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Code Issues Projects Releases Wiki Activity

coresight: disable spmi handshake while enabling qpdi 

SPMI handshake configuration was added on newer chips but isn't
quite supported. Ensure it remains disabled while enabling or
disabling qpdi feature to avoid side effects on qpdi
functionality.

Change-Id: I222ec1c42b483208ac640a9039b6eb042a6bae79
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
This commit is contained in:
Pratik Patel 2015-04-15 12:11:09 -07:00 committed by Gerrit - the friendly Code Review server
parent 2473dd7dc3
commit 5564253183
1 changed files with 3 additions and 3 deletions
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6
drivers/coresight/coresight-qpdi.c
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@ -1,4 +1,4 @@
/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
/* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -127,7 +127,7 @@ static int qpdi_enable(struct qpdi_drvdata *drvdata)
if (ret)
goto err;
qpdi_writel(drvdata, 0, QPDI_DISABLE_CFG);
qpdi_writel(drvdata, 0x2, QPDI_DISABLE_CFG);
drvdata->enable = true;
dev_info(drvdata->dev, "qpdi enabled\n");
@ -159,7 +159,7 @@ static void qpdi_disable(struct qpdi_drvdata *drvdata)
return;
}
qpdi_writel(drvdata, 1, QPDI_DISABLE_CFG);
qpdi_writel(drvdata, 0x3, QPDI_DISABLE_CFG);
__qpdi_disable(drvdata);