The patch titled
lis3: add power management functions
has been added to the -mm tree. Its filename is
lis3-add-power-management-functions.patch
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------------------------------------------------------
Subject: lis3: add power management functions
From: Daniel Mack <daniel@xxxxxxxx>
This enabled power management functions for the SPI transport layer of the
lis3 devices. The device's suspend mode is only entered in case no wakeup
threshold has been given. In this case, the device is supposed to wake up
the system and must thus not be put to deep sleep.
Signed-off-by: Daniel Mack <daniel@xxxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Cc: Eric Piel <eric.piel@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/hwmon/lis3lv02d_spi.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff -puN drivers/hwmon/lis3lv02d_spi.c~lis3-add-power-management-functions drivers/hwmon/lis3lv02d_spi.c
--- a/drivers/hwmon/lis3lv02d_spi.c~lis3-add-power-management-functions
+++ a/drivers/hwmon/lis3lv02d_spi.c
@@ -87,6 +87,32 @@ static int __devexit lis302dl_spi_remove
return 0;
}
+#ifdef CONFIG_PM
+static int lis3lv02d_spi_suspend(struct spi_device *spi, pm_message_t mesg)
+{
+ struct lis3lv02d *lis3 = spi_get_drvdata(spi);
+
+ if (!lis3->pdata->wakeup_flags)
+ lis3lv02d_poweroff(&lis3_dev);
+
+ return 0;
+}
+
+static int lis3lv02d_spi_resume(struct spi_device *spi)
+{
+ struct lis3lv02d *lis3 = spi_get_drvdata(spi);
+
+ if (!lis3->pdata->wakeup_flags)
+ lis3lv02d_poweron(lis3);
+
+ return 0;
+}
+
+#else
+#define lis3_spi_suspend NULL
+#define lis3_spi_resume NULL
+#endif
+
static struct spi_driver lis302dl_spi_driver = {
.driver = {
.name = DRV_NAME,
@@ -94,6 +120,8 @@ static struct spi_driver lis302dl_spi_dr
},
.probe = lis302dl_spi_probe,
.remove = __devexit_p(lis302dl_spi_remove),
+ .suspend = lis3lv02d_spi_suspend,
+ .resume = lis3lv02d_spi_resume,
};
static int __init lis302dl_init(void)
_
Patches currently in -mm which might be from daniel@xxxxxxxx are
lis3-fix-typo.patch
lis3-add-free-fall-wakeup-function-via-platform_data.patch
lis3-add-power-management-functions.patch
lis3_spi-code-cleanups.patch
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