1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/clk/spacemit/ccu_pll.h b/drivers/clk/spacemit/ccu_pll.h
new file mode 100644
index 000000000000..0592f4c3068c
--- /dev/null
+++ b/drivers/clk/spacemit/ccu_pll.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2024 SpacemiT Technology Co. Ltd
+ * Copyright (c) 2024-2025 Haylen Chu <heylenay@4d2.org>
+ */
+
+#ifndef _CCU_PLL_H_
+#define _CCU_PLL_H_
+
+#include <linux/clk-provider.h>
+
+#include "ccu_common.h"
+
+/**
+ * struct ccu_pll_rate_tbl - Structure mapping between PLL rate and register
+ * configuration.
+ *
+ * @rate:	PLL rate
+ * @swcr1:	Register value of PLLX_SW1_CTRL (PLLx_SWCR1).
+ * @swcr3:	Register value of the PLLx_SW3_CTRL's lowest 31 bits of
+ *		PLLx_SW3_CTRL (PLLx_SWCR3). This highest bit is for enabling
+ *		the PLL and not contained in this field.
+ */
+struct ccu_pll_rate_tbl {
+	unsigned long rate;
+	u32 swcr1;
+	u32 swcr3;
+};
+
+struct ccu_pll_config {
+	const struct ccu_pll_rate_tbl *rate_tbl;
+	u32 tbl_num;
+	u32 reg_lock;
+	u32 mask_lock;
+};
+
+#define CCU_PLL_RATE(_rate, _swcr1, _swcr3) \
+	{									\
+		.rate	= _rate,							\
+		.swcr1	= _swcr1,						\
+		.swcr3	= _swcr3,						\
+	}
+
+struct ccu_pll {
+	struct ccu_common	common;
+	struct ccu_pll_config	config;
+};
+
+#define CCU_PLL_CONFIG(_table, _reg_lock, _mask_lock) \
+	{									\
+		.rate_tbl	= _table,					\
+		.tbl_num	= ARRAY_SIZE(_table),				\
+		.reg_lock	= (_reg_lock),					\
+		.mask_lock	= (_mask_lock),					\
+	}
+
+#define CCU_PLL_HWINIT(_name, _flags)						\
+	(&(struct clk_init_data) {						\
+		.name		= #_name,					\
+		.ops		= &spacemit_ccu_pll_ops,			\
+		.parent_data	= &(struct clk_parent_data) { .index = 0 },	\
+		.num_parents	= 1,						\
+		.flags		= _flags,					\
+	})
+
+#define CCU_PLL_DEFINE(_name, _table, _reg_swcr1, _reg_swcr3, _reg_lock,	\
+		       _mask_lock, _flags)					\
+static struct ccu_pll _name = {							\
+	.config	= CCU_PLL_CONFIG(_table, _reg_lock, _mask_lock),		\
+	.common = {								\
+		.reg_swcr1	= _reg_swcr1,					\
+		.reg_swcr3	= _reg_swcr3,					\
+		.hw.init	= CCU_PLL_HWINIT(_name, _flags)			\
+	}									\
+}
+
+static inline struct ccu_pll *hw_to_ccu_pll(struct clk_hw *hw)
+{
+	struct ccu_common *common = hw_to_ccu_common(hw);
+
+	return container_of(common, struct ccu_pll, common);
+}
+
+extern const struct clk_ops spacemit_ccu_pll_ops;
+
+#endif