From patchwork Wed Jan 24 12:22:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksij Rempel X-Patchwork-Id: 13529156 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6614C634FC for ; Wed, 24 Jan 2024 12:22:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706098950; cv=none; b=OV3IDmZV+8320RGChtbYsAgEKD3DgbHStpBZAuQho1/q+CLVLyb42waHc+1OrJphMaLn+oiZ3RjDcntKuKbOhgfpz2bPu/0TNINsjLFiQcMhgTzY49dDWdE+rrFpeqWh6szvQ7RtqjWEP5snnioivWEw7Ag+YtMfl7iOZh3Fttk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706098950; c=relaxed/simple; bh=aGoYIr6WP6qwdiccu6/EeWFB5o3ysjwmHOnTwOOjDkQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=gj17KBUjK3Ijbw2LSRYqCyEvKFLMW4Aha0ceClTJ6uPLMvBUkvXjOW7Vk9wIkbiC2cmLYGyURhmDB3JQOlCO8H+xVebBBnC5Nc0gmVw9usIG4Z6f2cpWNLj7PEX7Bj8kH1KCe942KCgaGr9O8oNfKPXLrOymQwoduE+oKePwbIc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rScGd-0007oB-1C; Wed, 24 Jan 2024 13:22:07 +0100 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rScGc-0023Zk-2z; Wed, 24 Jan 2024 13:22:06 +0100 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rScGc-00341u-00; Wed, 24 Jan 2024 13:22:06 +0100 From: Oleksij Rempel To: Sebastian Reichel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Srinivas Kandagatla Cc: Oleksij Rempel , Mark Brown , kernel@pengutronix.de, linux-kernel@vger.kernel.org, Liam Girdwood , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, =?utf-8?q?S=C3=B8ren_Andersen?= Subject: [PATCH v2 7/8] regulator: set Power State Change Reason before hw_protection_shutdown() Date: Wed, 24 Jan 2024 13:22:03 +0100 Message-Id: <20240124122204.730370-8-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240124122204.730370-1-o.rempel@pengutronix.de> References: <20240124122204.730370-1-o.rempel@pengutronix.de> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-pm@vger.kernel.org Store the state change reason to some black box, for later investigation. Signed-off-by: Oleksij Rempel Reviewed-by: Mark Brown --- drivers/regulator/core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index a968dabb48f5..a811a5ff2273 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -5095,6 +5096,7 @@ EXPORT_SYMBOL_GPL(regulator_bulk_free); static void regulator_handle_critical(struct regulator_dev *rdev, unsigned long event) { + enum pscr pscr; const char *reason = NULL; if (!rdev->constraints->system_critical) @@ -5103,17 +5105,21 @@ static void regulator_handle_critical(struct regulator_dev *rdev, switch (event) { case REGULATOR_EVENT_UNDER_VOLTAGE: reason = "System critical regulator: voltage drop detected"; + pscr = PSCR_UNDER_VOLTAGE; break; case REGULATOR_EVENT_OVER_CURRENT: reason = "System critical regulator: over-current detected"; + pscr = PSCR_OVER_CURRENT; break; case REGULATOR_EVENT_FAIL: reason = "System critical regulator: unknown error"; + pscr = PSCR_REGULATOR_FAILURE; } if (!reason) return; + set_power_state_change_reason(pscr); hw_protection_shutdown(reason, rdev->constraints->uv_less_critical_window_ms); }