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Subject[PATCH 2/4] Blackfin EMAC driver: add power management interface and change the bf537mac_reset to bf537mac_disable
From
Date

Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
---
drivers/net/bfin_mac.c | 23 +++++++++++++++++++----
1 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
index ead7be9..5cb4433 100644
--- a/drivers/net/bfin_mac.c
+++ b/drivers/net/bfin_mac.c
@@ -672,7 +672,7 @@ static void bf537mac_poll(struct net_device *dev)
}
#endif /* CONFIG_NET_POLL_CONTROLLER */

-static void bf537mac_reset(void)
+static void bf537mac_disable(void)
{
unsigned int opmode;

@@ -730,7 +730,7 @@ static void bf537mac_timeout(struct net_device *dev)
{
pr_debug("%s: %s\n", dev->name, __FUNCTION__);

- bf537mac_reset();
+ bf537mac_disable();

/* reset tx queue */
tx_list_tail = tx_list_head->next;
@@ -810,7 +810,7 @@ static int bf537mac_open(struct net_device *dev)

bf537mac_setphy(dev);
setup_system_regs(dev);
- bf537mac_reset();
+ bf537mac_disable();
bf537mac_enable(dev);

pr_debug("hardware init finished\n");
@@ -968,15 +968,30 @@ static int bfin_mac_remove(struct platform_device *pdev)
return 0;
}

-static int bfin_mac_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM
+static int bfin_mac_suspend(struct platform_device *pdev, pm_message_t mesg)
{
+ struct net_device *net_dev = platform_get_drvdata(pdev);
+
+ if (netif_running(net_dev))
+ bf537mac_close(net_dev);
+
return 0;
}

static int bfin_mac_resume(struct platform_device *pdev)
{
+ struct net_device *net_dev = platform_get_drvdata(pdev);
+
+ if (netif_running(net_dev))
+ bf537mac_open(net_dev);
+
return 0;
}
+#else
+#define bfin_mac_suspend NULL
+#define bfin_mac_resume NULL
+#endif /* CONFIG_PM */

static struct platform_driver bfin_mac_driver = {
.probe = bfin_mac_probe,
--
1.5.2
-
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