[PATCH v12 15/15] ufs: core: mcq: Enable Multi Circular Queue

[Asutosh Das]

Enable MCQ in the Host Controller.

Signed-off-by: Asutosh Das <quic_asutoshd at quicinc.com>
Reviewed-by: Bart Van Assche <bvanassche at acm.org>
Reviewed-by: Manivannan Sadhasivam <mani at kernel.org>
Reviewed-by: Stanley Chu <stanley.chu at mediatek.com>
---
 drivers/ufs/core/ufshcd.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 4d31131..8fae2ce 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -8455,6 +8455,12 @@ 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);
+	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",
 		 hba->nr_hw_queues, hba->nr_queues[HCTX_TYPE_DEFAULT],
 		 hba->nr_queues[HCTX_TYPE_READ], hba->nr_queues[HCTX_TYPE_POLL],
-- 
2.7.4