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-rw-r--r--arch/arm/mach-imx/clk-busy.c189
1 files changed, 0 insertions, 189 deletions
diff --git a/arch/arm/mach-imx/clk-busy.c b/arch/arm/mach-imx/clk-busy.c
deleted file mode 100644
index 4bb1bc419..000000000
--- a/arch/arm/mach-imx/clk-busy.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * Copyright 2012 Freescale Semiconductor, Inc.
- * Copyright 2012 Linaro Ltd.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <linux/clk.h>
-#include <linux/clk-provider.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-#include <linux/jiffies.h>
-#include <linux/err.h>
-#include "clk.h"
-
-static int clk_busy_wait(void __iomem *reg, u8 shift)
-{
- unsigned long timeout = jiffies + msecs_to_jiffies(10);
-
- while (readl_relaxed(reg) & (1 << shift))
- if (time_after(jiffies, timeout))
- return -ETIMEDOUT;
-
- return 0;
-}
-
-struct clk_busy_divider {
- struct clk_divider div;
- const struct clk_ops *div_ops;
- void __iomem *reg;
- u8 shift;
-};
-
-static inline struct clk_busy_divider *to_clk_busy_divider(struct clk_hw *hw)
-{
- struct clk_divider *div = container_of(hw, struct clk_divider, hw);
-
- return container_of(div, struct clk_busy_divider, div);
-}
-
-static unsigned long clk_busy_divider_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
-{
- struct clk_busy_divider *busy = to_clk_busy_divider(hw);
-
- return busy->div_ops->recalc_rate(&busy->div.hw, parent_rate);
-}
-
-static long clk_busy_divider_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *prate)
-{
- struct clk_busy_divider *busy = to_clk_busy_divider(hw);
-
- return busy->div_ops->round_rate(&busy->div.hw, rate, prate);
-}
-
-static int clk_busy_divider_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
-{
- struct clk_busy_divider *busy = to_clk_busy_divider(hw);
- int ret;
-
- ret = busy->div_ops->set_rate(&busy->div.hw, rate, parent_rate);
- if (!ret)
- ret = clk_busy_wait(busy->reg, busy->shift);
-
- return ret;
-}
-
-static struct clk_ops clk_busy_divider_ops = {
- .recalc_rate = clk_busy_divider_recalc_rate,
- .round_rate = clk_busy_divider_round_rate,
- .set_rate = clk_busy_divider_set_rate,
-};
-
-struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
- void __iomem *reg, u8 shift, u8 width,
- void __iomem *busy_reg, u8 busy_shift)
-{
- struct clk_busy_divider *busy;
- struct clk *clk;
- struct clk_init_data init;
-
- busy = kzalloc(sizeof(*busy), GFP_KERNEL);
- if (!busy)
- return ERR_PTR(-ENOMEM);
-
- busy->reg = busy_reg;
- busy->shift = busy_shift;
-
- busy->div.reg = reg;
- busy->div.shift = shift;
- busy->div.width = width;
- busy->div.lock = &imx_ccm_lock;
- busy->div_ops = &clk_divider_ops;
-
- init.name = name;
- init.ops = &clk_busy_divider_ops;
- init.flags = CLK_SET_RATE_PARENT;
- init.parent_names = &parent_name;
- init.num_parents = 1;
-
- busy->div.hw.init = &init;
-
- clk = clk_register(NULL, &busy->div.hw);
- if (IS_ERR(clk))
- kfree(busy);
-
- return clk;
-}
-
-struct clk_busy_mux {
- struct clk_mux mux;
- const struct clk_ops *mux_ops;
- void __iomem *reg;
- u8 shift;
-};
-
-static inline struct clk_busy_mux *to_clk_busy_mux(struct clk_hw *hw)
-{
- struct clk_mux *mux = container_of(hw, struct clk_mux, hw);
-
- return container_of(mux, struct clk_busy_mux, mux);
-}
-
-static u8 clk_busy_mux_get_parent(struct clk_hw *hw)
-{
- struct clk_busy_mux *busy = to_clk_busy_mux(hw);
-
- return busy->mux_ops->get_parent(&busy->mux.hw);
-}
-
-static int clk_busy_mux_set_parent(struct clk_hw *hw, u8 index)
-{
- struct clk_busy_mux *busy = to_clk_busy_mux(hw);
- int ret;
-
- ret = busy->mux_ops->set_parent(&busy->mux.hw, index);
- if (!ret)
- ret = clk_busy_wait(busy->reg, busy->shift);
-
- return ret;
-}
-
-static struct clk_ops clk_busy_mux_ops = {
- .get_parent = clk_busy_mux_get_parent,
- .set_parent = clk_busy_mux_set_parent,
-};
-
-struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
- u8 width, void __iomem *busy_reg, u8 busy_shift,
- const char **parent_names, int num_parents)
-{
- struct clk_busy_mux *busy;
- struct clk *clk;
- struct clk_init_data init;
-
- busy = kzalloc(sizeof(*busy), GFP_KERNEL);
- if (!busy)
- return ERR_PTR(-ENOMEM);
-
- busy->reg = busy_reg;
- busy->shift = busy_shift;
-
- busy->mux.reg = reg;
- busy->mux.shift = shift;
- busy->mux.mask = BIT(width) - 1;
- busy->mux.lock = &imx_ccm_lock;
- busy->mux_ops = &clk_mux_ops;
-
- init.name = name;
- init.ops = &clk_busy_mux_ops;
- init.flags = 0;
- init.parent_names = parent_names;
- init.num_parents = num_parents;
-
- busy->mux.hw.init = &init;
-
- clk = clk_register(NULL, &busy->mux.hw);
- if (IS_ERR(clk))
- kfree(busy);
-
- return clk;
-}