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Diffstat (limited to 'arch/arm/mach-imx/clk-cpu.c')
-rw-r--r--arch/arm/mach-imx/clk-cpu.c107
1 files changed, 0 insertions, 107 deletions
diff --git a/arch/arm/mach-imx/clk-cpu.c b/arch/arm/mach-imx/clk-cpu.c
deleted file mode 100644
index aa1c345..0000000
--- a/arch/arm/mach-imx/clk-cpu.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (c) 2014 Lucas Stach <l.stach@pengutronix.de>, Pengutronix
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 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/slab.h>
-
-struct clk_cpu {
- struct clk_hw hw;
- struct clk *div;
- struct clk *mux;
- struct clk *pll;
- struct clk *step;
-};
-
-static inline struct clk_cpu *to_clk_cpu(struct clk_hw *hw)
-{
- return container_of(hw, struct clk_cpu, hw);
-}
-
-static unsigned long clk_cpu_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
-{
- struct clk_cpu *cpu = to_clk_cpu(hw);
-
- return clk_get_rate(cpu->div);
-}
-
-static long clk_cpu_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *prate)
-{
- struct clk_cpu *cpu = to_clk_cpu(hw);
-
- return clk_round_rate(cpu->pll, rate);
-}
-
-static int clk_cpu_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
-{
- struct clk_cpu *cpu = to_clk_cpu(hw);
- int ret;
-
- /* switch to PLL bypass clock */
- ret = clk_set_parent(cpu->mux, cpu->step);
- if (ret)
- return ret;
-
- /* reprogram PLL */
- ret = clk_set_rate(cpu->pll, rate);
- if (ret) {
- clk_set_parent(cpu->mux, cpu->pll);
- return ret;
- }
- /* switch back to PLL clock */
- clk_set_parent(cpu->mux, cpu->pll);
-
- /* Ensure the divider is what we expect */
- clk_set_rate(cpu->div, rate);
-
- return 0;
-}
-
-static const struct clk_ops clk_cpu_ops = {
- .recalc_rate = clk_cpu_recalc_rate,
- .round_rate = clk_cpu_round_rate,
- .set_rate = clk_cpu_set_rate,
-};
-
-struct clk *imx_clk_cpu(const char *name, const char *parent_name,
- struct clk *div, struct clk *mux, struct clk *pll,
- struct clk *step)
-{
- struct clk_cpu *cpu;
- struct clk *clk;
- struct clk_init_data init;
-
- cpu = kzalloc(sizeof(*cpu), GFP_KERNEL);
- if (!cpu)
- return ERR_PTR(-ENOMEM);
-
- cpu->div = div;
- cpu->mux = mux;
- cpu->pll = pll;
- cpu->step = step;
-
- init.name = name;
- init.ops = &clk_cpu_ops;
- init.flags = 0;
- init.parent_names = &parent_name;
- init.num_parents = 1;
-
- cpu->hw.init = &init;
-
- clk = clk_register(NULL, &cpu->hw);
- if (IS_ERR(clk))
- kfree(cpu);
-
- return clk;
-}