diff options
Diffstat (limited to 'arch/arm/mach-mxs/clock-mx28.c')
| -rw-r--r-- | arch/arm/mach-mxs/clock-mx28.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c index f71d01282dcd..54d82a4b4cf0 100644 --- a/arch/arm/mach-mxs/clock-mx28.c +++ b/arch/arm/mach-mxs/clock-mx28.c @@ -477,6 +477,10 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_##rs); \ reg &= ~BM_CLKCTRL_##rs##_DIV; \ reg |= div << BP_CLKCTRL_##rs##_DIV; \ + if (reg & (1 << clk->enable_shift)) { \ + pr_err("%s: clock is gated\n", __func__); \ + return -EINVAL; \ + } \ __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_##rs); \ \ for (i = 10000; i; i--) \ |
