target/linux/ipq806x/patches-5.10/097-3-clk-qcom-krait-add-missing-enable-disable.patch

   1 From f8fdbecdaca97f0f2eebd77256e2eca4a8da6c39 Mon Sep 17 00:00:00 2001
   2 From: Ansuel Smith <ansuelsmth@gmail.com>
   3 Date: Sun, 7 Feb 2021 17:08:16 +0100
   4 Subject: [PATCH 3/4] clk: qcom: krait: add missing enable disable
   5
   6 Add missing enable disable mux function. Add extra check to
   7 div2_round_rate.
   8
   9 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
  10 ---
  11  drivers/clk/qcom/clk-krait.c | 27 +++++++++++++++++++++++++--
  12  1 file changed, 25 insertions(+), 2 deletions(-)
  13
  14 diff --git a/drivers/clk/qcom/clk-krait.c b/drivers/clk/qcom/clk-krait.c
  15 index 59f1af415b58..ba796b621669 100644
  16 --- a/drivers/clk/qcom/clk-krait.c
  17 +++ b/drivers/clk/qcom/clk-krait.c
  18 @@ -68,7 +68,25 @@ static u8 krait_mux_get_parent(struct clk_hw *hw)
  19         return clk_mux_val_to_index(hw, mux->parent_map, 0, sel);
  20  }
  21
  22 +static int krait_mux_enable(struct clk_hw *hw)
  23 +{
  24 +       struct krait_mux_clk *mux = to_krait_mux_clk(hw);
  25 +
  26 +       __krait_mux_set_sel(mux, mux->en_mask);
  27 +
  28 +       return 0;
  29 +}
  30 +
  31 +static void krait_mux_disable(struct clk_hw *hw)
  32 +{
  33 +       struct krait_mux_clk *mux = to_krait_mux_clk(hw);
  34 +
  35 +       __krait_mux_set_sel(mux, mux->safe_sel);
  36 +}
  37 +
  38  const struct clk_ops krait_mux_clk_ops = {
  39 +       .enable = krait_mux_enable,
  40 +       .disable = krait_mux_disable,
  41         .set_parent = krait_mux_set_parent,
  42         .get_parent = krait_mux_get_parent,
  43         .determine_rate = __clk_mux_determine_rate_closest,
  44 @@ -79,8 +97,13 @@ EXPORT_SYMBOL_GPL(krait_mux_clk_ops);
  45  static long krait_div2_round_rate(struct clk_hw *hw, unsigned long rate,
  46                                   unsigned long *parent_rate)
  47  {
  48 -       *parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), rate * 2);
  49 -       return DIV_ROUND_UP(*parent_rate, 2);
  50 +       struct clk_hw *hw_parent = clk_hw_get_parent(hw);
  51 +
  52 +       if (hw_parent) {
  53 +               *parent_rate = clk_hw_round_rate(hw_parent, rate * 2);
  54 +               return DIV_ROUND_UP(*parent_rate, 2);
  55 +       } else
  56 +               return -1;
  57  }
  58
  59  static int krait_div2_set_rate(struct clk_hw *hw, unsigned long rate,
  60 --
  61 2.29.2
  62