diff options
| -rw-r--r-- | drivers/clk/clk-fixed-factor.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c index cb531b146b..40b63d6d50 100644 --- a/drivers/clk/clk-fixed-factor.c +++ b/drivers/clk/clk-fixed-factor.c @@ -92,3 +92,39 @@ struct clk *clk_fixed_factor(const char *name, return &f->clk; } + +#if defined(CONFIG_OFTREE) && defined(CONFIG_COMMON_CLK_OF_PROVIDER) +/** + * of_fixed_factor_clk_setup() - Setup function for simple fixed factor clock + */ +static int of_fixed_factor_clk_setup(struct device_node *node) +{ + struct clk *clk; + const char *clk_name = node->name; + const char *parent_name; + u32 div, mult; + + if (of_property_read_u32(node, "clock-div", &div)) { + pr_err("%s Fixed factor clock <%s> must have a clock-div property\n", + __func__, node->name); + return -EINVAL; + } + + if (of_property_read_u32(node, "clock-mult", &mult)) { + pr_err("%s Fixed factor clock <%s> must have a clock-mult property\n", + __func__, node->name); + return -EINVAL; + } + + of_property_read_string(node, "clock-output-names", &clk_name); + parent_name = of_clk_get_parent_name(node, 0); + + clk = clk_fixed_factor(clk_name, parent_name, mult, div, 0); + if (IS_ERR(clk)) + return IS_ERR(clk); + + return of_clk_add_provider(node, of_clk_src_simple_get, clk); +} +CLK_OF_DECLARE(fixed_factor_clk, "fixed-factor-clock", + of_fixed_factor_clk_setup); +#endif |