[PATCH v2 30/30] staging: nvec: send suspend messages synchronously

[Julian Andres Klode]

From: Marc Dietrich <marvin24 at gmx.de>

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 at gmx.de>
[jak at jak-linux.org: Rewrote commit message]
Signed-off-by: Julian Andres Klode <jak at jak-linux.org>
---
 drivers/staging/nvec/nvec.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

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 __devexit tegra_nvec_remove(struct platform_device *pdev)
 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;
-- 
1.7.5.4