[PATCH v1 3/3] ufs: host: mediatek: disable mcq irq when clock off

[peter.wang at mediatek.com]

From: Peter Wang <peter.wang at mediatek.com>

Disable mcq irq when clock off, this is same as legacy mode.

Signed-off-by: Peter Wang <peter.wang at mediatek.com>
---
 drivers/ufs/host/ufs-mediatek.c | 41 +++++++++++++++++++++++++++++++++
 drivers/ufs/host/ufs-mediatek.h |  1 +
 2 files changed, 42 insertions(+)

diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index eb1934126c87..51f05038408a 100644
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -660,6 +660,45 @@ static void ufs_mtk_pwr_ctrl(struct ufs_hba *hba, bool on)
 	}
 }
 
+static void ufs_mtk_mcq_disable_irq(struct ufs_hba *hba)
+{
+	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+	u32 irq, i;
+
+	if (!is_mcq_enabled(hba))
+		return;
+
+	if (host->mcq_nr_intr == 0)
+		return;
+
+	for (i = 0; i < host->mcq_nr_intr; i++) {
+		irq = host->mcq_intr_info[i].irq;
+		disable_irq(irq);
+	}
+	host->is_mcq_intr_enabled = false;
+}
+
+static void ufs_mtk_mcq_enable_irq(struct ufs_hba *hba)
+{
+	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+	u32 irq, i;
+
+	if (!is_mcq_enabled(hba))
+		return;
+
+	if (host->mcq_nr_intr == 0)
+		return;
+
+	if (host->is_mcq_intr_enabled == true)
+		return;
+
+	for (i = 0; i < host->mcq_nr_intr; i++) {
+		irq = host->mcq_intr_info[i].irq;
+		enable_irq(irq);
+	}
+	host->is_mcq_intr_enabled = true;
+}
+
 /**
  * ufs_mtk_setup_clocks - enables/disable clocks
  * @hba: host controller instance
@@ -703,8 +742,10 @@ static int ufs_mtk_setup_clocks(struct ufs_hba *hba, bool on,
 
 		if (clk_pwr_off)
 			ufs_mtk_pwr_ctrl(hba, false);
+		ufs_mtk_mcq_disable_irq(hba);
 	} else if (on && status == POST_CHANGE) {
 		ufs_mtk_pwr_ctrl(hba, true);
+		ufs_mtk_mcq_enable_irq(hba);
 	}
 
 	return ret;
diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h
index f76e80d91729..922f1e51a60c 100644
--- a/drivers/ufs/host/ufs-mediatek.h
+++ b/drivers/ufs/host/ufs-mediatek.h
@@ -186,6 +186,7 @@ struct ufs_mtk_host {
 	u32 ip_ver;
 
 	bool mcq_set_intr;
+	bool is_mcq_intr_enabled;
 	int mcq_nr_intr;
 	struct ufs_mtk_mcq_intr_info mcq_intr_info[UFSHCD_MAX_Q_NR];
 };
-- 
2.18.0