summaryrefslogtreecommitdiffstats
path: root/drivers/clk/sunxi/clk-factors.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/clk/sunxi/clk-factors.h')
-rw-r--r--drivers/clk/sunxi/clk-factors.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/clk/sunxi/clk-factors.h b/drivers/clk/sunxi/clk-factors.h
new file mode 100644
index 0000000000..7ad2ca924d
--- /dev/null
+++ b/drivers/clk/sunxi/clk-factors.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __MACH_SUNXI_CLK_FACTORS_H
+#define __MACH_SUNXI_CLK_FACTORS_H
+
+#include <linux/clk-provider.h>
+#include <linux/spinlock.h>
+
+#define SUNXI_FACTORS_NOT_APPLICABLE (0)
+
+struct clk_factors_config {
+ u8 nshift;
+ u8 nwidth;
+ u8 kshift;
+ u8 kwidth;
+ u8 mshift;
+ u8 mwidth;
+ u8 pshift;
+ u8 pwidth;
+ u8 n_start;
+};
+
+struct factors_request {
+ unsigned long rate;
+ unsigned long parent_rate;
+ u8 parent_index;
+ u8 n;
+ u8 k;
+ u8 m;
+ u8 p;
+};
+
+struct factors_data {
+ int enable;
+ int mux;
+ int muxmask;
+ const struct clk_factors_config *table;
+ void (*getter)(struct factors_request *req);
+ void (*recalc)(struct factors_request *req);
+ const char *name;
+};
+
+struct clk_factors {
+ struct clk_hw hw;
+ void __iomem *reg;
+ const struct clk_factors_config *config;
+ void (*get_factors)(struct factors_request *req);
+ void (*recalc)(struct factors_request *req);
+ spinlock_t *lock;
+ /* for cleanup */
+ struct clk_mux *mux;
+ struct clk_gate *gate;
+};
+
+struct clk *sunxi_factors_register(struct device_node *node,
+ const struct factors_data *data,
+ spinlock_t *lock,
+ void __iomem *reg);
+struct clk *sunxi_factors_register_critical(struct device_node *node,
+ const struct factors_data *data,
+ spinlock_t *lock,
+ void __iomem *reg);
+
+void sunxi_factors_unregister(struct device_node *node, struct clk *clk);
+
+#endif