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rtc: ab3100: set range

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The ab3100 has a 48bit counter running at 65536 Hz (despite one of the
comment). The max value is then (2^48 - 1)/2^16 == 2^32 - 1.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Alexandre Belloni 2019-04-09 21:59:43 +02:00
parent 56573ca7ee
commit 386b5941a0
1 changed files with 9 additions and 7 deletions
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16
drivers/rtc/rtc-ab3100.c
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@ -228,15 +228,17 @@ static int __init ab3100_rtc_probe(struct platform_device *pdev)
/* Ignore any error on this write */
}
rtc = devm_rtc_device_register(&pdev->dev, "ab3100-rtc",
&ab3100_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
err = PTR_ERR(rtc);
return err;
}
rtc = devm_rtc_allocate_device(&pdev->dev);
if (IS_ERR(rtc))
return PTR_ERR(rtc);
rtc->ops = &ab3100_rtc_ops;
/* 48bit counter at (AB3100_RTC_CLOCK_RATE * 2) */
rtc->range_max = U32_MAX;
platform_set_drvdata(pdev, rtc);
return 0;
return rtc_register_device(rtc);
}
static struct platform_driver ab3100_rtc_driver = {