -       return the PIO mode matching DMA
  *     @xfer_rate: transfer speed
  *
- *     Returns the nearest equivalent PIO timing for the PIO or DMA
+ *     Returns the nearest equivalent PIO timing for the DMA
  *     mode requested by the controller.
  */
  
@@ -123,20 +123,14 @@ static u8 piix_dma_2_pio (u8 xfer_rate) {
                case XFER_UDMA_1:
                case XFER_UDMA_0:
                case XFER_MW_DMA_2:
-               case XFER_PIO_4:
                        return 4;
                case XFER_MW_DMA_1:
-               case XFER_PIO_3:
                        return 3;
                case XFER_SW_DMA_2:
-               case XFER_PIO_2:
                        return 2;
                case XFER_MW_DMA_0:
                case XFER_SW_DMA_1:
                case XFER_SW_DMA_0:
-               case XFER_PIO_1:
-               case XFER_PIO_0:
-               case XFER_PIO_SLOW:
                default:
                        return 0;
        }
@@ -269,6 +263,7 @@ static int piix_tune_chipset (ide_drive_t *drive, u8 
xferspeed)
                case XFER_PIO_4:
                case XFER_PIO_3:
                case XFER_PIO_2:
+               case XFER_PIO_1:
                case XFER_PIO_0:        break;
                default:                return -1;
        }
@@ -299,7 +294,11 @@ static int piix_tune_chipset (ide_drive_t *drive, u8 
xferspeed)
                        pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
        }
 
-       piix_tune_pio(drive, piix_dma_2_pio(speed));
+       if (speed > XFER_PIO_4)
+               piix_tune_pio(drive, piix_dma_2_pio(speed));
+       else
+               piix_tune_pio(drive, speed - XFER_PIO_0);
+
        return ide_config_drive_speed(drive, speed);
 }
 
diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c
index 8e655f2..628b066 100644
--- a/drivers/ide/pci/slc90e66.c
+++ b/drivers/ide/pci/slc90e66.c
@@ -1,5 +1,5 @@
 /*
- *  linux/drivers/ide/pci/slc90e66.c   Version 0.14    February 8, 2007
+ *  linux/drivers/ide/pci/slc90e66.c   Version 0.15    Jul 6, 2007
  *
  *  Copyright (C) 2000-2002 Andre Hedrick <[EMAIL PROTECTED]>
  *  Copyright (C) 2006-2007 MontaVista Software, Inc. <[EMAIL PROTECTED]>
@@ -29,20 +29,14 @@ static u8 slc90e66_dma_2_pio (u8 xfer_rate) {
                case XFER_UDMA_1:
                case XFER_UDMA_0:
                case XFER_MW_DMA_2:
-               case XFER_PIO_4:
                        return 4;
                case XFER_MW_DMA_1:
-               case XFER_PIO_3:
                        return 3;
                case XFER_SW_DMA_2:
-               case XFER_PIO_2:
                        return 2;
                case XFER_MW_DMA_0:
                case XFER_SW_DMA_1:
                case XFER_SW_DMA_0:
-               case XFER_PIO_1:
-               case XFER_PIO_0:
-               case XFER_PIO_SLOW:
                default:
                        return 0;
        }
@@ -136,6 +130,7 @@ static int slc90e66_tune_chipset (ide_drive_t *drive, u8 
xferspeed)
                case XFER_PIO_4:
                case XFER_PIO_3:
                case XFER_PIO_2:
+               case XFER_PIO_1:
                case XFER_PIO_0:        break;
                default:                return -1;
        }
@@ -156,7 +151,11 @@ static int slc90e66_tune_chipset (ide_drive_t *drive, u8 
xferspeed)
                        pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
        }
 
-       slc90e66_tune_pio(drive, slc90e66_dma_2_pio(speed));
+       if (speed > XFER_PIO_4)
+               slc90e66_tune_pio(drive, slc90e66_dma_2_pio(speed));
+       else
+               slc90e66_tune_pio(drive, speed - XFER_PIO_0);
+
        return ide_config_drive_speed(drive, speed);
 }
 
-
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