Messages in this thread | | | Date | Wed, 13 Apr 2022 20:28:45 +0300 | Subject | Re: [PATCH v6 13/18] clk: qcom: clk-krait: add enable disable ops | From | Dmitry Baryshkov <> |
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On 22/03/2022 02:15, Ansuel Smith wrote: > Add enable/disable ops for krait mux. On disable the mux is set to the > safe selection.
Why? It it used during system suspend? cpuidle? cpufreq?
> > Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> > --- > drivers/clk/qcom/clk-krait.c | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > > diff --git a/drivers/clk/qcom/clk-krait.c b/drivers/clk/qcom/clk-krait.c > index 7ba5dbc72bce..061af57b0ec2 100644 > --- a/drivers/clk/qcom/clk-krait.c > +++ b/drivers/clk/qcom/clk-krait.c > @@ -85,7 +85,25 @@ static u8 krait_mux_get_parent(struct clk_hw *hw) > return clk_mux_val_to_index(hw, mux->parent_map, 0, sel); > } > > +static int krait_mux_enable(struct clk_hw *hw) > +{ > + struct krait_mux_clk *mux = to_krait_mux_clk(hw); > + > + __krait_mux_set_sel(mux, mux->en_mask); > + > + return 0; > +} > + > +static void krait_mux_disable(struct clk_hw *hw) > +{ > + struct krait_mux_clk *mux = to_krait_mux_clk(hw); > + > + __krait_mux_set_sel(mux, mux->safe_sel); > +} > + > const struct clk_ops krait_mux_clk_ops = { > + .enable = krait_mux_enable, > + .disable = krait_mux_disable, > .set_parent = krait_mux_set_parent, > .get_parent = krait_mux_get_parent, > .determine_rate = __clk_mux_determine_rate_closest,
-- With best wishes Dmitry
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