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rtc: opal: constify opal_rtc_ops

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Use RTC_FEATURE_ALARM to signal to the core whether alarms are available
instead of changing the global struct rtc_class_ops, allowing to make it
const.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-13-alexandre.belloni@bootlin.com
This commit is contained in:
Alexandre Belloni 2021-01-11 00:17:47 +01:00
parent 3948a86682
commit 50f97e919f
1 changed files with 7 additions and 6 deletions
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13
drivers/rtc/rtc-opal.c
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@ -224,9 +224,12 @@ static int opal_tpo_alarm_irq_enable(struct device *dev, unsigned int enabled)
return enabled ? 0 : opal_set_tpo_time(dev, &alarm);
}
static struct rtc_class_ops opal_rtc_ops = {
static const struct rtc_class_ops opal_rtc_ops = {
.read_time = opal_get_rtc_time,
.set_time = opal_set_rtc_time,
.read_alarm = opal_get_tpo_time,
.set_alarm = opal_set_tpo_time,
.alarm_irq_enable = opal_tpo_alarm_irq_enable,
};
static int opal_rtc_probe(struct platform_device *pdev)
@ -239,12 +242,10 @@ static int opal_rtc_probe(struct platform_device *pdev)
if (pdev->dev.of_node &&
(of_property_read_bool(pdev->dev.of_node, "wakeup-source") ||
of_property_read_bool(pdev->dev.of_node, "has-tpo")/* legacy */)) {
of_property_read_bool(pdev->dev.of_node, "has-tpo")/* legacy */))
device_set_wakeup_capable(&pdev->dev, true);
opal_rtc_ops.read_alarm = opal_get_tpo_time;
opal_rtc_ops.set_alarm = opal_set_tpo_time;
opal_rtc_ops.alarm_irq_enable = opal_tpo_alarm_irq_enable;
}
else
clear_bit(RTC_FEATURE_ALARM, rtc->features);
rtc->ops = &opal_rtc_ops;
rtc->range_min = RTC_TIMESTAMP_BEGIN_0000;