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From a0319f8b12c0fb9800da61f4cba9bd6fd80e37a4 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 15 Sep 2016 17:46:53 +0200
Subject: [PATCH] spi: bcm-qspi: fix suspend/resume #ifdef
The two power management functions are define inside of an #ifdef
but referenced unconditionally, which is obviously broken when
CONFIG_PM_SLEEP is not set:
drivers/spi/spi-bcm-qspi.c:1300:13: error: 'bcm_qspi_suspend' undeclared here (not in a function)
drivers/spi/spi-bcm-qspi.c:1301:13: error: 'bcm_qspi_resume' undeclared here (not in a function)
This replaces the #ifdef with a __maybe_unused annotation that lets
the compiler figure out whether to drop the functions itself,
and uses SIMPLE_DEV_PM_OPS() to refer to the functions.
This will also fill the freeze/thaw/poweroff/restore callback
pointers in addition to suspend/resume, but as far as I can tell,
this is what we want.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: fa236a7ef240 ("spi: bcm-qspi: Add Broadcom MSPI driver")
Signed-off-by: Mark Brown <broonie@kernel.org>
---
drivers/spi/spi-bcm-qspi.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -1268,8 +1268,7 @@ int bcm_qspi_remove(struct platform_devi
/* function to be called by SoC specific platform driver remove() */
EXPORT_SYMBOL_GPL(bcm_qspi_remove);
-#ifdef CONFIG_PM_SLEEP
-static int bcm_qspi_suspend(struct device *dev)
+static int __maybe_unused bcm_qspi_suspend(struct device *dev)
{
struct bcm_qspi *qspi = dev_get_drvdata(dev);
@@ -1280,7 +1279,7 @@ static int bcm_qspi_suspend(struct devic
return 0;
};
-static int bcm_qspi_resume(struct device *dev)
+static int __maybe_unused bcm_qspi_resume(struct device *dev)
{
struct bcm_qspi *qspi = dev_get_drvdata(dev);
int ret = 0;
@@ -1293,12 +1292,9 @@ static int bcm_qspi_resume(struct device
return ret;
}
-#endif /* CONFIG_PM_SLEEP */
-const struct dev_pm_ops bcm_qspi_pm_ops = {
- .suspend = bcm_qspi_suspend,
- .resume = bcm_qspi_resume,
-};
+SIMPLE_DEV_PM_OPS(bcm_qspi_pm_ops, bcm_qspi_suspend, bcm_qspi_resume);
+
/* pm_ops to be called by SoC specific platform driver */
EXPORT_SYMBOL_GPL(bcm_qspi_pm_ops);
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