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authorJohan Hovold <johan@kernel.org>2014-12-10 15:52:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 17:41:13 -0800
commit437b37a66a224471b669e9d3c791e908e47e804d (patch)
treef5b5334494c61d7d8adccd6e8c47982e36a492e5 /drivers/rtc/rtc-omap.c
parent1ed8b5d26c33d5c95845be7d51aae2bf6f1b053c (diff)
downloadlinux-437b37a66a224471b669e9d3c791e908e47e804d.tar.bz2
rtc: omap: clean up probe error handling
Remove some debug messages and return errors from subsystems rather than always fail with -EIO. Note that the class-registration error has already been logged by rtc core. Signed-off-by: Johan Hovold <johan@kernel.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Tony Lindgren <tony@atomide.com> Cc: Benot Cousson <bcousson@baylibre.com> Cc: Lokesh Vutla <lokeshvutla@ti.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Cc: Keerthy J <j-keerthy@ti.com> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-omap.c')
-rw-r--r--drivers/rtc/rtc-omap.c41
1 files changed, 18 insertions, 23 deletions
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 813d475fe7c6..6b10db5a5702 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -379,6 +379,7 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
u8 reg, new_ctrl;
const struct platform_device_id *id_entry;
const struct of_device_id *of_id;
+ int ret;
of_id = of_match_device(omap_rtc_of_match, &pdev->dev);
if (of_id)
@@ -391,16 +392,12 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
}
omap_rtc_timer = platform_get_irq(pdev, 0);
- if (omap_rtc_timer <= 0) {
- pr_debug("%s: no update irq?\n", pdev->name);
+ if (omap_rtc_timer <= 0)
return -ENOENT;
- }
omap_rtc_alarm = platform_get_irq(pdev, 1);
- if (omap_rtc_alarm <= 0) {
- pr_debug("%s: no alarm irq?\n", pdev->name);
+ if (omap_rtc_alarm <= 0)
return -ENOENT;
- }
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
rtc_base = devm_ioremap_resource(&pdev->dev, res);
@@ -421,9 +418,8 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
&omap_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
- pr_debug("%s: can't register RTC device, err %ld\n",
- pdev->name, PTR_ERR(rtc));
- goto fail0;
+ ret = PTR_ERR(rtc);
+ goto err;
}
platform_set_drvdata(pdev, rtc);
@@ -451,18 +447,16 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
rtc_write(OMAP_RTC_STATUS_ALARM, OMAP_RTC_STATUS_REG);
/* handle periodic and alarm irqs */
- if (devm_request_irq(&pdev->dev, omap_rtc_timer, rtc_irq, 0,
- dev_name(&rtc->dev), rtc)) {
- pr_debug("%s: RTC timer interrupt IRQ%d already claimed\n",
- pdev->name, omap_rtc_timer);
- goto fail0;
- }
- if ((omap_rtc_timer != omap_rtc_alarm) &&
- (devm_request_irq(&pdev->dev, omap_rtc_alarm, rtc_irq, 0,
- dev_name(&rtc->dev), rtc))) {
- pr_debug("%s: RTC alarm interrupt IRQ%d already claimed\n",
- pdev->name, omap_rtc_alarm);
- goto fail0;
+ ret = devm_request_irq(&pdev->dev, omap_rtc_timer, rtc_irq, 0,
+ dev_name(&rtc->dev), rtc);
+ if (ret)
+ goto err;
+
+ if (omap_rtc_timer != omap_rtc_alarm) {
+ ret = devm_request_irq(&pdev->dev, omap_rtc_alarm, rtc_irq, 0,
+ dev_name(&rtc->dev), rtc);
+ if (ret)
+ goto err;
}
/* On boards with split power, RTC_ON_NOFF won't reset the RTC */
@@ -496,13 +490,14 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
return 0;
-fail0:
+err:
device_init_wakeup(&pdev->dev, false);
if (id_entry->driver_data & OMAP_RTC_HAS_KICKER)
rtc_writel(0, OMAP_RTC_KICK0_REG);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
- return -EIO;
+
+ return ret;
}
static int __exit omap_rtc_remove(struct platform_device *pdev)