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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2007-11-19 15:34:56 +0100 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2008-01-23 11:24:09 +0100 |
| commit | 76548eda8c47e50260bc87196d40b26ce7a7bcd6 (patch) | |
| tree | 3e5d8e8627a3828e1b729274cfaf01ff13d59668 /drivers/ata/libata-sff.c | |
| parent | libata: IORDY handling (diff) | |
| download | linux-76548eda8c47e50260bc87196d40b26ce7a7bcd6.tar.xz linux-76548eda8c47e50260bc87196d40b26ce7a7bcd6.zip | |
libata-sff: tf_load
Jeff said he preferred that the SFF tf_load followed the spec and we
documented that anyone who needed different overrode it, rather than it
using the ->check_status methods. No driver relies on the current behaviour.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/libata-sff.c')
| -rw-r--r-- | drivers/ata/libata-sff.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index b7ac80b4b1fb..fd5fe4e7e75a 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -147,7 +147,9 @@ void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf) * @tf: ATA taskfile register set for storing input * * Reads ATA taskfile registers for currently-selected device - * into @tf. + * into @tf. Assumes the device has a fully SFF compliant task file + * layout and behaviour. If you device does not (eg has a different + * status method) then you will need to provide a replacement tf_read * * LOCKING: * Inherited from caller. @@ -156,7 +158,7 @@ void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf) { struct ata_ioports *ioaddr = &ap->ioaddr; - tf->command = ata_chk_status(ap); + tf->command = ata_check_status(ap); tf->feature = ioread8(ioaddr->error_addr); tf->nsect = ioread8(ioaddr->nsect_addr); tf->lbal = ioread8(ioaddr->lbal_addr); |