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
next reply other threads:[~2023-07-12 21:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-12 21:05 Frank Li [this message]
2023-07-13 12:49 ` Daniel Lezcano
2023-07-14 17:19 ` Frank Li
2023-08-16 8:44 ` Daniel Lezcano
2023-08-16 16:28 ` Frank Li
2023-08-16 16:47 ` Daniel Lezcano
2023-08-16 17:07 ` Frank Li
2023-08-16 20:45 ` Daniel Lezcano
2023-08-16 21:23 ` Ulf Hansson
2023-08-17 15:22 ` Daniel Lezcano
2023-08-17 15:30 ` Frank Li
2023-08-17 21:40 ` Ulf Hansson
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