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clk: asm9260: Migrate to clk_hw based registration and OF APIs 

Now that we have clk_hw based provider APIs to register clks, we
can get rid of struct clk pointers while registering clks in
these drivers, allowing us to move closer to a clear split of
consumer and provider clk APIs.

Cc: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Stephen Boyd 2016-06-01 16:15:07 -07:00 committed by Stephen Boyd
parent f37fccce4c
commit 78cf5555e9
1 changed files with 18 additions and 13 deletions
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31
drivers/clk/clk-asm9260.c
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@ -68,8 +68,7 @@
#define HW_LCDCLKDIV 0x01fc
#define HW_ADCANACLKDIV 0x0200
static struct clk *clks[MAX_CLKS];
static struct clk_onecell_data clk_data;
static struct clk_hw_onecell_data *clk_data;
static DEFINE_SPINLOCK(asm9260_clk_lock);
struct asm9260_div_clk {
@ -267,12 +266,20 @@ static struct asm9260_mux_clock asm9260_mux_clks[] __initdata = {
static void __init asm9260_acc_init(struct device_node *np)
{
struct clk *clk;
struct clk_hw *hw;
struct clk_hw **hws;
const char *ref_clk, *pll_clk = "pll";
u32 rate;
int n;
u32 accuracy = 0;
clk_data = kzalloc(sizeof(*clk_data) +
sizeof(*clk_data->hws) * MAX_CLKS, GFP_KERNEL);
if (!clk_data)
return;
clk_data->num = MAX_CLKS;
hws = clk_data->hws;
base = of_io_request_and_map(np, 0, np->name);
if (IS_ERR(base))
panic("%s: unable to map resource", np->name);
@ -282,10 +289,10 @@ static void __init asm9260_acc_init(struct device_node *np)
ref_clk = of_clk_get_parent_name(np, 0);
accuracy = clk_get_accuracy(__clk_lookup(ref_clk));
clk = clk_register_fixed_rate_with_accuracy(NULL, pll_clk,
hw = clk_hw_register_fixed_rate_with_accuracy(NULL, pll_clk,
ref_clk, 0, rate, accuracy);
if (IS_ERR(clk))
if (IS_ERR(hw))
panic("%s: can't register REFCLK. Check DT!", np->name);
for (n = 0; n < ARRAY_SIZE(asm9260_mux_clks); n++) {
@ -293,7 +300,7 @@ static void __init asm9260_acc_init(struct device_node *np)
mc->parent_names[0] = ref_clk;
mc->parent_names[1] = pll_clk;
clk = clk_register_mux_table(NULL, mc->name, mc->parent_names,
hw = clk_hw_register_mux_table(NULL, mc->name, mc->parent_names,
mc->num_parents, mc->flags, base + mc->offset,
0, mc->mask, 0, mc->table, &asm9260_clk_lock);
}
@ -302,7 +309,7 @@ static void __init asm9260_acc_init(struct device_node *np)
for (n = 0; n < ARRAY_SIZE(asm9260_mux_gates); n++) {
const struct asm9260_gate_data *gd = &asm9260_mux_gates[n];
clk = clk_register_gate(NULL, gd->name,
hw = clk_hw_register_gate(NULL, gd->name,
gd->parent_name, gd->flags | CLK_SET_RATE_PARENT,
base + gd->reg, gd->bit_idx, 0, &asm9260_clk_lock);
}
@ -311,7 +318,7 @@ static void __init asm9260_acc_init(struct device_node *np)
for (n = 0; n < ARRAY_SIZE(asm9260_div_clks); n++) {
const struct asm9260_div_clk *dc = &asm9260_div_clks[n];
clks[dc->idx] = clk_register_divider(NULL, dc->name,
hws[dc->idx] = clk_hw_register_divider(NULL, dc->name,
dc->parent_name, CLK_SET_RATE_PARENT,
base + dc->reg, 0, 8, CLK_DIVIDER_ONE_BASED,
&asm9260_clk_lock);
@ -321,14 +328,14 @@ static void __init asm9260_acc_init(struct device_node *np)
for (n = 0; n < ARRAY_SIZE(asm9260_ahb_gates); n++) {
const struct asm9260_gate_data *gd = &asm9260_ahb_gates[n];
clks[gd->idx] = clk_register_gate(NULL, gd->name,
hws[gd->idx] = clk_hw_register_gate(NULL, gd->name,
gd->parent_name, gd->flags, base + gd->reg,
gd->bit_idx, 0, &asm9260_clk_lock);
}
/* check for errors on leaf clocks */
for (n = 0; n < MAX_CLKS; n++) {
if (!IS_ERR(clks[n]))
if (!IS_ERR(hws[n]))
continue;
pr_err("%s: Unable to register leaf clock %d\n",
@ -337,9 +344,7 @@ static void __init asm9260_acc_init(struct device_node *np)
}
/* register clk-provider */
clk_data.clks = clks;
clk_data.clk_num = MAX_CLKS;
of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
return;
fail:
iounmap(base);