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devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-watchdog@vger.kernel.org References: <1622981777-5023-1-git-send-email-stefan.wahren@i2se.com> <1622981777-5023-3-git-send-email-stefan.wahren@i2se.com> From: Stefan Wahren Autocrypt: addr=stefan.wahren@i2se.com; keydata= LS0tLS1CRUdJTiBQR1AgUFVCTElDIEtFWSBCTE9DSy0tLS0tClZlcnNpb246IEdudVBHIHYy CgptUUlOQkZ0NmdCTUJFQUN1Yi9wQmV2SHhidkplZnlaRzMySklObW4yYnNFUFgyNVY2ZmVq bXlZd21DR0tqRnRMCi9Eb1VNRVZIRHhDSjQ3Qk1YbzM0NGZIVjFDM0FudWRnTjFCZWhMb0J0 TEh4bW5lQ3pnSDNLY1B0V1c3cHRqNEcKdEp2OUNRRFp5MjdTS29FUHh5YUk4Q0YweWdSeEpj NzJNOUk5d21zUFo1YlVIc0x1WVdNcVE3SmNSbVBzNkQ4ZwpCa2srOC95bmdFeU5FeHd4SnBS MXlsajVianhXREh5WVF2dUo1THpaS3VPOUxCM2xYVnNjNGJxWEVqYzZWRnVaCkZDQ2svc3lp by9ZaHNlOE4rUXN4N01RYWd6NHdLVWtRUWJmWGcxVnFrVG5BaXZYczQyVm5Ja211NWd6SXcv MHQKUkp2NTBGUmhIaHhweUtBSThCOG5oTjhRdng3TVZrUGM1dkRmZDN1R1lXNDdKUGhWUUJj VXdKd05rLzQ5RjllQQp2ZzJtdE1QRm5GT1JrV1VSdlArRzZGSmZtNitDdk92N1lmUDF1ZXdB 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VVBnY0pKTmFHWTIKVklEclpRaTROU2lOUTBOSWkrZGp1NGZOTW1DcFFxZzh0YkMzY0FhNnl3 bTZvUUIxU0JobURYMmUxMWdSbGx1SQpPblRHUEUwSFRvM2w3MmxoYmc9PQo9cVpNVgotLS0t LUVORCBQR1AgUFVCTElDIEtFWSBCTE9DSy0tLS0tCg== Message-ID: Date: Tue, 22 Jun 2021 09:12:30 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <1622981777-5023-3-git-send-email-stefan.wahren@i2se.com> Content-Language: en-US X-Provags-ID: V03:K1:TMbHguoK+A/fVRMlyTacEWepqntbnxMYkwAoA329TpwpoMjEKgT OROreHyncbqnGu74AKbg2/pP5oHhMxbNjOC5LKNKdEFl2oq3UEpa69H4plcSRC/Kfd29tWO ZTYtq/H58w4QVSKd9rHxqSNHHwkKpWQo0d4EuiaLjhRiGeH7JD4aH8VDtuk5uD97MvCwBzX 7S4XMffXgY/GBryG8pzBg== X-UI-Out-Filterresults: notjunk:1;V03:K0:Gbi37pkNGNg=:Zu0f/91SneNgD+YCYKmGWq vc4PBaI4P5Kt1+HpAjEe2e3I/nmDofkLSTgU98SNT5xlM+wMkwRY1xPV5GgencdbxWuOC9Znt 4NgH3riH6NNK86TGVXS5GbhwjOn6gGBtE8Ke93dkE6VIYrzV2cTGJxUi5tT/pRZuhw4wS3y46 uvrLE37u+CvAf+fDUXp9oV2wx2OpkKvq5ac1GVa33Ir7xFFAe8bzkGmUIvQfsQ84fNhTvjjww 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Raspberry Pi 400 uses gpio-poweroff for the whole board which > possibly cannot register the poweroff handler because the it's > already registered by this watchdog driver. So consider the > system-power-controller property for registering, which is already > defined in soc/bcm/brcm,bcm2835-pm.txt . > > Signed-off-by: Stefan Wahren > Reviewed-by: Nicolas Saenz Julienne > Reviewed-by: Guenter Roeck > --- > drivers/watchdog/bcm2835_wdt.c | 10 +++++++--- > 1 file changed, 7 insertions(+), 3 deletions(-) > > diff --git a/drivers/watchdog/bcm2835_wdt.c b/drivers/watchdog/bcm2835_wdt.c > index dec6ca0..9490717 100644 > --- a/drivers/watchdog/bcm2835_wdt.c > +++ b/drivers/watchdog/bcm2835_wdt.c > @@ -205,9 +205,13 @@ static int bcm2835_wdt_probe(struct platform_device *pdev) > if (err) > return err; > > - if (pm_power_off == NULL) { > - pm_power_off = bcm2835_power_off; > - bcm2835_power_off_wdt = wdt; > + if (of_device_is_system_power_controller(pdev->dev.parent->of_node)) { > + if (!pm_power_off) { > + pm_power_off = bcm2835_power_off; > + bcm2835_power_off_wdt = wdt; > + } else { > + dev_info(dev, "Poweroff handler already present!\n"); > + } > } > > dev_info(dev, "Broadcom BCM2835 watchdog timer"); this isn't not applied yet. Can this go via the watchdog-next tree into 5.14? Best regards Stefan _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel