From: Hans de Goede <j.w.r.degoede at hhs.nl>
Content-Disposition: inline; filename=hwmon-abituguru-suspend-resume.patch
This patch contains rudimentary suspend / resume support for the uguru,
this protects the uguru and the driver against suspend / resume cycles,
so there is no reason to unload the driver in your suspend / resume
scripts.
Only include suspend / resume functions when CONFIG_PM is set.
Signed-off-by: Hans de Goede <j.w.r.degoede at hhs.nl>
Signed-off-by: Jean Delvare <khali at linux-fr.org>
---
drivers/hwmon/abituguru.c | 30 ++++++++++++++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
--- linux-2.6.18-rc5.orig/drivers/hwmon/abituguru.c 2006-08-28 11:44:16.000000000 +0200
+++ linux-2.6.18-rc5/drivers/hwmon/abituguru.c 2006-08-28 13:47:55.000000000 +0200
@@ -1354,13 +1354,39 @@
return NULL;
}
+#ifdef CONFIG_PM
+static int abituguru_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct abituguru_data *data = platform_get_drvdata(pdev);
+ /* make sure all communications with the uguru are done and no new
+ ones are started */
+ mutex_lock(&data->update_lock);
+ return 0;
+}
+
+static int abituguru_resume(struct platform_device *pdev)
+{
+ struct abituguru_data *data = platform_get_drvdata(pdev);
+ /* See if the uGuru is still ready */
+ if (inb_p(data->addr + ABIT_UGURU_DATA) != ABIT_UGURU_STATUS_INPUT)
+ data->uguru_ready = 0;
+ mutex_unlock(&data->update_lock);
+ return 0;
+}
+#else
+#define abituguru_suspend NULL
+#define abituguru_resume NULL
+#endif /* CONFIG_PM */
+
static struct platform_driver abituguru_driver = {
.driver = {
.owner = THIS_MODULE,
.name = ABIT_UGURU_NAME,
},
- .probe = abituguru_probe,
- .remove = __devexit_p(abituguru_remove),
+ .probe = abituguru_probe,
+ .remove = __devexit_p(abituguru_remove),
+ .suspend = abituguru_suspend,
+ .resume = abituguru_resume,
};
static int __init abituguru_detect(void)
--
Jean Delvare
