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authorDavid S. Miller <davem@davemloft.net>2015-09-26 16:08:27 -0700
committerDavid S. Miller <davem@davemloft.net>2015-09-26 16:08:27 -0700
commit4963ed48f2c20196d51a447ee87dc2815584fee4 (patch)
treea1902f466dafa00453889a4f1e66b00249ce0529 /drivers/watchdog/at91sam9_wdt.c
parent4d54d86546f62c7c4a0fe3b36a64c5e3b98ce1a9 (diff)
parent518a7cb6980cd640c7f979d29021ad870f60d7d7 (diff)
downloadblackbird-obmc-linux-4963ed48f2c20196d51a447ee87dc2815584fee4.tar.gz
blackbird-obmc-linux-4963ed48f2c20196d51a447ee87dc2815584fee4.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: net/ipv4/arp.c The net/ipv4/arp.c conflict was one commit adding a new local variable while another commit was deleting one. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/watchdog/at91sam9_wdt.c')
-rw-r--r--drivers/watchdog/at91sam9_wdt.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index e4698f7c5f93..7e6acaf3ece4 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -17,6 +17,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/clk.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -90,6 +91,7 @@ struct at91wdt {
unsigned long heartbeat; /* WDT heartbeat in jiffies */
bool nowayout;
unsigned int irq;
+ struct clk *sclk;
};
/* ......................................................................... */
@@ -352,15 +354,25 @@ static int __init at91wdt_probe(struct platform_device *pdev)
if (IS_ERR(wdt->base))
return PTR_ERR(wdt->base);
+ wdt->sclk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(wdt->sclk))
+ return PTR_ERR(wdt->sclk);
+
+ err = clk_prepare_enable(wdt->sclk);
+ if (err) {
+ dev_err(&pdev->dev, "Could not enable slow clock\n");
+ return err;
+ }
+
if (pdev->dev.of_node) {
err = of_at91wdt_init(pdev->dev.of_node, wdt);
if (err)
- return err;
+ goto err_clk;
}
err = at91_wdt_init(pdev, wdt);
if (err)
- return err;
+ goto err_clk;
platform_set_drvdata(pdev, wdt);
@@ -368,6 +380,11 @@ static int __init at91wdt_probe(struct platform_device *pdev)
wdt->wdd.timeout, wdt->nowayout);
return 0;
+
+err_clk:
+ clk_disable_unprepare(wdt->sclk);
+
+ return err;
}
static int __exit at91wdt_remove(struct platform_device *pdev)
@@ -377,6 +394,7 @@ static int __exit at91wdt_remove(struct platform_device *pdev)
pr_warn("I quit now, hardware will probably reboot!\n");
del_timer(&wdt->timer);
+ clk_disable_unprepare(wdt->sclk);
return 0;
}
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