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[PATCH v2] ufs: mcq: Adding a function for MCQ enable Date: Thu, 21 Dec 2023 15:56:08 +0900 Message-Id: <20231221065608.9899-1-cw9316.lee@samsung.com> X-Mailer: git-send-email 2.29.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA01Ta0xTZxjO13N6WnDMQ2XuGxpW6zYirEChwIcBHJFsZ2PZ2OXXloWd0LNC oJf1IsNk4ChyqYqiTKWiIIPCkK6kXERWkJaFjo0pF0WQEEBGBCMKCA4ZjrUUN/8975Pn+d73 eb+8XIyXz/Hlpso1jEpOpwsIT7yla0+wsHpSx4T8fD4cTVxoIdDAjxAVFhvZaPbJTQLZJgtx dHr+CYaW+q9i6OxveWzUMdTDQf2Xctlo9amZgyqHW1io9W4vB1mmhthosK2MQIO6foCO3Gol UOd8HUA1jn9YKCc3DDUv/s1Gc2PrOLpYcB5HJ4caCPT9jIODctY6cFTdPALQg++6wFs7qcEb CVTrWBWgrhjGOFSFRUtZ6goJ6spkFHWishNQjVXZVG7PVZz6y1xAUAvTt3Gq2JpFFTXVAeqR xY/K7zzCStz6WVp0CkNLGBWfkScrJKlyaYwg4ZOk/UnhESEioSgKRQr4clrGxAji308Uvp2a 7lyNgH+ATtc6qURarRYEx0arFFoNw09RqDUxAkYpSVdGKIPUtEytlUuD5IxmrygkJDTcKfwy LaWrY4qt7N35TV/J9kPgFNQDDy4kxbBqfZnlwjyyFcBho1YPPJ14EcAzOivhLh4DaDtnZOsB 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X-CMS-MailID: 20231221065637epcas1p203dcd5cfb1d4a3964fff9543a041d78d X-Msg-Generator: CA CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20231221065637epcas1p203dcd5cfb1d4a3964fff9543a041d78d References: X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785873657255746767 X-GMAIL-MSGID: 1785873657255746767 From: ChanWoo Lee The REG_UFS_MEM_CFG register is too general(broad) and it is difficult to know the meaning only with a value of 0x1. So far, comments were required. Therefore, I have added new functions and defines to improve code readability/reusability. Signed-off-by: ChanWoo Lee * v1->v2: 1) Excluding ESI_ENABLE 2) Replace with ufshcd_rmwl, BIT() 3) Separating hba->mcq_enabled Reviewed-by: Peter Wang --- drivers/ufs/core/ufs-mcq.c | 6 ++++++ drivers/ufs/core/ufshcd.c | 4 +--- drivers/ufs/host/ufs-mediatek.c | 4 +--- include/ufs/ufshcd.h | 1 + include/ufs/ufshci.h | 3 +++ 5 files changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c index 0787456c2b89..edc752e55878 100644 --- a/drivers/ufs/core/ufs-mcq.c +++ b/drivers/ufs/core/ufs-mcq.c @@ -399,6 +399,12 @@ void ufshcd_mcq_enable_esi(struct ufs_hba *hba) } EXPORT_SYMBOL_GPL(ufshcd_mcq_enable_esi); +void ufshcd_mcq_enable(struct ufs_hba *hba) +{ + ufshcd_rmwl(hba, MCQ_MODE_SELECT, MCQ_MODE_SELECT, REG_UFS_MEM_CFG); +} +EXPORT_SYMBOL_GPL(ufshcd_mcq_enable); + void ufshcd_mcq_config_esi(struct ufs_hba *hba, struct msi_msg *msg) { ufshcd_writel(hba, msg->address_lo, REG_UFS_ESILBA); diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index ae9936fc6ffb..30df6f6a72c6 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -8723,9 +8723,7 @@ static void ufshcd_config_mcq(struct ufs_hba *hba) hba->host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED; hba->reserved_slot = hba->nutrs - UFSHCD_NUM_RESERVED; - /* Select MCQ mode */ - ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1, - REG_UFS_MEM_CFG); + ufshcd_mcq_enable(hba); hba->mcq_enabled = true; dev_info(hba->dev, "MCQ configured, nr_queues=%d, io_queues=%d, read_queue=%d, poll_queues=%d, queue_depth=%d\n", diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index fc61790d289b..1048add66419 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1219,9 +1219,7 @@ static int ufs_mtk_link_set_hpm(struct ufs_hba *hba) ufs_mtk_config_mcq(hba, false); ufshcd_mcq_make_queues_operational(hba); ufshcd_mcq_config_mac(hba, hba->nutrs); - /* Enable MCQ mode */ - ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1, - REG_UFS_MEM_CFG); + ufshcd_mcq_enable(hba); } if (err) diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index d862c8ddce03..a96c45fa4b4b 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -1257,6 +1257,7 @@ unsigned long ufshcd_mcq_poll_cqe_lock(struct ufs_hba *hba, struct ufs_hw_queue *hwq); void ufshcd_mcq_make_queues_operational(struct ufs_hba *hba); void ufshcd_mcq_enable_esi(struct ufs_hba *hba); +void ufshcd_mcq_enable(struct ufs_hba *hba); void ufshcd_mcq_config_esi(struct ufs_hba *hba, struct msi_msg *msg); int ufshcd_opp_config_clks(struct device *dev, struct opp_table *opp_table, diff --git a/include/ufs/ufshci.h b/include/ufs/ufshci.h index d5accacae6bc..2a6989a70671 100644 --- a/include/ufs/ufshci.h +++ b/include/ufs/ufshci.h @@ -282,6 +282,9 @@ enum { /* UTMRLRSR - UTP Task Management Request Run-Stop Register 80h */ #define UTP_TASK_REQ_LIST_RUN_STOP_BIT 0x1 +/* REG_UFS_MEM_CFG - Global Config Registers 300h */ +#define MCQ_MODE_SELECT BIT(0) + /* CQISy - CQ y Interrupt Status Register */ #define UFSHCD_MCQ_CQIS_TAIL_ENT_PUSH_STS 0x1