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Fri, 15 Mar 2024 16:34:52 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 15 Mar 2024 16:34:50 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 15 Mar 2024 16:34:50 +0800 From: To: , , , , CC: , , , , , , , , , , , , , , Subject: [PATCH v2 3/7] ufs: host: mediatek: Add UFS_MTK_CAP_DISABLE_MCQ Date: Fri, 15 Mar 2024 16:34:44 +0800 Message-ID: <20240315083448.7185-4-peter.wang@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240315083448.7185-1-peter.wang@mediatek.com> References: <20240315083448.7185-1-peter.wang@mediatek.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--9.664600-8.000000 X-TMASE-MatchedRID: Dz2rI8EJB2APRVepDWIjx7iMC5wdwKqdT2fFmw5H8VPI9EDAP/dptm/Y agJ/V3Z5L7y59K1QGD/G81sj4r28+AxAtdzYwZJsH5YQyOg71ZZMkOX0UoduuQqiCYa6w8tvlUN mxPSthYIULfbRmZ/onHhbWkjJzPSiFm2HuAZVgfZfwzQfOH01PDJcsSAcBZLamyiLZetSf8mfop 0ytGwvXiq2rl3dzGQ1l3+bAt/YFVRLioE7CwaedVoA92s8DJ3qyWh+cGWvov7FbXKUXP6jRWgGZ NLBHGNe X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--9.664600-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 9A9341DD883609E319E4AC0196D5F112CE51C50D14BDD4B24523ED0E53B8A8D42000:8 X-MTK: N From: Po-Wen Kao Add new mediatek host cap UFS_MTK_CAP_DISABLE_MCQ to allow disable MCQ feature by assigning dts boolean property "mediatek,ufs-disable-mcq"" Acked-by: Chun-Hung Wu Reviewed-by: Avri Altman Reviewed-by: Peter Wang Signed-off-by: Peter Wang Signed-off-by: Po-Wen Kao --- drivers/ufs/host/ufs-mediatek.c | 12 ++++++++++++ drivers/ufs/host/ufs-mediatek.h | 1 + 2 files changed, 13 insertions(+) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 25bf5a13cddd..2ee7881533ec 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -640,6 +640,9 @@ static void ufs_mtk_init_host_caps(struct ufs_hba *hba) if (of_property_read_bool(np, "mediatek,ufs-tx-skew-fix")) host->caps |= UFS_MTK_CAP_TX_SKEW_FIX; + if (of_property_read_bool(np, "mediatek,ufs-disable-mcq")) + host->caps |= UFS_MTK_CAP_DISABLE_MCQ; + dev_info(hba->dev, "caps: 0x%x", host->caps); } @@ -874,6 +877,9 @@ static void ufs_mtk_init_mcq_irq(struct ufs_hba *hba) host->mcq_nr_intr = UFSHCD_MAX_Q_NR; pdev = container_of(hba->dev, struct platform_device, dev); + if (host->caps & UFS_MTK_CAP_DISABLE_MCQ) + goto failed; + for (i = 0; i < host->mcq_nr_intr; i++) { /* irq index 0 is legacy irq, sq/cq irq start from index 1 */ irq = platform_get_irq(pdev, i + 1); @@ -1585,6 +1591,12 @@ static int ufs_mtk_clk_scale_notify(struct ufs_hba *hba, bool scale_up, static int ufs_mtk_get_hba_mac(struct ufs_hba *hba) { + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + + /* MCQ operation not permitted */ + if (host->caps & UFS_MTK_CAP_DISABLE_MCQ) + return -EPERM; + return MAX_SUPP_MAC; } diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h index c1acbfc5568f..3f698af5f5ac 100644 --- a/drivers/ufs/host/ufs-mediatek.h +++ b/drivers/ufs/host/ufs-mediatek.h @@ -144,6 +144,7 @@ enum ufs_mtk_host_caps { UFS_MTK_CAP_ALLOW_VCCQX_LPM = 1 << 5, UFS_MTK_CAP_PMC_VIA_FASTAUTO = 1 << 6, UFS_MTK_CAP_TX_SKEW_FIX = 1 << 7, + UFS_MTK_CAP_DISABLE_MCQ = 1 << 8, }; struct ufs_mtk_crypt_cfg {