staging: nvec: send suspend messages synchronously
The suspend commands need to be sent using the
synchronous method, otherwise the power gets
disabled before the messages are transferred.
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
[jak@jak-linux.org: Rewrote commit message]
Signed-off-by: Julian Andres Klode <jak@jak-linux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 07c8e09..fb0f095 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -861,10 +861,16 @@
static int tegra_nvec_suspend(struct platform_device *pdev, pm_message_t state)
{
struct nvec_chip *nvec = platform_get_drvdata(pdev);
+ struct nvec_msg *msg;
dev_dbg(nvec->dev, "suspending\n");
- nvec_write_async(nvec, EC_DISABLE_EVENT_REPORTING, 3);
- nvec_write_async(nvec, "\x04\x02", 2);
+
+ /* keep these sync or you'll break suspend */
+ msg = nvec_write_sync(nvec, EC_DISABLE_EVENT_REPORTING, 3);
+ nvec_msg_free(nvec, msg);
+ msg = nvec_write_sync(nvec, "\x04\x02", 2);
+ nvec_msg_free(nvec, msg);
+
nvec_disable_i2c_slave(nvec);
return 0;
