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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>
This commit is contained in:
Marc Dietrich 2011-09-27 19:01:08 +02:00 committed by Greg Kroah-Hartman
parent de839b8f06
commit 9feeb0147f
1 changed files with 8 additions and 2 deletions
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10
drivers/staging/nvec/nvec.c
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@ -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;