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scsi: ufs-mediatek: fix HOST_PA_TACTIVATE quirk for Samsung UFS Devices 

Device quirk "UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE" is enabled for all
Samsung devices by default currently.

However MediaTek UFS host requires different host PA_TACTIVATE
configuration. Hence clear this quirk first and then apply vendor-specific
value in vops callback.

Link: https://lore.kernel.org/r/20200302135346.16797-1-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Stanley Chu 2020-03-02 21:53:46 +08:00 committed by Martin K. Petersen
parent b893eb0141
commit 47d054580a
1 changed files with 3 additions and 1 deletions
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4
drivers/scsi/ufs/ufs-mediatek.c
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@ -533,8 +533,10 @@ static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba)
struct ufs_dev_info *dev_info = &hba->dev_info;
u16 mid = dev_info->wmanufacturerid;
if (mid == UFS_VENDOR_SAMSUNG)
if (mid == UFS_VENDOR_SAMSUNG) {
hba->dev_quirks &= ~UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE;
ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 6);
}
/*
* Decide waiting time before gating reference clock and