From 0f9592ae26ffe044cfb2b2d071ccf4427be57ed4 Mon Sep 17 00:00:00 2001 From: Mary Guillemard <mary@mary.zone> Date: Mon, 19 Aug 2024 00:24:42 +0200 Subject: [PATCH] scsi: ufs: ufs-mediatek: Add UFSHCD_QUIRK_BROKEN_LSDBS_CAP MT8183 implements the UFSHCI 2.1 spec but reports a bogus value of 1 in the reserved part for the Legacy Single Doorbell Support (LSDBS) capability. 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> Link: https://lore.kernel.org/r/20240818222442.44990-3-mary@mary.zone Reviewed-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> --- 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 02c9064284e16..9a5919434c4e0 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); /* -- GitLab