diff options
Diffstat (limited to 'drivers/clk/ti/mux.c')
| -rw-r--r-- | drivers/clk/ti/mux.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/clk/ti/mux.c b/drivers/clk/ti/mux.c index 69a4308a5a98..883bdde94d04 100644 --- a/drivers/clk/ti/mux.c +++ b/drivers/clk/ti/mux.c @@ -91,10 +91,39 @@ static int ti_clk_mux_set_parent(struct clk_hw *hw, u8 index) return 0; } +/** + * clk_mux_save_context - Save the parent selcted in the mux + * @hw: pointer struct clk_hw + * + * Save the parent mux value. + */ +static int clk_mux_save_context(struct clk_hw *hw) +{ + struct clk_omap_mux *mux = to_clk_omap_mux(hw); + + mux->saved_parent = ti_clk_mux_get_parent(hw); + return 0; +} + +/** + * clk_mux_restore_context - Restore the parent in the mux + * @hw: pointer struct clk_hw + * + * Restore the saved parent mux value. + */ +static void clk_mux_restore_context(struct clk_hw *hw) +{ + struct clk_omap_mux *mux = to_clk_omap_mux(hw); + + ti_clk_mux_set_parent(hw, mux->saved_parent); +} + const struct clk_ops ti_clk_mux_ops = { .get_parent = ti_clk_mux_get_parent, .set_parent = ti_clk_mux_set_parent, .determine_rate = __clk_mux_determine_rate, + .save_context = clk_mux_save_context, + .restore_context = clk_mux_restore_context, }; static struct clk *_register_mux(struct device *dev, const char *name, @@ -186,7 +215,7 @@ static void of_mux_clk_setup(struct device_node *node) num_parents = of_clk_get_parent_count(node); if (num_parents < 2) { - pr_err("mux-clock %s must have parents\n", node->name); + pr_err("mux-clock %pOFn must have parents\n", node); return; } parent_names = kzalloc((sizeof(char *) * num_parents), GFP_KERNEL); @@ -278,7 +307,7 @@ static void __init of_ti_composite_mux_clk_setup(struct device_node *node) num_parents = of_clk_get_parent_count(node); if (num_parents < 2) { - pr_err("%s must have parents\n", node->name); + pr_err("%pOFn must have parents\n", node); goto cleanup; } |