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path: root/drivers/clk/visconti/pll.c
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Diffstat (limited to 'drivers/clk/visconti/pll.c')
-rw-r--r--drivers/clk/visconti/pll.c31
1 files changed, 18 insertions, 13 deletions
diff --git a/drivers/clk/visconti/pll.c b/drivers/clk/visconti/pll.c
index 1f3234f22667..681721d85032 100644
--- a/drivers/clk/visconti/pll.c
+++ b/drivers/clk/visconti/pll.c
@@ -100,20 +100,25 @@ static unsigned long visconti_get_pll_rate_from_data(struct visconti_pll *pll,
return rate_table[0].rate;
}
-static long visconti_pll_round_rate(struct clk_hw *hw,
- unsigned long rate, unsigned long *prate)
+static int visconti_pll_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
{
struct visconti_pll *pll = to_visconti_pll(hw);
const struct visconti_pll_rate_table *rate_table = pll->rate_table;
int i;
- /* Assumming rate_table is in descending order */
+ /* Assuming rate_table is in descending order */
for (i = 0; i < pll->rate_count; i++)
- if (rate >= rate_table[i].rate)
- return rate_table[i].rate;
+ if (req->rate >= rate_table[i].rate) {
+ req->rate = rate_table[i].rate;
+
+ return 0;
+ }
/* return minimum supported value */
- return rate_table[i - 1].rate;
+ req->rate = rate_table[i - 1].rate;
+
+ return 0;
}
static unsigned long visconti_pll_recalc_rate(struct clk_hw *hw,
@@ -232,7 +237,7 @@ static const struct clk_ops visconti_pll_ops = {
.enable = visconti_pll_enable,
.disable = visconti_pll_disable,
.is_enabled = visconti_pll_is_enabled,
- .round_rate = visconti_pll_round_rate,
+ .determine_rate = visconti_pll_determine_rate,
.recalc_rate = visconti_pll_recalc_rate,
.set_rate = visconti_pll_set_rate,
};
@@ -262,9 +267,9 @@ static struct clk_hw *visconti_register_pll(struct visconti_pll_provider *ctx,
for (len = 0; rate_table[len].rate != 0; )
len++;
pll->rate_count = len;
- pll->rate_table = kmemdup(rate_table,
- pll->rate_count * sizeof(struct visconti_pll_rate_table),
- GFP_KERNEL);
+ pll->rate_table = kmemdup_array(rate_table,
+ pll->rate_count, sizeof(*pll->rate_table),
+ GFP_KERNEL);
WARN(!pll->rate_table, "%s: could not allocate rate table for %s\n", __func__, name);
init.ops = &visconti_pll_ops;
@@ -329,12 +334,12 @@ struct visconti_pll_provider * __init visconti_init_pll(struct device_node *np,
if (!ctx)
return ERR_PTR(-ENOMEM);
- for (i = 0; i < nr_plls; ++i)
- ctx->clk_data.hws[i] = ERR_PTR(-ENOENT);
-
ctx->node = np;
ctx->reg_base = base;
ctx->clk_data.num = nr_plls;
+ for (i = 0; i < nr_plls; ++i)
+ ctx->clk_data.hws[i] = ERR_PTR(-ENOENT);
+
return ctx;
}