From: Mary Guillemard <mary@mary.zone>
To: linux-kernel@vger.kernel.org
Cc: linux-scsi@vger.kernel.org, Mary Guillemard <mary@mary.zone>,
Peter Wang <peter.wang@mediatek.com>,
Stanley Jhu <chu.stanley@gmail.com>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Subject: [PATCH 1/1] scsi: ufs-mediatek: Add UFSHCD_QUIRK_BROKEN_LSDBS_CAP
Date: Mon, 19 Aug 2024 00:24:42 +0200 [thread overview]
Message-ID: <20240818222442.44990-3-mary@mary.zone> (raw)
In-Reply-To: <20240818222442.44990-2-mary@mary.zone>
MT8183 supports UFSHCI 2.1 spec, but report a bogus value of 1 in the
reserved part for the Legacy Single Doorbell Support (LSDBS) capability.
This set UFSHCD_QUIRK_BROKEN_LSDBS_CAP when MCQ support is explicitly
disabled, allowing the device to be properly registered.
Signed-off-by: Mary Guillemard <mary@mary.zone>
---
drivers/ufs/host/ufs-mediatek.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index 02c9064284e1..9a5919434c4e 100644
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -1026,6 +1026,9 @@ static int ufs_mtk_init(struct ufs_hba *hba)
if (host->caps & UFS_MTK_CAP_DISABLE_AH8)
hba->caps |= UFSHCD_CAP_HIBERN8_WITH_CLK_GATING;
+ if (host->caps & UFS_MTK_CAP_DISABLE_MCQ)
+ hba->quirks |= UFSHCD_QUIRK_BROKEN_LSDBS_CAP;
+
ufs_mtk_init_clocks(hba);
/*
--
2.46.0
next prev parent reply other threads:[~2024-08-18 22:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-18 22:24 [PATCH 0/1] ufs: mediatek: Fix probe failure on MT8395 SoC Mary Guillemard
2024-08-18 22:24 ` Mary Guillemard [this message]
2024-08-19 12:08 ` [PATCH 1/1] scsi: ufs-mediatek: Add UFSHCD_QUIRK_BROKEN_LSDBS_CAP Manivannan Sadhasivam
2024-08-19 18:17 ` Mary Guillemard
2024-08-20 5:56 ` Peter Wang (王信友)
2024-08-20 6:09 ` Manivannan Sadhasivam
2024-08-20 21:50 ` Bart Van Assche
2024-08-21 21:32 ` Mary Guillemard
2024-08-22 6:34 ` Manivannan Sadhasivam
2024-08-20 5:58 ` Peter Wang (王信友)
2024-08-29 2:50 ` Martin K. Petersen
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