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scsi: ufs: Increase the PA_HIBERN8TIME on the host

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The device advertises PA_HIBERN8TIME may not be enough for some UFS
devices. To workaround this issue, host should add more 100 us.

The commit 8941234ea1 ("scsi: ufs: Add UFS_DEVICE_QUIRK_PA_HIBER8TIME
quirk") just increase PA_HIBERN8TIME base on TX_HIBERN8TIME_CAPABILITY,
we should increase PA_HIBERN8TIME directly because the
RX_HIBERN8TIME_CAPABILITY may be more than TX_HIBERN8TIME_CAPABILITY.

Change-Id: If5e28e11a656df999fc50014e65bc89498b28499
Signed-off-by: Ziqi Chen <ziqichen@codeaurora.org>
This commit is contained in:
Ziqi Chen 2021-01-04 16:58:21 +08:00
commit 06efe84d5f
1 changed files with 5 additions and 6 deletions
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11
drivers/scsi/ufs/ufs-qcom.c
View file

@ -1808,19 +1808,18 @@ static void ufshcd_parse_pm_levels(struct ufs_hba *hba)
static void ufs_qcom_override_pa_h8time(struct ufs_hba *hba)
{
int ret;
u32 loc_tx_h8time_cap = 0;
u32 pa_h8time = 0;
ret = ufshcd_dme_get(hba, UIC_ARG_MIB_SEL(TX_HIBERN8TIME_CAPABILITY,
UIC_ARG_MPHY_TX_GEN_SEL_INDEX(0)),
&loc_tx_h8time_cap);
ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_HIBERN8TIME),
&pa_h8time);
if (ret) {
dev_err(hba->dev, "Failed getting max h8 time: %d\n", ret);
dev_err(hba->dev, "Failed getting PA_HIBERN8TIME time: %d\n", ret);
return;
}
/* 1 implies 100 us */
ret = ufshcd_dme_set(hba, UIC_ARG_MIB(PA_HIBERN8TIME),
loc_tx_h8time_cap + 1);
pa_h8time + 1);
if (ret)
dev_err(hba->dev, "Failed updating PA_HIBERN8TIME: %d\n", ret);