From: Arnd Bergmann <arnd@kernel.org>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Christian Hemp <c.hemp@phytec.de>,
Stefan Riedmueller <s.riedmueller@phytec.de>,
Jacopo Mondi <jacopo@jmondi.org>,
Dong Aisheng <aisheng.dong@nxp.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
Guoniu Zhou <guoniu.zhou@nxp.com>,
linux-media@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] [v3] media: nxp: ignore unused suspend operations
Date: Tue, 18 Apr 2023 11:19:55 +0200 [thread overview]
Message-ID: <20230418092007.2902984-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
gcc warns about some functions being unused when CONFIG_PM_SLEEP
is disabled:
drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c:328:12: error: 'mxc_isi_pm_resume' defined but not used [-Werror=unused-function]
328 | static int mxc_isi_pm_resume(struct device *dev)
| ^~~~~~~~~~~~~~~~~
drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c:314:12: error: 'mxc_isi_pm_suspend' defined but not used [-Werror=unused-function]
314 | static int mxc_isi_pm_suspend(struct device *dev)
| ^~~~~~~~~~~~~~~~~~
Use the modern SYSTEM_SLEEP_PM_OPS()/RUNTIME_PM_OPS() helpers in place
of the old SET_SYSTEM_SLEEP_PM_OPS()/SET_RUNTIME_PM_OPS() ones.
By convention, use pm_ptr() to guard the reference to the operations.
This makes no difference as long as the driver requires CONFIG_PM,
but is what users of SET_RUNTIME_PM_OPS() are supposed to do.
Fixes: cf21f328fcaf ("media: nxp: Add i.MX8 ISI driver")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
v3: update changelog text
v2: Laurent and me both sent a v1
---
drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c
index 238521622b75..253e77189b69 100644
--- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c
+++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c
@@ -378,8 +378,8 @@ static int mxc_isi_runtime_resume(struct device *dev)
}
static const struct dev_pm_ops mxc_isi_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(mxc_isi_pm_suspend, mxc_isi_pm_resume)
- SET_RUNTIME_PM_OPS(mxc_isi_runtime_suspend, mxc_isi_runtime_resume, NULL)
+ SYSTEM_SLEEP_PM_OPS(mxc_isi_pm_suspend, mxc_isi_pm_resume)
+ RUNTIME_PM_OPS(mxc_isi_runtime_suspend, mxc_isi_runtime_resume, NULL)
};
/* -----------------------------------------------------------------------------
@@ -528,7 +528,7 @@ static struct platform_driver mxc_isi_driver = {
.driver = {
.of_match_table = mxc_isi_of_match,
.name = MXC_ISI_DRIVER_NAME,
- .pm = &mxc_isi_pm_ops,
+ .pm = pm_ptr(&mxc_isi_pm_ops),
}
};
module_platform_driver(mxc_isi_driver);
--
2.39.2
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