diff options
Diffstat (limited to 'drivers/clk/ux500')
| -rw-r--r-- | drivers/clk/ux500/u8500_of_clk.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c index bfbe3cae72d7..b9b3317bdc2f 100644 --- a/drivers/clk/ux500/u8500_of_clk.c +++ b/drivers/clk/ux500/u8500_of_clk.c @@ -15,6 +15,28 @@ #include <linux/platform_data/clk-ux500.h> #include "clk.h" +#define PRCC_SHOW(clk, base, bit) \ + clk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] + +struct clk *ux500_twocell_get(struct of_phandle_args *clkspec, void *data) +{ + struct clk **clk_data = data; + unsigned int base, bit; + + if (clkspec->args_count != 2) + return ERR_PTR(-EINVAL); + + base = clkspec->args[0]; + bit = clkspec->args[1]; + + if (base != 1 && base != 2 && base != 3 && base != 5 && base != 6) { + pr_err("%s: invalid PRCC base %d\n", __func__, base); + return ERR_PTR(-EINVAL); + } + + return PRCC_SHOW(clk_data, base, bit); +} + static const struct of_device_id u8500_clk_of_match[] = { { .compatible = "stericsson,u8500-clks", }, { }, |