diff options
Diffstat (limited to 'drivers/clk/clk-divider.c')
| -rw-r--r-- | drivers/clk/clk-divider.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c index 407aae78ea..d9d3407e75 100644 --- a/drivers/clk/clk-divider.c +++ b/drivers/clk/clk-divider.c @@ -203,8 +203,12 @@ static int clk_divider_bestdiv(struct clk *clk, unsigned long rate, static long clk_divider_round_rate(struct clk *clk, unsigned long rate, unsigned long *parent_rate) { + struct clk_divider *divider = container_of(clk, struct clk_divider, clk); int div; + if (divider->flags & CLK_DIVIDER_READ_ONLY) + return clk_divider_recalc_rate(clk, *parent_rate); + div = clk_divider_bestdiv(clk, rate, parent_rate); return *parent_rate / div; @@ -217,6 +221,9 @@ static int clk_divider_set_rate(struct clk *clk, unsigned long rate, unsigned int div, value; u32 val; + if (divider->flags & CLK_DIVIDER_READ_ONLY) + return 0; + if (clk->flags & CLK_SET_RATE_PARENT) { unsigned long best_parent_rate = parent_rate; div = clk_divider_bestdiv(clk, rate, &best_parent_rate); |