diff options
Diffstat (limited to 'drivers/clk/clk.c')
| -rw-r--r-- | drivers/clk/clk.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 39cfc6c6a8d2..65508eb89ec9 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1330,7 +1330,7 @@ static int clk_core_determine_round_nolock(struct clk_core *core, return 0; /* - * At this point, core protection will be disabled if + * At this point, core protection will be disabled * - if the provider is not protected at all * - if the calling consumer is the only one which has exclusivity * over the provider @@ -2078,12 +2078,8 @@ static void clk_change_rate(struct clk_core *core) return; if (core->flags & CLK_SET_RATE_UNGATE) { - unsigned long flags; - clk_core_prepare(core); - flags = clk_enable_lock(); - clk_core_enable(core); - clk_enable_unlock(flags); + clk_core_enable_lock(core); } if (core->new_parent && core->new_parent != core->parent) { @@ -2116,11 +2112,7 @@ static void clk_change_rate(struct clk_core *core) core->rate = clk_recalc(core, best_parent_rate); if (core->flags & CLK_SET_RATE_UNGATE) { - unsigned long flags; - - flags = clk_enable_lock(); - clk_core_disable(core); - clk_enable_unlock(flags); + clk_core_disable_lock(core); clk_core_unprepare(core); } @@ -3564,8 +3556,6 @@ static int __clk_core_init(struct clk_core *core) * reparenting clocks */ if (core->flags & CLK_IS_CRITICAL) { - unsigned long flags; - ret = clk_core_prepare(core); if (ret) { pr_warn("%s: critical clk '%s' failed to prepare\n", @@ -3573,9 +3563,7 @@ static int __clk_core_init(struct clk_core *core) goto out; } - flags = clk_enable_lock(); - ret = clk_core_enable(core); - clk_enable_unlock(flags); + ret = clk_core_enable_lock(core); if (ret) { pr_warn("%s: critical clk '%s' failed to enable\n", __func__, core->name); @@ -4552,6 +4540,9 @@ int of_clk_add_provider(struct device_node *np, struct of_clk_provider *cp; int ret; + if (!np) + return 0; + cp = kzalloc(sizeof(*cp), GFP_KERNEL); if (!cp) return -ENOMEM; @@ -4591,6 +4582,9 @@ int of_clk_add_hw_provider(struct device_node *np, struct of_clk_provider *cp; int ret; + if (!np) + return 0; + cp = kzalloc(sizeof(*cp), GFP_KERNEL); if (!cp) return -ENOMEM; @@ -4610,6 +4604,8 @@ int of_clk_add_hw_provider(struct device_node *np, if (ret < 0) of_clk_del_provider(np); + fwnode_dev_initialized(&np->fwnode, true); + return ret; } EXPORT_SYMBOL_GPL(of_clk_add_hw_provider); @@ -4686,6 +4682,9 @@ void of_clk_del_provider(struct device_node *np) { struct of_clk_provider *cp; + if (!np) + return; + mutex_lock(&of_clk_mutex); list_for_each_entry(cp, &of_clk_providers, link) { if (cp->node == np) { |