1 files changed, 85 insertions, 0 deletions

diff --git a/drivers/clk/sunxi-ng/ccu_common.h b/drivers/clk/sunxi-ng/ccu_common.h
new file mode 100644
index 000000000000..b3d9abfbd721
--- /dev/null
+++ b/drivers/clk/sunxi-ng/ccu_common.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2016 Maxime Ripard. All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _COMMON_H_
+#define _COMMON_H_
+
+#include <linux/compiler.h>
+#include <linux/clk-provider.h>
+
+#define CCU_FEATURE_FRACTIONAL          BIT(0)
+#define CCU_FEATURE_VARIABLE_PREDIV     BIT(1)
+#define CCU_FEATURE_FIXED_PREDIV        BIT(2)
+#define CCU_FEATURE_FIXED_POSTDIV       BIT(3)
+
+struct device_node;
+
+#define CLK_HW_INIT(_name, _parent, _ops, _flags)                       \
+        &(struct clk_init_data) {                                       \
+                .flags          = _flags,                               \
+                .name           = _name,                                \
+                .parent_names   = (const char *[]) { _parent },         \
+                .num_parents    = 1,                                    \
+                .ops            = _ops,                                 \
+        }
+
+#define CLK_HW_INIT_PARENTS(_name, _parents, _ops, _flags)              \
+        &(struct clk_init_data) {                                       \
+                .flags          = _flags,                               \
+                .name           = _name,                                \
+                .parent_names   = _parents,                             \
+                .num_parents    = ARRAY_SIZE(_parents),                 \
+                .ops            = _ops,                                 \
+        }
+
+#define CLK_FIXED_FACTOR(_struct, _name, _parent,                       \
+                        _div, _mult, _flags)                            \
+        struct clk_fixed_factor _struct = {                             \
+                .div            = _div,                                 \
+                .mult           = _mult,                                \
+                .hw.init        = CLK_HW_INIT(_name,                    \
+                                              _parent,                  \
+                                              &clk_fixed_factor_ops,    \
+                                              _flags),                  \
+        }
+
+struct ccu_common {
+        void __iomem    *base;
+        u16             reg;
+
+        unsigned long   features;
+        spinlock_t      *lock;
+        struct clk_hw   hw;
+};
+
+static inline struct ccu_common *hw_to_ccu_common(struct clk_hw *hw)
+{
+        return container_of(hw, struct ccu_common, hw);
+}
+
+struct sunxi_ccu_desc {
+        struct ccu_common               **ccu_clks;
+        unsigned long                   num_ccu_clks;
+
+        struct clk_hw_onecell_data      *hw_clks;
+
+        struct ccu_reset_map            *resets;
+        unsigned long                   num_resets;
+};
+
+void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock);
+
+int sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
+                    const struct sunxi_ccu_desc *desc);
+
+#endif /* _COMMON_H_ */