From: Biju Das <biju.das.jz@bp.renesas.com>
To: Alessandro Zummo <a.zummo@towertech.it>,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
Support Opensource <support.opensource@diasemi.com>,
linux-rtc@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>,
Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>,
Biju Das <biju.das.au@gmail.com>,
linux-renesas-soc@vger.kernel.org
Subject: [PATCH v2 1/3] rtc: da9063: Make IRQ as optional
Date: Mon, 4 Dec 2023 13:05:02 +0000 [thread overview]
Message-ID: <20231204130504.126787-2-biju.das.jz@bp.renesas.com> (raw)
In-Reply-To: <20231204130504.126787-1-biju.das.jz@bp.renesas.com>
On some platforms (eg: RZ/{G2UL,Five} SMARC EVK), there is no IRQ
populated by default. Add irq optional support.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
drivers/rtc/rtc-da9063.c | 41 ++++++++++++++++++++++------------------
1 file changed, 23 insertions(+), 18 deletions(-)
diff --git a/drivers/rtc/rtc-da9063.c b/drivers/rtc/rtc-da9063.c
index 2f5d60622564..884a89993eed 100644
--- a/drivers/rtc/rtc-da9063.c
+++ b/drivers/rtc/rtc-da9063.c
@@ -485,25 +485,30 @@ static int da9063_rtc_probe(struct platform_device *pdev)
clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->rtc_dev->features);
}
- irq_alarm = platform_get_irq_byname(pdev, "ALARM");
- if (irq_alarm < 0)
+ irq_alarm = platform_get_irq_byname_optional(pdev, "ALARM");
+ if (irq_alarm >= 0) {
+ ret = devm_request_threaded_irq(&pdev->dev, irq_alarm, NULL,
+ da9063_alarm_event,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "ALARM", rtc);
+ if (ret)
+ dev_err(&pdev->dev,
+ "Failed to request ALARM IRQ %d: %d\n",
+ irq_alarm, ret);
+
+ ret = dev_pm_set_wake_irq(&pdev->dev, irq_alarm);
+ if (ret)
+ dev_warn(&pdev->dev,
+ "Failed to set IRQ %d as a wake IRQ: %d\n",
+ irq_alarm, ret);
+
+ device_init_wakeup(&pdev->dev, true);
+ } else if (irq_alarm != -ENXIO) {
return irq_alarm;
-
- ret = devm_request_threaded_irq(&pdev->dev, irq_alarm, NULL,
- da9063_alarm_event,
- IRQF_TRIGGER_LOW | IRQF_ONESHOT,
- "ALARM", rtc);
- if (ret)
- dev_err(&pdev->dev, "Failed to request ALARM IRQ %d: %d\n",
- irq_alarm, ret);
-
- ret = dev_pm_set_wake_irq(&pdev->dev, irq_alarm);
- if (ret)
- dev_warn(&pdev->dev,
- "Failed to set IRQ %d as a wake IRQ: %d\n",
- irq_alarm, ret);
-
- device_init_wakeup(&pdev->dev, true);
+ } else {
+ clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->rtc_dev->features);
+ clear_bit(RTC_FEATURE_ALARM, rtc->rtc_dev->features);
+ }
return devm_rtc_register_device(rtc->rtc_dev);
}
--
2.25.1
next prev parent reply other threads:[~2023-12-04 13:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-04 13:05 [PATCH v2 0/3] rtc: da9063: Make IRQ as optional Biju Das
2023-12-04 13:05 ` Biju Das [this message]
2023-12-04 13:25 ` [PATCH v2 1/3] " Geert Uytterhoeven
2023-12-04 13:05 ` [PATCH v2 2/3] rtc: da9063: Use device_get_match_data() Biju Das
2023-12-04 13:05 ` [PATCH v2 3/3] rtc: da9063: Use dev_err_probe() Biju Das
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