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Thu, 18 Sep 2025 03:53:43 +0000 (GMT) From: "Alim Akhtar" To: "'Sangwook Shin'" , , , , , , Cc: , , , In-Reply-To: <20250818021826.623830-4-sw617.shin@samsung.com> Subject: RE: [PATCH v6 3/5] watchdog: s3c2410_wdt: Increase max timeout value of watchdog Date: Thu, 18 Sep 2025 09:23:41 +0530 Message-ID: <06c501dc284f$d5da8e70$818fab50$@samsung.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQMf0cCJ9LyTM0wh7cHpv36iTCHVmgGBxYoXAhK/QGyx9FUV8A== Content-Language: en-us X-CMS-MailID: 20250918035347epcas5p345d313bce95bf0470d0969ebe30ec80c X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P cpgsPolicy: CPGSC10-542,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20250818022433epcas2p1bf8e6a335be945822721b8db1e9571e9 References: <20250818021826.623830-1-sw617.shin@samsung.com> <20250818021826.623830-4-sw617.shin@samsung.com> Hi Sangwook > -----Original Message----- > From: Sangwook Shin > Sent: Monday, August 18, 2025 7:48 AM > To: krzk=40kernel.org; alim.akhtar=40samsung.com; wim=40linux-watchdog.or= g; > linux=40roeck-us.net; semen.protsenko=40linaro.org; > dongil01.park=40samsung.com; khwan.seo=40samsung.com > Cc: linux-arm-kernel=40lists.infradead.org; linux-samsung-soc=40vger.kern= el.org; > linux-watchdog=40vger.kernel.org; linux-kernel=40vger.kernel.org; Sangwoo= k Shin > > Subject: =5BPATCH v6 3/5=5D watchdog: s3c2410_wdt: Increase max timeout v= alue of > watchdog >=20 > Increase max_timeout value from 55s to 3665038s (1018h 3min 58s) with > 38400000 frequency system if the system has 32-bit WTCNT register. >=20 > cat /sys/class/watchdog/watchdog0/max_timeout > 3665038 >=20 > =5B 0.330082=5D s3c2410-wdt 10060000.watchdog_cl0: Heartbeat: > count=3D1099511400000, timeout=3D3665038, freq=3D300000 > =5B 0.330087=5D s3c2410-wdt 10060000.watchdog_cl0: Heartbeat: > timeout=3D3665038, divisor=3D256, count=3D1099511400000 (fffffc87) > =5B 0.330127=5D s3c2410-wdt 10060000.watchdog_cl0: starting watchdog t= imer > =5B 0.330134=5D s3c2410-wdt 10060000.watchdog_cl0: Starting watchdog: > count=3D0xfffffc87, wtcon=3D0001ff39 > =5B 0.330319=5D s3c2410-wdt 10060000.watchdog_cl0: watchdog active, re= set > enabled, irq disabled >=20 > If the system has a 32-bit WTCNT, add QUIRK_HAS_32BIT_CNT to its quirk fl= ags, > and it will operate with a 32-bit counter. If not, it will operate with a= 16-bit > counter like in the previous version. >=20 > Reviewed-by: Sam Protsenko > Signed-off-by: Sangwook Shin > --- Reviewed-by: Alim Akhtar