Commit 76548eda authored by Alan Cox's avatar Alan Cox Committed by Jeff Garzik

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: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent b9f8ab2d
...@@ -147,7 +147,9 @@ void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf) ...@@ -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 * @tf: ATA taskfile register set for storing input
* *
* Reads ATA taskfile registers for currently-selected device * 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: * LOCKING:
* Inherited from caller. * Inherited from caller.
...@@ -156,7 +158,7 @@ void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf) ...@@ -156,7 +158,7 @@ void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
{ {
struct ata_ioports *ioaddr = &ap->ioaddr; 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->feature = ioread8(ioaddr->error_addr);
tf->nsect = ioread8(ioaddr->nsect_addr); tf->nsect = ioread8(ioaddr->nsect_addr);
tf->lbal = ioread8(ioaddr->lbal_addr); tf->lbal = ioread8(ioaddr->lbal_addr);
......
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