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-rw-r--r--drivers/ata/ahci.c6
-rw-r--r--drivers/ata/ahci.h7
-rw-r--r--drivers/ata/ahci_qoriq.c2
-rw-r--r--drivers/ata/ahci_xgene.c4
-rw-r--r--drivers/ata/libahci.c20
-rw-r--r--drivers/ata/sata_highbank.c2
6 files changed, 26 insertions, 15 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 1ff17799769d..6389c88b3500 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -698,7 +698,7 @@ static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
DPRINTK("ENTER\n");
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context),
deadline, &online, NULL);
@@ -724,7 +724,7 @@ static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
bool online;
int rc;
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */
ata_tf_init(link->device, &tf);
@@ -788,7 +788,7 @@ static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class,
DPRINTK("ENTER\n");
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
for (i = 0; i < 2; i++) {
u16 val;
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index a9d996e17d75..824bd399f02e 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -365,6 +365,13 @@ struct ahci_host_priv {
* be overridden anytime before the host is activated.
*/
void (*start_engine)(struct ata_port *ap);
+ /*
+ * Optional ahci_stop_engine override, if not set this gets set to the
+ * default ahci_stop_engine during ahci_save_initial_config, this can
+ * be overridden anytime before the host is activated.
+ */
+ int (*stop_engine)(struct ata_port *ap);
+
irqreturn_t (*irq_handler)(int irq, void *dev_instance);
/* only required for per-port MSI(-X) support */
diff --git a/drivers/ata/ahci_qoriq.c b/drivers/ata/ahci_qoriq.c
index 2685f28160f7..cfdef4d44ae9 100644
--- a/drivers/ata/ahci_qoriq.c
+++ b/drivers/ata/ahci_qoriq.c
@@ -96,7 +96,7 @@ static int ahci_qoriq_hardreset(struct ata_link *link, unsigned int *class,
DPRINTK("ENTER\n");
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
/*
* There is a errata on ls1021a Rev1.0 and Rev2.0 which is:
diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index c2b5941d9184..ad58da7c9aff 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -165,7 +165,7 @@ static int xgene_ahci_restart_engine(struct ata_port *ap)
PORT_CMD_ISSUE, 0x0, 1, 100))
return -EBUSY;
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
ahci_start_fis_rx(ap);
/*
@@ -421,7 +421,7 @@ static int xgene_ahci_hardreset(struct ata_link *link, unsigned int *class,
portrxfis_saved = readl(port_mmio + PORT_FIS_ADDR);
portrxfishi_saved = readl(port_mmio + PORT_FIS_ADDR_HI);
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
rc = xgene_ahci_do_hardreset(link, deadline, &online);
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 7adcf3caabd0..e5d90977caec 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -560,6 +560,9 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv)
if (!hpriv->start_engine)
hpriv->start_engine = ahci_start_engine;
+ if (!hpriv->stop_engine)
+ hpriv->stop_engine = ahci_stop_engine;
+
if (!hpriv->irq_handler)
hpriv->irq_handler = ahci_single_level_irq_intr;
}
@@ -897,9 +900,10 @@ static void ahci_start_port(struct ata_port *ap)
static int ahci_deinit_port(struct ata_port *ap, const char **emsg)
{
int rc;
+ struct ahci_host_priv *hpriv = ap->host->private_data;
/* disable DMA */
- rc = ahci_stop_engine(ap);
+ rc = hpriv->stop_engine(ap);
if (rc) {
*emsg = "failed to stop engine";
return rc;
@@ -1310,7 +1314,7 @@ int ahci_kick_engine(struct ata_port *ap)
int busy, rc;
/* stop engine */
- rc = ahci_stop_engine(ap);
+ rc = hpriv->stop_engine(ap);
if (rc)
goto out_restart;
@@ -1549,7 +1553,7 @@ int ahci_do_hardreset(struct ata_link *link, unsigned int *class,
DPRINTK("ENTER\n");
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */
ata_tf_init(link->device, &tf);
@@ -2075,14 +2079,14 @@ void ahci_error_handler(struct ata_port *ap)
if (!(ap->pflags & ATA_PFLAG_FROZEN)) {
/* restart engine */
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
hpriv->start_engine(ap);
}
sata_pmp_error_handler(ap);
if (!ata_dev_enabled(ap->link.device))
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
}
EXPORT_SYMBOL_GPL(ahci_error_handler);
@@ -2129,7 +2133,7 @@ static void ahci_set_aggressive_devslp(struct ata_port *ap, bool sleep)
return;
/* set DITO, MDAT, DETO and enable DevSlp, need to stop engine first */
- rc = ahci_stop_engine(ap);
+ rc = hpriv->stop_engine(ap);
if (rc)
return;
@@ -2189,7 +2193,7 @@ static void ahci_enable_fbs(struct ata_port *ap)
return;
}
- rc = ahci_stop_engine(ap);
+ rc = hpriv->stop_engine(ap);
if (rc)
return;
@@ -2222,7 +2226,7 @@ static void ahci_disable_fbs(struct ata_port *ap)
return;
}
- rc = ahci_stop_engine(ap);
+ rc = hpriv->stop_engine(ap);
if (rc)
return;
diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c
index aafb8cc03523..e67815b896fc 100644
--- a/drivers/ata/sata_highbank.c
+++ b/drivers/ata/sata_highbank.c
@@ -410,7 +410,7 @@ static int ahci_highbank_hardreset(struct ata_link *link, unsigned int *class,
int rc;
int retry = 100;
- ahci_stop_engine(ap);
+ hpriv->stop_engine(ap);
/* clear D2H reception area to properly wait for D2H FIS */
ata_tf_init(link->device, &tf);