Commit 078fdf78 authored Apr 26, 2008 by Bartlomiej Zolnierkiewicz

ide: remove PIO "downgrade" quirk



No need for it nowadays so remove quirk code from ide_get_best_pio_mode()
and IDE_HFLAG_PIO_DOWNGRADE host flag.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

parent 00fe8b7a

drivers/ide/ide-lib.c

+0 −10

Original line number	Diff line number	Diff line
		@@ -274,16 +274,6 @@ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
		if (overridden)
		printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
		drive->name);

		/*
		* Conservative "downgrade" for all pre-ATA2 drives
		*/
		if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_DOWNGRADE) == 0 &&
		pio_mode && pio_mode < 4) {
		pio_mode--;
		printk(KERN_INFO "%s: applying conservative "
		"PIO \"downgrade\"\n", drive->name);
		}
		}

		if (pio_mode > max_mode)

drivers/ide/pci/amd74xx.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -219,7 +219,6 @@ static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)

		#define IDE_HFLAGS_AMD \
		(IDE_HFLAG_PIO_NO_BLACKLIST \| \
		IDE_HFLAG_PIO_NO_DOWNGRADE \| \
		IDE_HFLAG_ABUSE_SET_DMA_MODE \| \
		IDE_HFLAG_POST_SET_MODE \| \
		IDE_HFLAG_IO_32BIT \| \

drivers/ide/pci/via82cxxx.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -429,7 +429,6 @@ static const struct ide_port_info via82cxxx_chipset __devinitdata = {
		.init_hwif = init_hwif_via82cxxx,
		.enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } },
		.host_flags = IDE_HFLAG_PIO_NO_BLACKLIST \|
		IDE_HFLAG_PIO_NO_DOWNGRADE \|
		IDE_HFLAG_ABUSE_SET_DMA_MODE \|
		IDE_HFLAG_POST_SET_MODE \|
		IDE_HFLAG_IO_32BIT,

drivers/ide/ppc/pmac.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -921,7 +921,6 @@ pmac_ide_do_resume(ide_hwif_t *hwif)
		static const struct ide_port_info pmac_port_info = {
		.chipset = ide_pmac,
		.host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA \|
		IDE_HFLAG_PIO_NO_DOWNGRADE \|
		IDE_HFLAG_POST_SET_MODE \|
		IDE_HFLAG_NO_DMA \| /* no SFF-style DMA */
		IDE_HFLAG_UNMASK_IRQS,

include/linux/ide.h

+0 −2

Original line number	Diff line number	Diff line
		@@ -1027,8 +1027,6 @@ enum {
		IDE_HFLAG_SINGLE = (1 << 1),
		/* don't use legacy PIO blacklist */
		IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2),
		/* don't use conservative PIO "downgrade" */
		IDE_HFLAG_PIO_NO_DOWNGRADE = (1 << 3),
		/* use PIO8/9 for prefetch off/on */
		IDE_HFLAG_ABUSE_PREFETCH = (1 << 4),
		/* use PIO6/7 for fast-devsel off/on */