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scsi: ufs: ufs-mediatek: Fix HCI version in some platforms

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Some MediaTek SoC platforms with UFSHCI version below 3.0 have incorrect
UFSHCI versions showed in register map.

Fix the version by referring to UniPro version which is always correct.

Link: https://lore.kernel.org/r/20210531062642.12642-1-stanley.chu@mediatek.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.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 2021-05-31 14:26:42 +08:00 committed by Martin K. Petersen
parent 79c932cd6a
commit 2c89e41326
1 changed files with 14 additions and 1 deletions
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15
drivers/scsi/ufs/ufs-mediatek.c
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@ -603,11 +603,23 @@ static void ufs_mtk_get_controller_version(struct ufs_hba *hba)
ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_LOCALVERINFO), &ver);
if (!ret) {
if (ver >= UFS_UNIPRO_VER_1_8)
if (ver >= UFS_UNIPRO_VER_1_8) {
host->hw_ver.major = 3;
/*
* Fix HCI version for some platforms with
* incorrect version
*/
if (hba->ufs_version < ufshci_version(3, 0))
hba->ufs_version = ufshci_version(3, 0);
}
}
}
static u32 ufs_mtk_get_ufs_hci_version(struct ufs_hba *hba)
{
return hba->ufs_version;
}
/**
* ufs_mtk_init - find other essential mmio bases
* @hba: host controller instance
@ -1048,6 +1060,7 @@ static void ufs_mtk_event_notify(struct ufs_hba *hba,
static const struct ufs_hba_variant_ops ufs_hba_mtk_vops = {
.name = "mediatek.ufshci",
.init = ufs_mtk_init,
.get_ufs_hci_version = ufs_mtk_get_ufs_hci_version,
.setup_clocks = ufs_mtk_setup_clocks,
.hce_enable_notify = ufs_mtk_hce_enable_notify,
.link_startup_notify = ufs_mtk_link_startup_notify,