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soc/qualcomm/ipq40xx: Reduce the delay in I2C.

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BUG=b:28942403
TEST=Boot up and TPM functions normally.
BRANCH=None

3ms delay is sufficient for qup_i2c_write_fifo_flush().

Change-Id: I202f5b8a1ef62bb039c56ba5a25b48b205cf4a67
Signed-off-by: Kan Yan <kyan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/357961
Reviewed-by: Suresh Rajashekara <sureshraj@chromium.org>
Reviewed-by: SARAVANAKUMAR SUDALAI <ssudalai@qti.qualcomm.com>
This commit is contained in:
Kan Yan 2016-06-30 13:46:56 -07:00 • committed by chrome-bot
commit d93520fab1
1 changed files with 1 additions and 1 deletions
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src/soc/qualcomm/ipq40xx/qup.c
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@ -175,7 +175,7 @@ static inline qup_return_t qup_i2c_write_fifo_flush(blsp_qup_id_t id)
qup_write32(QUP_ADDR(id, QUP_OPERATIONAL), OUTPUT_SERVICE_FLAG);
mdelay(10); /* TPM seems to need this */
mdelay(4); /* TPM seems to need this */
ret = qup_fifo_wait_while(id, OUTPUT_FIFO_NOT_EMPTY);
if (ret)