ata: Export required functions by APM X-Gene SATA driver
This patch exports functions required by APM X-Gene SoC SATA host
controller driver to avoid duplication of code.
Signed-off-by: Loc Ho <lho@xxxxxxx>
Signed-off-by: Tuan Phan <tphan@xxxxxxx>
Signed-off-by: Suman Tripathi <stripathi@xxxxxxx>
Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>
Reviewed-by: Olof Johansson <olof@xxxxxxxxx>
---
drivers/ata/ahci.h | 6 ++++++
drivers/ata/libahci.c | 13 ++++++++-----
2 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 1145637..cf881e0 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -368,6 +368,12 @@ irqreturn_t ahci_hw_interrupt(int irq, void *dev_instance);
irqreturn_t ahci_thread_fn(int irq, void *dev_instance);
void ahci_print_info(struct ata_host *host, const char *scc_s);
int ahci_host_activate(struct ata_host *host, int irq, unsigned int n_msis);
+void ahci_sw_activity(struct ata_link *link);
+int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
+void ahci_error_intr(struct ata_port *ap, u32 irq_stat);
+int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
+ struct ata_taskfile *tf, int is_cmd, u16 flags,
+ unsigned long timeout_msec);
static inline void __iomem *__ahci_port_base(struct ata_host *host,
unsigned int port_no)
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index aaac4fb..de7e074 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -68,7 +68,6 @@ static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
static int ahci_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
-static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
static unsigned int ahci_qc_issue(struct ata_queued_cmd *qc);
static bool ahci_qc_fill_rtf(struct ata_queued_cmd *qc);
static int ahci_port_start(struct ata_port *ap);
@@ -553,7 +552,7 @@ static int ahci_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val)
return -EINVAL;
}
-static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
+int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
{
void __iomem *port_mmio = ahci_port_base(link->ap);
int offset = ahci_scr_offset(link->ap, sc_reg);
@@ -564,6 +563,7 @@ static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
}
return -EINVAL;
}
+EXPORT_SYMBOL_GPL(ahci_scr_write);
void ahci_start_engine(struct ata_port *ap)
{
@@ -869,7 +869,7 @@ int ahci_reset_controller(struct ata_host *host)
}
EXPORT_SYMBOL_GPL(ahci_reset_controller);
-static void ahci_sw_activity(struct ata_link *link)
+void ahci_sw_activity(struct ata_link *link)
{
struct ata_port *ap = link->ap;
struct ahci_port_priv *pp = ap->private_data;
@@ -882,6 +882,7 @@ static void ahci_sw_activity(struct ata_link *link)
if (!timer_pending(&emp->timer))
mod_timer(&emp->timer, jiffies + msecs_to_jiffies(10));
}
+EXPORT_SYMBOL_GPL(ahci_sw_activity);
static void ahci_sw_activity_blink(unsigned long arg)
{
@@ -1239,7 +1240,7 @@ int ahci_kick_engine(struct ata_port *ap)
}
EXPORT_SYMBOL_GPL(ahci_kick_engine);
-static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
+int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
struct ata_taskfile *tf, int is_cmd, u16 flags,
unsigned long timeout_msec)
{
@@ -1268,6 +1269,7 @@ static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
return 0;
}
+EXPORT_SYMBOL_GPL(ahci_exec_polled_cmd);
int ahci_do_softreset(struct ata_link *link, unsigned int *class,
int pmp, unsigned long deadline,
@@ -1552,7 +1554,7 @@ static void ahci_fbs_dec_intr(struct ata_port *ap)
dev_err(ap->host->dev, "failed to clear device error\n");
}
-static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
+void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
{
struct ahci_host_priv *hpriv = ap->host->private_data;
struct ahci_port_priv *pp = ap->private_data;
@@ -1662,6 +1664,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
} else
ata_port_abort(ap);
}
+EXPORT_SYMBOL_GPL(ahci_error_intr);
static void ahci_handle_port_interrupt(struct ata_port *ap,
void __iomem *port_mmio, u32 status)
--
1.5.5
--
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