scsi: ufs: ufshpb: Add support for host control mode

Support devices that report they are using host control mode.

Link: https://lore.kernel.org/r/20210712095039.8093-12-avri.altman@wdc.com
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index cb55a08..49f5859 100644 (file)
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -2582,12 +2582,6 @@ void ufshpb_get_dev_info(struct ufs_hba *hba, u8 *desc_buf)
        u32 max_hpb_single_cmd = HPB_MULTI_CHUNK_LOW;
 
        hpb_dev_info->control_mode = desc_buf[DEVICE_DESC_PARAM_HPB_CONTROL];
-       if (hpb_dev_info->control_mode == HPB_HOST_CONTROL) {
-               dev_err(hba->dev, "%s: host control mode is not supported.\n",
-                       __func__);
-               hpb_dev_info->hpb_disabled = true;
-               return;
-       }
 
        version = get_unaligned_be16(desc_buf + DEVICE_DESC_PARAM_HPB_VER);
        if ((version != HPB_SUPPORT_VERSION) &&