evie/android_kernel_oneplus_msm8998
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scsi: ufs-msm: Fix unnecessary poll during initialization

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In msm_ufs_check_hibern8(), the loop never breaks until
timeout even if the tx_fsm_val is equal to expected value.

Change-Id: I6f5ee6aea2e50ff6c88547d5e651d6cccfd25212
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
This commit is contained in:
Sujit Reddy Thumma 2013-09-07 20:25:54 +05:30 • committed by David Keitel
parent 84bbb68e0d
commit 2d4f54de1b
1 changed files with 6 additions and 4 deletions
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6
drivers/scsi/ufs/ufs-msm.c
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@ -1098,10 +1098,12 @@ static int msm_ufs_check_hibern8(struct ufs_hba *hba)
do { do {
err = ufshcd_dme_get(hba, err = ufshcd_dme_get(hba,
UIC_ARG_MIB(MPHY_TX_FSM_STATE), &tx_fsm_val); UIC_ARG_MIB(MPHY_TX_FSM_STATE), &tx_fsm_val);
if (!err && tx_fsm_val != TX_FSM_HIBERN8) if (err || tx_fsm_val == TX_FSM_HIBERN8)
break;
/* sleep for max. 200us */ /* sleep for max. 200us */
usleep_range(100, 200); usleep_range(100, 200);
} while (!err && time_before(jiffies, timeout)); } while (time_before(jiffies, timeout));
/* /*
* we might have scheduled out for long during polling so * we might have scheduled out for long during polling so