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-rw-r--r--drivers/clk/mediatek/clk-gate.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-gate.h b/drivers/clk/mediatek/clk-gate.h
new file mode 100644
index 000000000..d9897ef53
--- /dev/null
+++ b/drivers/clk/mediatek/clk-gate.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: James Liao <jamesjj.liao@mediatek.com>
+ */
+
+#ifndef __DRV_CLK_GATE_H
+#define __DRV_CLK_GATE_H
+
+#include <linux/types.h>
+
+struct clk;
+struct clk_hw_onecell_data;
+struct clk_ops;
+struct device;
+struct device_node;
+
+extern const struct clk_ops mtk_clk_gate_ops_setclr;
+extern const struct clk_ops mtk_clk_gate_ops_setclr_inv;
+extern const struct clk_ops mtk_clk_gate_ops_no_setclr;
+extern const struct clk_ops mtk_clk_gate_ops_no_setclr_inv;
+
+struct mtk_gate_regs {
+ u32 sta_ofs;
+ u32 clr_ofs;
+ u32 set_ofs;
+};
+
+struct mtk_gate {
+ int id;
+ const char *name;
+ const char *parent_name;
+ const struct mtk_gate_regs *regs;
+ int shift;
+ const struct clk_ops *ops;
+ unsigned long flags;
+};
+
+#define GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, \
+ _ops, _flags) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = _regs, \
+ .shift = _shift, \
+ .ops = _ops, \
+ .flags = _flags, \
+ }
+
+#define GATE_MTK(_id, _name, _parent, _regs, _shift, _ops) \
+ GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, _ops, 0)
+
+int mtk_clk_register_gates(struct device_node *node,
+ const struct mtk_gate *clks, int num,
+ struct clk_hw_onecell_data *clk_data);
+
+int mtk_clk_register_gates_with_dev(struct device_node *node,
+ const struct mtk_gate *clks, int num,
+ struct clk_hw_onecell_data *clk_data,
+ struct device *dev);
+
+void mtk_clk_unregister_gates(const struct mtk_gate *clks, int num,
+ struct clk_hw_onecell_data *clk_data);
+
+#endif /* __DRV_CLK_GATE_H */