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path: root/drivers/clk/meson/clk-cpu.c
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Diffstat (limited to 'drivers/clk/meson/clk-cpu.c')
-rw-r--r--drivers/clk/meson/clk-cpu.c73
1 files changed, 4 insertions, 69 deletions
diff --git a/drivers/clk/meson/clk-cpu.c b/drivers/clk/meson/clk-cpu.c
index f7c30ea54ca8..f8b2b7efd016 100644
--- a/drivers/clk/meson/clk-cpu.c
+++ b/drivers/clk/meson/clk-cpu.c
@@ -51,13 +51,6 @@
#include "clkc.h"
-struct meson_clk_cpu {
- struct notifier_block clk_nb;
- const struct clk_div_table *div_table;
- struct clk_hw hw;
- void __iomem *base;
- u16 reg_off;
-};
#define to_meson_clk_cpu_hw(_hw) container_of(_hw, struct meson_clk_cpu, hw)
#define to_meson_clk_cpu_nb(_nb) container_of(_nb, struct meson_clk_cpu, clk_nb)
@@ -119,6 +112,7 @@ static unsigned long meson_clk_cpu_recalc_rate(struct clk_hw *hw,
return parent_rate / div;
}
+/* FIXME MUX1 & MUX2 should be struct clk_hw objects */
static int meson_clk_cpu_pre_rate_change(struct meson_clk_cpu *clk_cpu,
struct clk_notifier_data *ndata)
{
@@ -140,6 +134,7 @@ static int meson_clk_cpu_pre_rate_change(struct meson_clk_cpu *clk_cpu,
return 0;
}
+/* FIXME MUX1 & MUX2 should be struct clk_hw objects */
static int meson_clk_cpu_post_rate_change(struct meson_clk_cpu *clk_cpu,
struct clk_notifier_data *ndata)
{
@@ -161,7 +156,7 @@ static int meson_clk_cpu_post_rate_change(struct meson_clk_cpu *clk_cpu,
* PLL clock is to be changed. We use the xtal input as temporary parent
* while the PLL frequency is stabilized.
*/
-static int meson_clk_cpu_notifier_cb(struct notifier_block *nb,
+int meson_clk_cpu_notifier_cb(struct notifier_block *nb,
unsigned long event, void *data)
{
struct clk_notifier_data *ndata = data;
@@ -176,68 +171,8 @@ static int meson_clk_cpu_notifier_cb(struct notifier_block *nb,
return notifier_from_errno(ret);
}
-static const struct clk_ops meson_clk_cpu_ops = {
+const struct clk_ops meson_clk_cpu_ops = {
.recalc_rate = meson_clk_cpu_recalc_rate,
.round_rate = meson_clk_cpu_round_rate,
.set_rate = meson_clk_cpu_set_rate,
};
-
-struct clk *meson_clk_register_cpu(const struct clk_conf *clk_conf,
- void __iomem *reg_base,
- spinlock_t *lock)
-{
- struct clk *clk;
- struct clk *pclk;
- struct meson_clk_cpu *clk_cpu;
- struct clk_init_data init;
- int ret;
-
- clk_cpu = kzalloc(sizeof(*clk_cpu), GFP_KERNEL);
- if (!clk_cpu)
- return ERR_PTR(-ENOMEM);
-
- clk_cpu->base = reg_base;
- clk_cpu->reg_off = clk_conf->reg_off;
- clk_cpu->div_table = clk_conf->conf.div_table;
- clk_cpu->clk_nb.notifier_call = meson_clk_cpu_notifier_cb;
-
- init.name = clk_conf->clk_name;
- init.ops = &meson_clk_cpu_ops;
- init.flags = clk_conf->flags | CLK_GET_RATE_NOCACHE;
- init.flags |= CLK_SET_RATE_PARENT;
- init.parent_names = clk_conf->clks_parent;
- init.num_parents = 1;
-
- clk_cpu->hw.init = &init;
-
- pclk = __clk_lookup(clk_conf->clks_parent[0]);
- if (!pclk) {
- pr_err("%s: could not lookup parent clock %s\n",
- __func__, clk_conf->clks_parent[0]);
- ret = -EINVAL;
- goto free_clk;
- }
-
- ret = clk_notifier_register(pclk, &clk_cpu->clk_nb);
- if (ret) {
- pr_err("%s: failed to register clock notifier for %s\n",
- __func__, clk_conf->clk_name);
- goto free_clk;
- }
-
- clk = clk_register(NULL, &clk_cpu->hw);
- if (IS_ERR(clk)) {
- ret = PTR_ERR(clk);
- goto unregister_clk_nb;
- }
-
- return clk;
-
-unregister_clk_nb:
- clk_notifier_unregister(pclk, &clk_cpu->clk_nb);
-free_clk:
- kfree(clk_cpu);
-
- return ERR_PTR(ret);
-}
-