From 3af9a77af9e2b72366363864bfcd3d51465ff98a Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sun, 23 Sep 2007 13:19:54 +0900 Subject: libata-pmp: implement Port Multiplier support Implement Port Multiplier support. To support PMP, a LLDD has to supply ops->pmp_read() and pmp_write(). If non-null, ->pmp_attach and ->pmp_detach are called on PMP attach and detach, respectively. ->pmp_read/write() can be called while the port is frozen, so they must be implemented by polling. This patch supplies several helpers to ease ->pmp_read/write() implementation. Also, irq_handler and error_handler must be PMP aware. Most of PMP aware EH can be done by calling ata_pmp_do_eh() with appropriate methods. PMP EH uses separate set of reset methods and this patch implements standard prereset, hardreset and postreset methods. This patch only implements PMP support. The next patch will integrate PMP into the reset of libata and thus enable PMP support. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/ata/Makefile') diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index 56bf13cbd198..7e937519a930 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -71,5 +71,6 @@ obj-$(CONFIG_ATA_GENERIC) += ata_generic.o # Should be last libata driver obj-$(CONFIG_PATA_LEGACY) += pata_legacy.o -libata-objs := libata-core.o libata-scsi.o libata-sff.o libata-eh.o +libata-objs := libata-core.o libata-scsi.o libata-sff.o libata-eh.o \ + libata-pmp.o libata-$(CONFIG_ATA_ACPI) += libata-acpi.o -- cgit v1.2.3