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authorBjorn Andersson <bjorn.andersson@sonymobile.com>2015-08-24 23:38:46 +0300
committerAndy Gross <agross@codeaurora.org>2015-09-09 23:58:04 +0300
commit208487a8f69084992f76ef87ddd3e00e5eaf6587 (patch)
tree14081925eaa635304acb76e7a917399fcbce7205 /drivers/soc
parent93dbed9121cc8e0fcc93edd9fca901322bdfbd1a (diff)
downloadlinux-208487a8f69084992f76ef87ddd3e00e5eaf6587.tar.xz
soc: qcom: smd: Correct fBLOCKREADINTR handling
fBLOCKREADINTR is masking the notification from the remote and should hence be cleared while we're waiting the tx fifo to drain. Also change the reset state to mask the notification, as send is the only use case where we're interested in it. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Andy Gross <agross@codeaurora.org>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/qcom/smd.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/soc/qcom/smd.c b/drivers/soc/qcom/smd.c
index edd9d9a37238..a6155c917d52 100644
--- a/drivers/soc/qcom/smd.c
+++ b/drivers/soc/qcom/smd.c
@@ -312,7 +312,7 @@ static void qcom_smd_channel_reset(struct qcom_smd_channel *channel)
SET_TX_CHANNEL_INFO(channel, fHEAD, 0);
SET_TX_CHANNEL_INFO(channel, fTAIL, 0);
SET_TX_CHANNEL_INFO(channel, fSTATE, 1);
- SET_TX_CHANNEL_INFO(channel, fBLOCKREADINTR, 0);
+ SET_TX_CHANNEL_INFO(channel, fBLOCKREADINTR, 1);
SET_TX_CHANNEL_INFO(channel, head, 0);
SET_TX_CHANNEL_INFO(channel, tail, 0);
@@ -683,7 +683,7 @@ int qcom_smd_send(struct qcom_smd_channel *channel, const void *data, int len)
goto out;
}
- SET_TX_CHANNEL_INFO(channel, fBLOCKREADINTR, 1);
+ SET_TX_CHANNEL_INFO(channel, fBLOCKREADINTR, 0);
ret = wait_event_interruptible(channel->fblockread_event,
qcom_smd_get_tx_avail(channel) >= tlen ||
@@ -691,7 +691,7 @@ int qcom_smd_send(struct qcom_smd_channel *channel, const void *data, int len)
if (ret)
goto out;
- SET_TX_CHANNEL_INFO(channel, fBLOCKREADINTR, 0);
+ SET_TX_CHANNEL_INFO(channel, fBLOCKREADINTR, 1);
}
SET_TX_CHANNEL_INFO(channel, fTAIL, 0);