summaryrefslogtreecommitdiffstats
path: root/drivers/clk/hisilicon/clk.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--drivers/clk/hisilicon/clk.h157
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h
new file mode 100644
index 000000000..7a9b42e1b
--- /dev/null
+++ b/drivers/clk/hisilicon/clk.h
@@ -0,0 +1,157 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Hisilicon Hi3620 clock gate driver
+ *
+ * Copyright (c) 2012-2013 Hisilicon Limited.
+ * Copyright (c) 2012-2013 Linaro Limited.
+ *
+ * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
+ * Xin Li <li.xin@linaro.org>
+ */
+
+#ifndef __HISI_CLK_H
+#define __HISI_CLK_H
+
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+
+struct platform_device;
+
+struct hisi_clock_data {
+ struct clk_onecell_data clk_data;
+ void __iomem *base;
+};
+
+struct hisi_fixed_rate_clock {
+ unsigned int id;
+ char *name;
+ const char *parent_name;
+ unsigned long flags;
+ unsigned long fixed_rate;
+};
+
+struct hisi_fixed_factor_clock {
+ unsigned int id;
+ char *name;
+ const char *parent_name;
+ unsigned long mult;
+ unsigned long div;
+ unsigned long flags;
+};
+
+struct hisi_mux_clock {
+ unsigned int id;
+ const char *name;
+ const char *const *parent_names;
+ u8 num_parents;
+ unsigned long flags;
+ unsigned long offset;
+ u8 shift;
+ u8 width;
+ u8 mux_flags;
+ const u32 *table;
+ const char *alias;
+};
+
+struct hisi_phase_clock {
+ unsigned int id;
+ const char *name;
+ const char *parent_names;
+ unsigned long flags;
+ unsigned long offset;
+ u8 shift;
+ u8 width;
+ u32 *phase_degrees;
+ u32 *phase_regvals;
+ u8 phase_num;
+};
+
+struct hisi_divider_clock {
+ unsigned int id;
+ const char *name;
+ const char *parent_name;
+ unsigned long flags;
+ unsigned long offset;
+ u8 shift;
+ u8 width;
+ u8 div_flags;
+ struct clk_div_table *table;
+ const char *alias;
+};
+
+struct hi6220_divider_clock {
+ unsigned int id;
+ const char *name;
+ const char *parent_name;
+ unsigned long flags;
+ unsigned long offset;
+ u8 shift;
+ u8 width;
+ u32 mask_bit;
+ const char *alias;
+};
+
+struct hisi_gate_clock {
+ unsigned int id;
+ const char *name;
+ const char *parent_name;
+ unsigned long flags;
+ unsigned long offset;
+ u8 bit_idx;
+ u8 gate_flags;
+ const char *alias;
+};
+
+struct clk *hisi_register_clkgate_sep(struct device *, const char *,
+ const char *, unsigned long,
+ void __iomem *, u8,
+ u8, spinlock_t *);
+struct clk *hi6220_register_clkdiv(struct device *dev, const char *name,
+ const char *parent_name, unsigned long flags, void __iomem *reg,
+ u8 shift, u8 width, u32 mask_bit, spinlock_t *lock);
+
+struct hisi_clock_data *hisi_clk_alloc(struct platform_device *, int);
+struct hisi_clock_data *hisi_clk_init(struct device_node *, int);
+int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *,
+ int, struct hisi_clock_data *);
+int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *,
+ int, struct hisi_clock_data *);
+int hisi_clk_register_mux(const struct hisi_mux_clock *, int,
+ struct hisi_clock_data *);
+struct clk *clk_register_hisi_phase(struct device *dev,
+ const struct hisi_phase_clock *clks,
+ void __iomem *base, spinlock_t *lock);
+int hisi_clk_register_phase(struct device *dev,
+ const struct hisi_phase_clock *clks,
+ int nums, struct hisi_clock_data *data);
+int hisi_clk_register_divider(const struct hisi_divider_clock *,
+ int, struct hisi_clock_data *);
+int hisi_clk_register_gate(const struct hisi_gate_clock *,
+ int, struct hisi_clock_data *);
+void hisi_clk_register_gate_sep(const struct hisi_gate_clock *,
+ int, struct hisi_clock_data *);
+void hi6220_clk_register_divider(const struct hi6220_divider_clock *,
+ int, struct hisi_clock_data *);
+
+#define hisi_clk_unregister(type) \
+static inline \
+void hisi_clk_unregister_##type(const struct hisi_##type##_clock *clks, \
+ int nums, struct hisi_clock_data *data) \
+{ \
+ struct clk **clocks = data->clk_data.clks; \
+ int i; \
+ for (i = 0; i < nums; i++) { \
+ int id = clks[i].id; \
+ if (clocks[id]) \
+ clk_unregister_##type(clocks[id]); \
+ } \
+}
+
+hisi_clk_unregister(fixed_rate)
+hisi_clk_unregister(fixed_factor)
+hisi_clk_unregister(mux)
+hisi_clk_unregister(divider)
+hisi_clk_unregister(gate)
+
+#endif /* __HISI_CLK_H */