diff options
Diffstat (limited to 'drivers/clk/clk-bulk.c')
| -rw-r--r-- | drivers/clk/clk-bulk.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/clk/clk-bulk.c b/drivers/clk/clk-bulk.c index 4460ac52199f..6a7118d4250a 100644 --- a/drivers/clk/clk-bulk.c +++ b/drivers/clk/clk-bulk.c @@ -17,9 +17,11 @@ */ #include <linux/clk.h> +#include <linux/clk-provider.h> #include <linux/device.h> #include <linux/export.h> #include <linux/of.h> +#include <linux/slab.h> static int __must_check of_clk_bulk_get(struct device_node *np, int num_clks, struct clk_bulk_data *clks) @@ -49,6 +51,32 @@ err: return ret; } +static int __must_check of_clk_bulk_get_all(struct device_node *np, + struct clk_bulk_data **clks) +{ + struct clk_bulk_data *clk_bulk; + int num_clks; + int ret; + + num_clks = of_clk_get_parent_count(np); + if (!num_clks) + return 0; + + clk_bulk = kmalloc_array(num_clks, sizeof(*clk_bulk), GFP_KERNEL); + if (!clk_bulk) + return -ENOMEM; + + ret = of_clk_bulk_get(np, num_clks, clk_bulk); + if (ret) { + kfree(clk_bulk); + return ret; + } + + *clks = clk_bulk; + + return num_clks; +} + void clk_bulk_put(int num_clks, struct clk_bulk_data *clks) { while (--num_clks >= 0) { @@ -88,6 +116,29 @@ err: } EXPORT_SYMBOL(clk_bulk_get); +void clk_bulk_put_all(int num_clks, struct clk_bulk_data *clks) +{ + if (IS_ERR_OR_NULL(clks)) + return; + + clk_bulk_put(num_clks, clks); + + kfree(clks); +} +EXPORT_SYMBOL(clk_bulk_put_all); + +int __must_check clk_bulk_get_all(struct device *dev, + struct clk_bulk_data **clks) +{ + struct device_node *np = dev_of_node(dev); + + if (!np) + return 0; + + return of_clk_bulk_get_all(np, clks); +} +EXPORT_SYMBOL(clk_bulk_get_all); + #ifdef CONFIG_HAVE_CLK_PREPARE /** |