linux-kernel - [PATCH] mailbox: imx: Add support for identifying SCU wakeup source from sysfs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20230712034755.2676008-1-peng.fan@oss.nxp.com>
Date:   Wed, 12 Jul 2023 11:47:55 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     jassisinghbrar@...il.com, shawnguo@...nel.org,
        s.hauer@...gutronix.de
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Peng Fan <peng.fan@....com>,
        Ranjani Vaidyanathan <ranjani.vaidyanathan@....com>
Subject: [PATCH] mailbox: imx: Add support for identifying SCU wakeup source from sysfs

From: Peng Fan <peng.fan@....com>

Record SCU wakeup interrupt in /sys/power/pm_wakeup_irq by using
pm_system_wakeup_irq

Signed-off-by: Ranjani Vaidyanathan <ranjani.vaidyanathan@....com>
Signed-off-by: Peng Fan <peng.fan@....com>
---
 drivers/mailbox/imx-mailbox.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c
index 20f2ec880ad6..0719b9cfba97 100644
--- a/drivers/mailbox/imx-mailbox.c
+++ b/drivers/mailbox/imx-mailbox.c
@@ -531,8 +531,12 @@ static irqreturn_t imx_mu_isr(int irq, void *p)
 		return IRQ_NONE;
 	}
 
-	if (priv->suspend)
-		pm_system_wakeup();
+	if (priv->suspend) {
+		if (priv->dcfg->type & IMX_MU_V2_IRQ)
+			pm_system_wakeup();
+		else
+			pm_system_irq_wakeup(priv->irq[0]);
+	}
 
 	return IRQ_HANDLED;
 }
-- 
2.37.1