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FROMLIST: scsi: ufs: Add support for HCM

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Support devices that report they are using host control mode.

Bug: 183467926
Bug: 170940265
Bug: 183454255

Link: https://lore.kernel.org/lkml/20210607061401.58884-12-avri.altman@wdc.com/
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Change-Id: I7cb80024255626feacfe4c344bbcc17727291a26
This commit is contained in:
Avri Altman
2020-09-02 17:48:18 +03:00
committed by Todd Kjos
parent dd41ce5581
commit fbf68bf104
1 changed files with 0 additions and 6 deletions
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6
drivers/scsi/ufs/ufshpb.c
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@@ -2584,12 +2584,6 @@ 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) &&