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MIPS: lantiq: add clk_round_rate() 

This adds a basic implementation of clk_round_rate()
The clk_round_rate() function is called by multiple drivers and
subsystems now and the lantiq clk driver is supposed to export this,
but doesn't do so, this causes linking problems like this one:
ERROR: "clk_round_rate" [drivers/media/v4l2-core/videodev.ko] undefined!

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: <stable@vger.kernel.org> # 4.1+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11358/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Hauke Mehrtens 2015-10-25 23:21:42 +01:00 committed by Ralf Baechle
parent e1e1611598
commit 500fab97c6
1 changed files with 17 additions and 0 deletions
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17
arch/mips/lantiq/clk.c
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@ -99,6 +99,23 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
}
EXPORT_SYMBOL(clk_set_rate);
long clk_round_rate(struct clk *clk, unsigned long rate)
{
if (unlikely(!clk_good(clk)))
return 0;
if (clk->rates && *clk->rates) {
unsigned long *r = clk->rates;
while (*r && (*r != rate))
r++;
if (!*r) {
return clk->rate;
}
}
return rate;
}
EXPORT_SYMBOL(clk_round_rate);
int clk_enable(struct clk *clk)
{
if (unlikely(!clk_good(clk)))