clk: meson: meson8b: use clk_hw_set_parent in the CPU clock notifier

Switch from clk_set_parent() to clk_hw_set_parent() now that we have a
way to configure a mux clock based on clk_hw pointers. This simplifies
the meson8b_cpu_clk_notifier_cb logic. No functional changes.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>

diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c
index 67e6691..d376f80 100644 (file)
--- a/drivers/clk/meson/meson8b.c
+++ b/drivers/clk/meson/meson8b.c
@@ -3585,7 +3585,7 @@ static const struct reset_control_ops meson8b_clk_reset_ops = {
 
 struct meson8b_nb_data {
        struct notifier_block nb;
-       struct clk_hw_onecell_data *onecell_data;
+       struct clk_hw *cpu_clk;
 };
 
 static int meson8b_cpu_clk_notifier_cb(struct notifier_block *nb,
@@ -3593,30 +3593,25 @@ static int meson8b_cpu_clk_notifier_cb(struct notifier_block *nb,
 {
        struct meson8b_nb_data *nb_data =
                container_of(nb, struct meson8b_nb_data, nb);
-       struct clk_hw **hws = nb_data->onecell_data->hws;
-       struct clk_hw *cpu_clk_hw, *parent_clk_hw;
-       struct clk *cpu_clk, *parent_clk;
+       struct clk_hw *parent_clk;
        int ret;
 
        switch (event) {
        case PRE_RATE_CHANGE:
-               parent_clk_hw = hws[CLKID_XTAL];
+               /* xtal */
+               parent_clk = clk_hw_get_parent_by_index(nb_data->cpu_clk, 0);
                break;
 
        case POST_RATE_CHANGE:
-               parent_clk_hw = hws[CLKID_CPU_SCALE_OUT_SEL];
+               /* cpu_scale_out_sel */
+               parent_clk = clk_hw_get_parent_by_index(nb_data->cpu_clk, 1);
                break;
 
        default:
                return NOTIFY_DONE;
        }
 
-       cpu_clk_hw = hws[CLKID_CPUCLK];
-       cpu_clk = __clk_lookup(clk_hw_get_name(cpu_clk_hw));
-
-       parent_clk = __clk_lookup(clk_hw_get_name(parent_clk_hw));
-
-       ret = clk_set_parent(cpu_clk, parent_clk);
+       ret = clk_hw_set_parent(nb_data->cpu_clk, parent_clk);
        if (ret)
                return notifier_from_errno(ret);
 
@@ -3695,7 +3690,7 @@ static void __init meson8b_clkc_init_common(struct device_node *np,
                        return;
        }
 
-       meson8b_cpu_nb_data.onecell_data = clk_hw_onecell_data;
+       meson8b_cpu_nb_data.cpu_clk = clk_hw_onecell_data->hws[CLKID_CPUCLK];
 
        /*
         * FIXME we shouldn't program the muxes in notifier handlers. The