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Mon, 10 Jun 2024 15:00:55 +0300 From: George Stark To: , CC: , , , George Stark Subject: [PATCH 1/1] regulator: core: add warning for not-recoverable state Date: Mon, 10 Jun 2024 15:00:25 +0300 Message-ID: <20240610120025.405062-2-gnstark@salutedevices.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240610120025.405062-1-gnstark@salutedevices.com> References: <20240610120025.405062-1-gnstark@salutedevices.com> MIME-Version: 1.0 X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) To p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 185831 [Jun 10 2024] X-KSMG-AntiSpam-Version: 6.1.0.4 X-KSMG-AntiSpam-Envelope-From: gnstark@salutedevices.com X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 20 0.3.20 743589a8af6ec90b529f2124c2bbfc3ce1d2f20f, {Tracking_from_domain_doesnt_match_to}, 100.64.160.123:7.1.2;salutedevices.com:7.1.1;smtp.sberdevices.ru:5.0.1,7.1.1;127.0.0.199:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1, FromAlignment: s, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2024/06/10 11:09:00 #25535815 X-KSMG-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240610_050100_563846_90707B2A X-CRM114-Status: GOOD ( 13.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org If regulator is always-on or boot-on then it's expected to be on while being probed so add warning if such a regulator is in not-recoverable state during initialization. Signed-off-by: George Stark --- drivers/regulator/core.c | 4 ++++ 1 file changed, 4 insertions(+) -- 2.25.1 diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index a968dabb48f5..133789eb3d71 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1251,6 +1251,10 @@ static int machine_constraints_voltage(struct regulator_dev *rdev, int current_uV = regulator_get_voltage_rdev(rdev); if (current_uV == -ENOTRECOVERABLE) { + if (rdev->constraints->always_on || rdev->constraints->boot_on) + rdev_warn(rdev, + "boot-on / always-on regulator is in not-recoverable state\n"); + /* This regulator can't be read and must be initialized */ rdev_info(rdev, "Setting %d-%duV\n", rdev->constraints->min_uV,