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From: Frank Li <Frank.Li@nxp.com>
To: "Rafael J. Wysocki" <rafael@kernel.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Amit Kucheria <amitk@kernel.org>, Zhang Rui <rui.zhang@intel.com>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-pm@vger.kernel.org (open list:THERMAL),
	linux-arm-kernel@lists.infradead.org (moderated
	list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
	linux-kernel@vger.kernel.org (open list)
Cc: imx@lists.linux.dev
Subject: [PATCH 1/1] thermal/drivers/imx_sc_thermal: return -EAGAIN when SCFW turn off resource
Date: Wed, 12 Jul 2023 17:05:04 -0400	[thread overview]
Message-ID: <20230712210505.1536416-1-Frank.Li@nxp.com> (raw)

Avoid endless print following message when SCFW turns off resource.
 [ 1818.342337] thermal thermal_zone0: failed to read out thermal zone (-1)

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 drivers/thermal/imx_sc_thermal.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c
index 8d6b4ef23746..0533d58f199f 100644
--- a/drivers/thermal/imx_sc_thermal.c
+++ b/drivers/thermal/imx_sc_thermal.c
@@ -58,7 +58,9 @@ static int imx_sc_thermal_get_temp(struct thermal_zone_device *tz, int *temp)
 	hdr->size = 2;
 
 	ret = imx_scu_call_rpc(thermal_ipc_handle, &msg, true);
-	if (ret)
+	if (ret == -EPERM) /* NO POWER */
+		return -EAGAIN;
+	else if (ret)
 		return ret;
 
 	*temp = msg.data.resp.celsius * 1000 + msg.data.resp.tenths * 100;
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Frank Li <Frank.Li@nxp.com>
To: "Rafael J. Wysocki" <rafael@kernel.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Amit Kucheria <amitk@kernel.org>, Zhang Rui <rui.zhang@intel.com>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-pm@vger.kernel.org (open list:THERMAL),
	linux-arm-kernel@lists.infradead.org (moderated
	list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
	linux-kernel@vger.kernel.org (open list)
Cc: imx@lists.linux.dev
Subject: [PATCH 1/1] thermal/drivers/imx_sc_thermal: return -EAGAIN when SCFW turn off resource
Date: Wed, 12 Jul 2023 17:05:04 -0400	[thread overview]
Message-ID: <20230712210505.1536416-1-Frank.Li@nxp.com> (raw)

Avoid endless print following message when SCFW turns off resource.
 [ 1818.342337] thermal thermal_zone0: failed to read out thermal zone (-1)

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 drivers/thermal/imx_sc_thermal.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c
index 8d6b4ef23746..0533d58f199f 100644
--- a/drivers/thermal/imx_sc_thermal.c
+++ b/drivers/thermal/imx_sc_thermal.c
@@ -58,7 +58,9 @@ static int imx_sc_thermal_get_temp(struct thermal_zone_device *tz, int *temp)
 	hdr->size = 2;
 
 	ret = imx_scu_call_rpc(thermal_ipc_handle, &msg, true);
-	if (ret)
+	if (ret == -EPERM) /* NO POWER */
+		return -EAGAIN;
+	else if (ret)
 		return ret;
 
 	*temp = msg.data.resp.celsius * 1000 + msg.data.resp.tenths * 100;
-- 
2.34.1


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             reply	other threads:[~2023-07-12 21:05 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-12 21:05 Frank Li [this message]
2023-07-12 21:05 ` [PATCH 1/1] thermal/drivers/imx_sc_thermal: return -EAGAIN when SCFW turn off resource Frank Li
2023-07-13 12:49 ` Daniel Lezcano
2023-07-13 12:49   ` Daniel Lezcano
2023-07-14 17:19   ` Frank Li
2023-07-14 17:19     ` Frank Li
2023-08-16  8:44     ` Daniel Lezcano
2023-08-16  8:44       ` Daniel Lezcano
2023-08-16 16:28       ` Frank Li
2023-08-16 16:28         ` Frank Li
2023-08-16 16:47         ` Daniel Lezcano
2023-08-16 16:47           ` Daniel Lezcano
2023-08-16 17:07           ` Frank Li
2023-08-16 17:07             ` Frank Li
2023-08-16 20:45             ` Daniel Lezcano
2023-08-16 20:45               ` Daniel Lezcano
2023-08-16 21:23               ` Ulf Hansson
2023-08-16 21:23                 ` Ulf Hansson
2023-08-17 15:22                 ` Daniel Lezcano
2023-08-17 15:22                   ` Daniel Lezcano
2023-08-17 15:30                 ` Frank Li
2023-08-17 15:30                   ` Frank Li
2023-08-17 21:40                   ` Ulf Hansson
2023-08-17 21:40                     ` Ulf Hansson

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