rtc-opal.c (58e16d792a6a8c6b750f637a4649967fcac853dc) rtc-opal.c (1bf3e6cce8305638a859f6192635ad73af525d85)
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * IBM OPAL RTC driver
4 * Copyright (C) 2014 IBM
5 */
6
7#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8

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228 .read_time = opal_get_rtc_time,
229 .set_time = opal_set_rtc_time,
230};
231
232static int opal_rtc_probe(struct platform_device *pdev)
233{
234 struct rtc_device *rtc;
235
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * IBM OPAL RTC driver
4 * Copyright (C) 2014 IBM
5 */
6
7#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8

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228 .read_time = opal_get_rtc_time,
229 .set_time = opal_set_rtc_time,
230};
231
232static int opal_rtc_probe(struct platform_device *pdev)
233{
234 struct rtc_device *rtc;
235
236 rtc = devm_rtc_allocate_device(&pdev->dev);
237 if (IS_ERR(rtc))
238 return PTR_ERR(rtc);
239
236 if (pdev->dev.of_node &&
237 (of_property_read_bool(pdev->dev.of_node, "wakeup-source") ||
238 of_property_read_bool(pdev->dev.of_node, "has-tpo")/* legacy */)) {
239 device_set_wakeup_capable(&pdev->dev, true);
240 opal_rtc_ops.read_alarm = opal_get_tpo_time;
241 opal_rtc_ops.set_alarm = opal_set_tpo_time;
242 opal_rtc_ops.alarm_irq_enable = opal_tpo_alarm_irq_enable;
243 }
244
240 if (pdev->dev.of_node &&
241 (of_property_read_bool(pdev->dev.of_node, "wakeup-source") ||
242 of_property_read_bool(pdev->dev.of_node, "has-tpo")/* legacy */)) {
243 device_set_wakeup_capable(&pdev->dev, true);
244 opal_rtc_ops.read_alarm = opal_get_tpo_time;
245 opal_rtc_ops.set_alarm = opal_set_tpo_time;
246 opal_rtc_ops.alarm_irq_enable = opal_tpo_alarm_irq_enable;
247 }
248
245 rtc = devm_rtc_device_register(&pdev->dev, DRVNAME, &opal_rtc_ops,
246 THIS_MODULE);
247 if (IS_ERR(rtc))
248 return PTR_ERR(rtc);
249
249 rtc->ops = &opal_rtc_ops;
250 rtc->range_min = RTC_TIMESTAMP_BEGIN_0000;
251 rtc->range_max = RTC_TIMESTAMP_END_9999;
250 rtc->uie_unsupported = 1;
251
252 rtc->uie_unsupported = 1;
253
252 return 0;
254 return devm_rtc_register_device(rtc);
253}
254
255static const struct of_device_id opal_rtc_match[] = {
256 {
257 .compatible = "ibm,opal-rtc",
258 },
259 { }
260};

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256
257static const struct of_device_id opal_rtc_match[] = {
258 {
259 .compatible = "ibm,opal-rtc",
260 },
261 { }
262};

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