libata: add another IRQ calls (libata drivers)

This patch is against each libata driver.

Two IRQ calls are added in ata_port_operations.
- irq_on() is used to enable interrupts.
- irq_ack() is used to acknowledge a device interrupt.

In most drivers, ata_irq_on() and ata_irq_ack() are used for
irq_on and irq_ack respectively.

In some drivers (ex: ahci, sata_sil24) which cannot use them
as is, ata_dummy_irq_on() and ata_dummy_irq_ack() are used.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

60 files changed, 206 insertions, 0 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 6d664849cc09..92cdb0c5171f 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -260,6 +260,8 @@ static const struct ata_port_operations ahci_ops = {
 
 	.irq_handler		= ahci_interrupt,
 	.irq_clear		= ahci_irq_clear,
+	.irq_on			= ata_dummy_irq_on,
+	.irq_ack		= ata_dummy_irq_ack,
 
 	.scr_read		= ahci_scr_read,
 	.scr_write		= ahci_scr_write,
@@ -291,6 +293,8 @@ static const struct ata_port_operations ahci_vt8251_ops = {
 
 	.irq_handler		= ahci_interrupt,
 	.irq_clear		= ahci_irq_clear,
+	.irq_on			= ata_dummy_irq_on,
+	.irq_ack		= ata_dummy_irq_ack,
 
 	.scr_read		= ahci_scr_read,
 	.scr_write		= ahci_scr_write,
diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
index c79887f31841..be66ea08da55 100644
--- a/drivers/ata/ata_generic.c
+++ b/drivers/ata/ata_generic.c
@@ -150,6 +150,8 @@ static struct ata_port_operations generic_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 37fe6c2b8ca2..c528d42ee106 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -308,6 +308,8 @@ static const struct ata_port_operations piix_pata_ops = {
 
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	.port_start		= ata_port_start,
 };
@@ -339,6 +341,8 @@ static const struct ata_port_operations ich_pata_ops = {
 
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	.port_start		= ata_port_start,
 };
@@ -367,6 +371,8 @@ static const struct ata_port_operations piix_sata_ops = {
 
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	.port_start		= ata_port_start,
 };
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index dffa1f539fc9..ab44d18850f6 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -374,6 +374,8 @@ static struct ata_port_operations ali_early_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -413,6 +415,8 @@ static struct ata_port_operations ali_20_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -449,6 +453,8 @@ static struct ata_port_operations ali_c2_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -484,6 +490,8 @@ static struct ata_port_operations ali_c5_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index ed0e4f6fc715..619e44b04032 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -366,6 +366,8 @@ static struct ata_port_operations amd33_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -398,6 +400,8 @@ static struct ata_port_operations amd66_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -430,6 +434,8 @@ static struct ata_port_operations amd100_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -462,6 +468,8 @@ static struct ata_port_operations amd133_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -494,6 +502,8 @@ static struct ata_port_operations nv100_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -526,6 +536,8 @@ static struct ata_port_operations nv133_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
index ace5a98dd59d..21c30282717c 100644
--- a/drivers/ata/pata_artop.c
+++ b/drivers/ata/pata_artop.c
@@ -345,6 +345,8 @@ static const struct ata_port_operations artop6210_ops = {
 
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	.port_start		= ata_port_start,
 };
@@ -375,6 +377,8 @@ static const struct ata_port_operations artop6260_ops = {
 
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	.port_start		= ata_port_start,
 };
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index f89ef7b15999..c3eb40c91c80 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -256,6 +256,8 @@ static struct ata_port_operations atiixp_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 3a75978c1aee..da098282b5f6 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -317,6 +317,8 @@ static struct ata_port_operations cmd64x_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -349,6 +351,8 @@ static struct ata_port_operations cmd646r1_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -381,6 +385,8 @@ static struct ata_port_operations cmd648_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 801a00efa3ee..1ce8fcfd7826 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -197,6 +197,8 @@ static struct ata_port_operations cs5520_port_ops = {
 
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	.port_start		= ata_port_start,
 };
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index b9fd5388b476..3d7b7d87ec6f 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -221,6 +221,8 @@ static struct ata_port_operations cs5530_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c
index 500f863cb987..17bc693cc514 100644
--- a/drivers/ata/pata_cs5535.c
+++ b/drivers/ata/pata_cs5535.c
@@ -218,6 +218,8 @@ static struct ata_port_operations cs5535_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_cypress.c b/drivers/ata/pata_cypress.c
index 4ca103d668ed..63f48f08763d 100644
--- a/drivers/ata/pata_cypress.c
+++ b/drivers/ata/pata_cypress.c
@@ -169,6 +169,8 @@ static struct ata_port_operations cy82c693_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c
index a112dac98dd9..c19b6a8a7dc6 100644
--- a/drivers/ata/pata_efar.c
+++ b/drivers/ata/pata_efar.c
@@ -265,6 +265,8 @@ static const struct ata_port_operations efar_ops = {
 
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	.port_start		= ata_port_start,
 };
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index 819d7a392781..27d724b5eea2 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -365,6 +365,8 @@ static struct ata_port_operations hpt366_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index c6d8774df0de..4ffc392052c0 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -800,6 +800,8 @@ static struct ata_port_operations hpt370_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -837,6 +839,8 @@ static struct ata_port_operations hpt370a_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -875,6 +879,8 @@ static struct ata_port_operations hpt372_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -913,6 +919,8 @@ static struct ata_port_operations hpt374_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c
index b56dc4a7185b..65f2e180e7fa 100644
--- a/drivers/ata/pata_hpt3x2n.c
+++ b/drivers/ata/pata_hpt3x2n.c
@@ -377,6 +377,8 @@ static struct ata_port_operations hpt3x2n_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c
index 46fc417856cc..483ce7c12c9a 100644
--- a/drivers/ata/pata_hpt3x3.c
+++ b/drivers/ata/pata_hpt3x3.c
@@ -152,6 +152,8 @@ static struct ata_port_operations hpt3x3_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
index 4d9ab268cf28..1bf5ec18b2e3 100644
--- a/drivers/ata/pata_isapnp.c
+++ b/drivers/ata/pata_isapnp.c
@@ -57,6 +57,8 @@ static struct ata_port_operations isapnp_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_it8213.c b/drivers/ata/pata_it8213.c
index ec128316903d..7eac869dfcd3 100644
--- a/drivers/ata/pata_it8213.c
+++ b/drivers/ata/pata_it8213.c
@@ -277,6 +277,8 @@ static const struct ata_port_operations it8213_ops = {
 
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	.port_start		= ata_port_start,
 };
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index e8a6e7d73b72..73394c75be42 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -678,6 +678,8 @@ static struct ata_port_operations it821x_smart_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= it821x_port_start,
 };
@@ -712,6 +714,8 @@ static struct ata_port_operations it821x_passthru_port_ops = {
 
 	.irq_clear	= ata_bmdma_irq_clear,
 	.irq_handler	= ata_interrupt,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= it821x_port_start,
 };
diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
index d9ee1837b7ff..3222ac7b945d 100644
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -131,6 +131,8 @@ static struct ata_port_operations ixp4xx_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ixp4xx_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 26365c107818..7a635dd326f8 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -166,6 +166,8 @@ static const struct ata_port_operations jmicron_ops = {
 	/* IRQ-related hooks */
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	/* Generic PATA PCI ATA helpers */
 	.port_start		= ata_port_start,
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index 78b5f7136e1e..4223e10de6a0 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -168,6 +168,8 @@ static struct ata_port_operations simple_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -191,6 +193,8 @@ static struct ata_port_operations legacy_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -301,6 +305,8 @@ static struct ata_port_operations pdc20230_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -351,6 +357,8 @@ static struct ata_port_operations ht6560a_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -412,6 +420,8 @@ static struct ata_port_operations ht6560b_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -528,6 +538,8 @@ static struct ata_port_operations opti82c611a_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
@@ -656,6 +668,8 @@ static struct ata_port_operations opti82c46x_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,
+	.irq_on		= ata_irq_on,
+	.irq_ack	= ata_irq_ack,
 
 	.port_start	= ata_port_start,
 };
diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c
index 586cbb750c99..13a70ac6f1dc 100644
--- a/drivers/ata/pata_marvell.c
+++ b/drivers/ata/pata_marvell.c
@@ -134,6 +134,8 @@ static const struct ata_port_operations marvell_ops = {
 	/* Timeout handling */
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 
 	/* Generic PATA PCI ATA helpers */
 	.port_start		= ata_port_start,
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 8a9d80c3628e..d7378df44970 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -298,6 +298,8 @@ static struct ata_port_operations mpc52xx_ata_port_ops = {
 	.data_xfer		= ata_data_xfer,
 	.irq_handler		= ata_interrupt,
 	.irq_clear		= ata_bmdma_irq_clear,
+	.irq_on			= ata_irq_on,
+	.irq_ack		= ata_irq_ack,
 	.port_start		= ata_port_start,
 };
 
diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c
index 9837faf0f620..976663d1fb22 100644
--- a/drivers/ata/pata_mpiix.c
+++ b/drivers/ata/pata_mpiix.c
@@ -192,6 +192,8 @@ static struct ata_port_operations mpiix_port_ops = {
 
 	.irq_handler	= ata_interrupt,
 	.irq_clear	= ata_bmdma_irq_clear,