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clk: rockchip: Export some clock common APIs for module drivers

Browse source 
This is used by the Rockchip clk driver, export it to allow that
driver to be compiled as a module.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200914022225.23613-5-zhangqing@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Elaine Zhang 2020-09-14 10:22:23 +08:00 committed by Heiko Stuebner
parent 37353491d1
commit ea650c2661
1 changed files with 29 additions and 21 deletions
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50
drivers/clk/rockchip/clk.c
View file

@ -360,8 +360,9 @@ static struct clk *rockchip_clk_register_factor_branch(const char *name,
return hw->clk;
}
struct rockchip_clk_provider * __init rockchip_clk_init(struct device_node *np,
void __iomem *base, unsigned long nr_clks)
struct rockchip_clk_provider *rockchip_clk_init(struct device_node *np,
void __iomem *base,
unsigned long nr_clks)
{
struct rockchip_clk_provider *ctx;
struct clk **clk_table;
@ -393,14 +394,16 @@ struct rockchip_clk_provider * __init rockchip_clk_init(struct device_node *np,
kfree(ctx);
return ERR_PTR(-ENOMEM);
}
EXPORT_SYMBOL_GPL(rockchip_clk_init);
void __init rockchip_clk_of_add_provider(struct device_node *np,
struct rockchip_clk_provider *ctx)
void rockchip_clk_of_add_provider(struct device_node *np,
struct rockchip_clk_provider *ctx)
{
if (of_clk_add_provider(np, of_clk_src_onecell_get,
&ctx->clk_data))
pr_err("%s: could not register clk provider\n", __func__);
}
EXPORT_SYMBOL_GPL(rockchip_clk_of_add_provider);
void rockchip_clk_add_lookup(struct rockchip_clk_provider *ctx,
struct clk *clk, unsigned int id)
@ -408,8 +411,9 @@ void rockchip_clk_add_lookup(struct rockchip_clk_provider *ctx,
if (ctx->clk_data.clks && id)
ctx->clk_data.clks[id] = clk;
}
EXPORT_SYMBOL_GPL(rockchip_clk_add_lookup);
void __init rockchip_clk_register_plls(struct rockchip_clk_provider *ctx,
void rockchip_clk_register_plls(struct rockchip_clk_provider *ctx,
struct rockchip_pll_clock *list,
unsigned int nr_pll, int grf_lock_offset)
{
@ -432,11 +436,11 @@ void __init rockchip_clk_register_plls(struct rockchip_clk_provider *ctx,
rockchip_clk_add_lookup(ctx, clk, list->id);
}
}
EXPORT_SYMBOL_GPL(rockchip_clk_register_plls);
void __init rockchip_clk_register_branches(
struct rockchip_clk_provider *ctx,
struct rockchip_clk_branch *list,
unsigned int nr_clk)
void rockchip_clk_register_branches(struct rockchip_clk_provider *ctx,
struct rockchip_clk_branch *list,
unsigned int nr_clk)
{
struct clk *clk = NULL;
unsigned int idx;
@ -565,14 +569,15 @@ void __init rockchip_clk_register_branches(
rockchip_clk_add_lookup(ctx, clk, list->id);
}
}
EXPORT_SYMBOL_GPL(rockchip_clk_register_branches);
void __init rockchip_clk_register_armclk(struct rockchip_clk_provider *ctx,
unsigned int lookup_id,
const char *name, const char *const *parent_names,
u8 num_parents,
const struct rockchip_cpuclk_reg_data *reg_data,
const struct rockchip_cpuclk_rate_table *rates,
int nrates)
void rockchip_clk_register_armclk(struct rockchip_clk_provider *ctx,
unsigned int lookup_id,
const char *name, const char *const *parent_names,
u8 num_parents,
const struct rockchip_cpuclk_reg_data *reg_data,
const struct rockchip_cpuclk_rate_table *rates,
int nrates)
{
struct clk *clk;
@ -587,9 +592,10 @@ void __init rockchip_clk_register_armclk(struct rockchip_clk_provider *ctx,
rockchip_clk_add_lookup(ctx, clk, lookup_id);
}
EXPORT_SYMBOL_GPL(rockchip_clk_register_armclk);
void __init rockchip_clk_protect_critical(const char *const clocks[],
int nclocks)
void rockchip_clk_protect_critical(const char *const clocks[],
int nclocks)
{
int i;
@ -601,6 +607,7 @@ void __init rockchip_clk_protect_critical(const char *const clocks[],
clk_prepare_enable(clk);
}
}
EXPORT_SYMBOL_GPL(rockchip_clk_protect_critical);
static void __iomem *rst_base;
static unsigned int reg_restart;
@ -620,10 +627,10 @@ static struct notifier_block rockchip_restart_handler = {
.priority = 128,
};
void __init
void
rockchip_register_restart_notifier(struct rockchip_clk_provider *ctx,
unsigned int reg,
void (*cb)(void))
unsigned int reg,
void (*cb)(void))
{
int ret;
@ -635,3 +642,4 @@ rockchip_register_restart_notifier(struct rockchip_clk_provider *ctx,
pr_err("%s: cannot register restart handler, %d\n",
__func__, ret);
}
EXPORT_SYMBOL_GPL(rockchip_register_restart_notifier);