On Mon, Jun 07, 2021 at 05:46:12PM +0200, Ahmad Fatoum wrote:
>
>
> On 07.06.21 16:12, Sascha Hauer wrote:
> > Return successfully from clk_set_rate() when the rate is already the
> > desired one. This prevents a failure in clk_set_rate() when the current
> > clock doesn't have a set_rate hook.
> >
> > Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> > ---
> > drivers/clk/clk.c | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> > index 8b90f30486..ba726c342c 100644
> > --- a/drivers/clk/clk.c
> > +++ b/drivers/clk/clk.c
> > @@ -169,6 +169,9 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
> > if (IS_ERR(clk))
> > return PTR_ERR(clk);
> >
> > + if (clk_get_rate(clk) == clk_round_rate(clk, rate))
> > + return 0;
> > +
> > if (!clk->ops->set_rate)
> > return -ENOSYS;
>
>
> This means we can drop 459bf1fd31da ("ARM: clk: rk3188: don't set same
> clk rate twice"), right?
Indeed, yes. This part was lost with "clk: rockchip: Update to current
Linux" anyway, so nothing to do here.
Sascha
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