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clk: max9485: convert from round_rate() to determine_rate()

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The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate() using the Coccinelle semantic patch
on the cover letter of this series.

Signed-off-by: Brian Masney <bmasney@redhat.com>
This commit is contained in:
Brian Masney
2025-08-11 11:18:19 -04:00
parent bb40a2ef4f
commit 4f8ccd9287
1 changed files with 17 additions and 10 deletions
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27
drivers/clk/clk-max9485.c
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@@ -159,29 +159,32 @@ static unsigned long max9485_clkout_recalc_rate(struct clk_hw *hw,
return 0;
}
static long max9485_clkout_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate)
static int max9485_clkout_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
const struct max9485_rate *curr, *prev = NULL;
for (curr = max9485_rates; curr->out != 0; curr++) {
/* Exact matches */
if (curr->out == rate)
return rate;
if (curr->out == req->rate)
return 0;
/*
* Find the first entry that has a frequency higher than the
* requested one.
*/
if (curr->out > rate) {
if (curr->out > req->rate) {
unsigned int mid;
/*
* If this is the first entry, clamp the value to the
* lowest possible frequency.
*/
if (!prev)
return curr->out;
if (!prev) {
req->rate = curr->out;
return 0;
}
/*
* Otherwise, determine whether the previous entry or
@@ -189,14 +192,18 @@ static long max9485_clkout_round_rate(struct clk_hw *hw, unsigned long rate,
*/
mid = prev->out + ((curr->out - prev->out) / 2);
return (mid > rate) ? prev->out : curr->out;
req->rate = mid > req->rate ? prev->out : curr->out;
return 0;
}
prev = curr;
}
/* If the last entry was still too high, clamp the value */
return prev->out;
req->rate = prev->out;
return 0;
}
struct max9485_clk {
@@ -221,7 +228,7 @@ static const struct max9485_clk max9485_clks[MAX9485_NUM_CLKS] = {
.parent_index = -1,
.ops = {
.set_rate = max9485_clkout_set_rate,
.round_rate = max9485_clkout_round_rate,
.determine_rate = max9485_clkout_determine_rate,
.recalc_rate = max9485_clkout_recalc_rate,
},
},