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78ab88f04f
linux/drivers
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Tejun Heo 78ab88f04f libata: improve post-reset device ready test 
Some controllers (jmb and inic162x) use 0x77 and 0x7f to indicate that
the device isn't ready yet.  It looks like they use 0xff if device
presence is detected but connection isn't established.  0x77 or 0x7f
after connection is established and use the value from signature FIS
after receiving it.

This patch implements ata_check_ready(), which takes TF status value
and determines whether the port is ready or not considering the above
and other conditions, and use it in @check_ready() functions.  This is
safe as both 0x77 and 0x7f aren't valid ready status value even though
they have BSY bit cleared.

This fixes hot plug detection failures which can be triggered with
certain drives if they aren't already spun up when the data connector
is hot plugged.

Tested on sil, sil24, ahci (jmb/ich), piix and inic162x combined with
eight drives from all major vendors.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-06 11:32:02 -04:00
..
accessibility Basic braille screen reader support 2008-04-30 08:29:52 -07:00
acorn/char
acpi Fix ACPI vs proc_create_data() mismerge 2008-04-30 16:26:27 -07:00
amba
ata libata: improve post-reset device ready test 2008-05-06 11:32:02 -04:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-30 08:45:48 -07:00
auxdisplay
base cpu: change cpu_sys_devices from array to per_cpu variable 2008-05-01 08:04:02 -07:00
block Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2008-05-02 11:03:08 -07:00
bluetooth hci_usb.h: fix hard-to-trigger race 2008-05-02 16:45:10 -07:00
cdrom Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2008-04-29 08:18:03 -07:00
char m68k: serial167 missing return value in cy_put_char() 2008-05-05 12:37:02 -07:00
clocksource
connector
cpufreq [CPUFREQ] state info wrong after resume 2008-04-28 16:27:08 -04:00
cpuidle
crypto [CRYPTO] padlock-aes: Use generic setkey function 2008-04-21 10:19:34 +08:00
dca
dio
dma DMA engine: typo fixes 2008-04-21 22:38:45 +00:00
edac dev_name introduction fall out fix 2008-05-05 15:08:38 -07:00
eisa
firewire Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-05-02 13:52:35 -07:00
firmware edd: add default mode CONFIG_EDD_OFF=n, override with edd={on,off} 2008-04-29 08:06:23 -07:00
gpio gpio: pca953x: add support for pca9555 I2C I/O expander 2008-05-01 08:04:01 -07:00
hid hid-core: use get_unaligned_* helpers 2008-04-29 08:06:27 -07:00
hwmon Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6 2008-05-01 08:28:26 -07:00
i2c i2c: Convert most new-style drivers to use module aliasing 2008-04-29 23:11:40 +02:00
ide m68k: Fix falconide `data_adr' typo 2008-05-05 12:36:34 -07:00
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2008-05-01 11:31:38 -07:00
infiniband IB/ehca: Fix function return types 2008-05-05 15:51:49 -07:00
input m68k: drivers/input/serio/hp_sdc.c needs <linux/semaphore.h> 2008-05-05 12:37:25 -07:00
isdn isdn: hysdn_procconf.c build fix 2008-05-01 08:03:59 -07:00
leds Remove duplicated unlikely() in IS_ERR() 2008-04-29 08:06:25 -07:00
lguest lguest: make Launcher see device status updates 2008-05-02 21:50:54 +10:00
macintosh [POWERPC] macintosh: ADB driver: adb_handler_sem semaphore to mutex 2008-05-05 16:47:13 +10:00
mca proc: remove proc_root from drivers 2008-04-29 08:06:18 -07:00
md md: support blocking writes to an array on device failure 2008-04-30 08:29:33 -07:00
media fix drivers/media/common/tuners/ build bug 2008-04-30 08:36:04 -07:00
memstick memstick: convert struct class_device to struct device 2008-04-19 19:10:29 -07:00
message Remove duplicated unlikely() in IS_ERR() 2008-04-29 08:06:25 -07:00
mfd drivers: replace remaining __FUNCTION__ occurrences 2008-04-30 08:29:53 -07:00
misc kgdb: 1000 loops for the single step test in kgdbts 2008-05-05 07:13:21 -05:00
mmc Merge master.kernel.org:/home/rmk/linux-2.6-arm 2008-04-29 15:18:06 -07:00
mtd Merge git://git.infradead.org/mtd-2.6 2008-05-01 11:15:28 -07:00
net Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2008-05-05 17:31:41 -07:00
nubus proc: convert /proc/bus/nubus to seq_file interface 2008-04-29 08:06:19 -07:00
of [POWERPC] drivers/of/of_i2c.c: Add MODULE_LICENSE 2008-04-24 20:58:01 +10:00
oprofile oprofile: change cpu_buffer from array to per_cpu variable 2008-04-28 08:58:31 -07:00
parisc parisc: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
parport debugobjects: add timer specific object debugging code 2008-04-30 08:29:53 -07:00
pci x86/pci: remove flag in pci_cfg_space_size_ext 2008-04-29 15:34:05 -07:00
pcmcia pcmcia: replace remaining __FUNCTION__ occurrences 2008-05-01 08:04:00 -07:00
pnp PNP: fix printk format warnings 2008-05-01 08:04:00 -07:00
power Merge git://git.infradead.org/battery-2.6 2008-05-03 10:57:57 -07:00
ps3 [POWERPC] PS3: Remove unsupported wakeup sources 2008-05-02 15:00:44 +10:00
rapidio [RAPIDIO] Auto-probe the RapidIO system size 2008-04-29 19:40:28 +10:00
rtc Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2008-04-30 11:52:52 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-05-02 13:52:35 -07:00
sbus drivers: replace remaining __FUNCTION__ occurrences 2008-04-30 08:29:53 -07:00
scsi CONFIG_SCSI_MAC_ESP needs CONFIG_SCSI_SPI_ATTRS 2008-05-05 12:38:50 -07:00
serial Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2008-05-03 10:05:11 -07:00
sh
sn
spi spi_s3c24xx signedness fix 2008-05-01 08:04:01 -07:00
ssb ssb: Fix all-ones boardflags 2008-04-23 21:25:35 -04:00
tc
telephony
thermal thermal: re-name thermal.c to thermal_sys.c 2008-04-29 03:12:17 -04:00
uio UIO: hold a reference to the device's owner while the device is open 2008-04-19 19:10:18 -07:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-05-02 13:52:35 -07:00
video pxafb: preliminary smart panel interface support (update) 2008-04-30 08:29:32 -07:00
virtio virtio: explicit advertisement of driver features 2008-05-02 21:50:50 +10:00
w1 drivers: replace remaining __FUNCTION__ occurrences 2008-04-30 08:29:53 -07:00
watchdog Convert asm/semaphore.h users to linux/semaphore.h 2008-04-18 22:22:54 -04:00
xen xen: add balloon driver 2008-04-24 23:57:33 +02:00
zorro zorro: use non-racy method for proc entries creation 2008-04-29 08:06:21 -07:00
Kconfig Basic braille screen reader support 2008-04-30 08:29:52 -07:00
Makefile Basic braille screen reader support 2008-04-30 08:29:52 -07:00