The patch titled
Subject: rtc: omap: clean up probe error handling
has been added to the -mm tree. Its filename is
rtc-omap-clean-up-probe-error-handling.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/rtc-omap-clean-up-probe-error-handling.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/rtc-omap-clean-up-probe-error-handling.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
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------------------------------------------------------
From: Johan Hovold <johan@xxxxxxxxxx>
Subject: 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@xxxxxxxxxx>
Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: Benot Cousson <bcousson@xxxxxxxxxxxx>
Cc: Lokesh Vutla <lokeshvutla@xxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: Sekhar Nori <nsekhar@xxxxxx>
Cc: Tero Kristo <t-kristo@xxxxxx>
Cc: Keerthy J <j-keerthy@xxxxxx>
Cc: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/rtc/rtc-omap.c | 41 +++++++++++++++++----------------------
1 file changed, 18 insertions(+), 23 deletions(-)
diff -puN drivers/rtc/rtc-omap.c~rtc-omap-clean-up-probe-error-handling drivers/rtc/rtc-omap.c
--- a/drivers/rtc/rtc-omap.c~rtc-omap-clean-up-probe-error-handling
+++ a/drivers/rtc/rtc-omap.c
@@ -379,6 +379,7 @@ static int __init omap_rtc_probe(struct
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
}
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
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
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
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)
_
Patches currently in -mm which might be from johan@xxxxxxxxxx are
rtc-omap-fix-clock-source-configuration.patch
rtc-omap-fix-missing-wakealarm-attribute.patch
rtc-omap-fix-interrupt-disable-at-probe.patch
rtc-omap-clean-up-probe-error-handling.patch
rtc-omap-fix-class-device-registration.patch
rtc-omap-remove-unused-register-base-define.patch
rtc-omap-use-dev_info.patch
rtc-omap-make-platform-device-id-table-const.patch
rtc-omap-add-device-abstraction.patch
rtc-omap-remove-driver_name-macro.patch
rtc-omap-add-structured-device-type-info.patch
rtc-omap-silence-bogus-power-up-reset-message-at-probe.patch
rtc-omap-add-helper-to-read-raw-bcd-time.patch
rtc-omap-add-helper-to-read-32-bit-registers.patch
rtc-omap-add-support-for-pmic_power_en.patch
rtc-omap-enable-wake-up-from-power-off.patch
rtc-omap-fix-minor-coding-style-issues.patch
rtc-omap-add-copyright-entry.patch
arm-dts-am33xx-update-rtc-node-compatible-property.patch
arm-dts-am335x-boneblack-enable-power-off-and-rtc-wake-up.patch
linux-next.patch
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