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List:       linux-serial
Subject:    [PATCH v4 06/10] clk: mediatek: Add flags support for mtk_gate data
From:       Erin Lo <erin.lo () mediatek ! com>
Date:       2018-07-31 5:38:03
Message-ID: 1533015487-60189-7-git-send-email-erin.lo () mediatek ! com
[Download RAW message or body]

From: Weiyi Lu <weiyi.lu@mediatek.com>

On some Mediatek platforms, there are critical clocks of
clock gate type.
To register clock gate with flags CLK_IS_CRITICAL,
we need to add the flags field in mtk_gate data and register APIs.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
---
 drivers/clk/mediatek/clk-gate.c | 5 +++--
 drivers/clk/mediatek/clk-gate.h | 3 ++-
 drivers/clk/mediatek/clk-mtk.c  | 3 ++-
 drivers/clk/mediatek/clk-mtk.h  | 1 +
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/mediatek/clk-gate.c b/drivers/clk/mediatek/clk-gate.c
index 934bf0e..25d25c3 100644
--- a/drivers/clk/mediatek/clk-gate.c
+++ b/drivers/clk/mediatek/clk-gate.c
@@ -157,7 +157,8 @@ struct clk *mtk_clk_register_gate(
 		int clr_ofs,
 		int sta_ofs,
 		u8 bit,
-		const struct clk_ops *ops)
+		const struct clk_ops *ops,
+		unsigned int flags)
 {
 	struct mtk_clk_gate *cg;
 	struct clk *clk;
@@ -168,7 +169,7 @@ struct clk *mtk_clk_register_gate(
 		return ERR_PTR(-ENOMEM);
 
 	init.name = name;
-	init.flags = CLK_SET_RATE_PARENT;
+	init.flags = flags | CLK_SET_RATE_PARENT;
 	init.parent_names = parent_name ? &parent_name : NULL;
 	init.num_parents = parent_name ? 1 : 0;
 	init.ops = ops;
diff --git a/drivers/clk/mediatek/clk-gate.h b/drivers/clk/mediatek/clk-gate.h
index 72ef89b..631cd3a 100644
--- a/drivers/clk/mediatek/clk-gate.h
+++ b/drivers/clk/mediatek/clk-gate.h
@@ -47,6 +47,7 @@ struct clk *mtk_clk_register_gate(
 		int clr_ofs,
 		int sta_ofs,
 		u8 bit,
-		const struct clk_ops *ops);
+		const struct clk_ops *ops,
+		unsigned int flags);
 
 #endif /* __DRV_CLK_GATE_H */
diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c
index 50becd0..15310f8 100644
--- a/drivers/clk/mediatek/clk-mtk.c
+++ b/drivers/clk/mediatek/clk-mtk.c
@@ -131,7 +131,8 @@ int mtk_clk_register_gates(struct device_node *node,
 				gate->regs->set_ofs,
 				gate->regs->clr_ofs,
 				gate->regs->sta_ofs,
-				gate->shift, gate->ops);
+				gate->shift, gate->ops,
+				gate->flags);
 
 		if (IS_ERR(clk)) {
 			pr_err("Failed to register clk %s: %ld\n",
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index 61693f6..c3285ff 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -217,6 +217,7 @@ struct mtk_gate {
 	const struct mtk_gate_regs *regs;
 	int shift;
 	const struct clk_ops *ops;
+	unsigned int flags;
 };
 
 int mtk_clk_register_gates(struct device_node *node,
-- 
1.9.1

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