diff options
Diffstat (limited to 'arch/arm/mach-mxs/clock-mx28.c')
| -rw-r--r-- | arch/arm/mach-mxs/clock-mx28.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c index 1ad97fed1e9..5dcc59d5b9e 100644 --- a/arch/arm/mach-mxs/clock-mx28.c +++ b/arch/arm/mach-mxs/clock-mx28.c @@ -295,11 +295,11 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ unsigned long diff, parent_rate, calc_rate; \ int i; \ \ - parent_rate = clk_get_rate(clk->parent); \ div_max = BM_CLKCTRL_##dr##_DIV >> BP_CLKCTRL_##dr##_DIV; \ bm_busy = BM_CLKCTRL_##dr##_BUSY; \ \ if (clk->parent == &ref_xtal_clk) { \ + parent_rate = clk_get_rate(clk->parent); \ div = DIV_ROUND_UP(parent_rate, rate); \ if (clk == &cpu_clk) { \ div_max = BM_CLKCTRL_CPU_DIV_XTAL >> \ @@ -309,6 +309,11 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ if (div == 0 || div > div_max) \ return -EINVAL; \ } else { \ + /* \ + * hack alert: this block modifies clk->parent, too, \ + * so the base to use it the grand parent. \ + */ \ + parent_rate = clk_get_rate(clk->parent->parent); \ rate >>= PARENT_RATE_SHIFT; \ parent_rate >>= PARENT_RATE_SHIFT; \ diff = parent_rate; \ |