diff mbox series

ufs: core: add caps UFSHCD_CAP_MCQ_EN

Message ID 20250421135123.594-1-tanghuan@vivo.com
State New
Headers show
Series ufs: core: add caps UFSHCD_CAP_MCQ_EN | expand

Commit Message

Huan Tang April 21, 2025, 1:51 p.m. UTC 
Add caps UFSHCD_CAP_MCQ_EN(default enable), then host driver to
control the on/off of MCQ; Sometimes, we don't want to enable
MCQ and want to disable it through the host driver, for example,
ufs-qcom.c .

Signed-off-by: Huan Tang <tanghuan@vivo.com>
---
 drivers/ufs/core/ufshcd.c | 3 ++-
 include/ufs/ufshcd.h      | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 44156041d88f..b8937f85d81a 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -112,7 +112,7 @@  static bool use_mcq_mode = true;
 
 static bool is_mcq_supported(struct ufs_hba *hba)
 {
-	return hba->mcq_sup && use_mcq_mode;
+	return hba->mcq_sup && use_mcq_mode && (hba->caps & UFSHCD_CAP_MCQ_EN);
 }
 
 module_param(use_mcq_mode, bool, 0644);
@@ -10389,6 +10389,7 @@  int ufshcd_alloc_host(struct device *dev, struct ufs_hba **hba_handle)
 	hba->dev = dev;
 	hba->dev_ref_clk_freq = REF_CLK_FREQ_INVAL;
 	hba->nop_out_timeout = NOP_OUT_TIMEOUT;
+	hba->caps |= UFSHCD_CAP_MCQ_EN;
 	ufshcd_set_sg_entry_size(hba, sizeof(struct ufshcd_sg_entry));
 	INIT_LIST_HEAD(&hba->clk_list_head);
 	spin_lock_init(&hba->outstanding_lock);
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index e928ed0265ff..d8547bc6bf79 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -771,6 +771,12 @@  enum ufshcd_caps {
 	 * WriteBooster when scaling the clock down.
 	 */
 	UFSHCD_CAP_WB_WITH_CLK_SCALING			= 1 << 12,
+
+	/*
+	 * This capability allows the host controller driver to use the
+	 * multi-circular queue, if it is present
+	 */
+	UFSHCD_CAP_MCQ_EN				= 1 << 13,
 };
 
 struct ufs_hba_variant_params {