summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--drivers/platform/olpc/olpc-ec.c48
-rw-r--r--include/linux/olpc-ec.h6
2 files changed, 54 insertions, 0 deletions
diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c
index 44e6a4fae79b..d00523c65191 100644
--- a/drivers/platform/olpc/olpc-ec.c
+++ b/drivers/platform/olpc/olpc-ec.c
@@ -8,6 +8,7 @@
#include <linux/completion.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
+#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/module.h>
#include <linux/list.h>
@@ -122,3 +123,50 @@ int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf, size_t outlen)
return desc.err;
}
EXPORT_SYMBOL_GPL(olpc_ec_cmd);
+
+static int olpc_ec_probe(struct platform_device *pdev)
+{
+ int err;
+
+ if (!ec_driver)
+ return -ENODEV;
+
+ err = ec_driver->probe ? ec_driver->probe(pdev) : 0;
+
+ return err;
+}
+
+static int olpc_ec_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ return ec_driver->suspend ? ec_driver->suspend(pdev) : 0;
+}
+
+static int olpc_ec_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ return ec_driver->resume ? ec_driver->resume(pdev) : 0;
+}
+
+static const struct dev_pm_ops olpc_ec_pm_ops = {
+ .suspend_late = olpc_ec_suspend,
+ .resume_early = olpc_ec_resume,
+};
+
+static struct platform_driver olpc_ec_plat_driver = {
+ .probe = olpc_ec_probe,
+ .driver = {
+ .name = "olpc-ec",
+ .pm = &olpc_ec_pm_ops,
+ },
+};
+
+static int __init olpc_ec_init_module(void)
+{
+ return platform_driver_register(&olpc_ec_plat_driver);
+}
+
+module_init(olpc_ec_init_module);
+
+MODULE_AUTHOR("Andres Salomon <dilinger@queued.net>");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/olpc-ec.h b/include/linux/olpc-ec.h
index 231e96f5dfe2..5bb6e760aa61 100644
--- a/include/linux/olpc-ec.h
+++ b/include/linux/olpc-ec.h
@@ -14,7 +14,13 @@
#define EC_SCI_QUERY 0x84
#define EC_EXT_SCI_QUERY 0x85
+struct platform_device;
+
struct olpc_ec_driver {
+ int (*probe)(struct platform_device *);
+ int (*suspend)(struct platform_device *);
+ int (*resume)(struct platform_device *);
+
int (*ec_cmd)(u8, u8 *, size_t, u8 *, size_t, void *);
};