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clk: at91: clk-system: add set/get_rate operations

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To support set/get the clock rate, add set/get_rate operations.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
This commit is contained in:
Wenyou Yang
2018-02-09 11:34:52 +08:00
committed by Tom Rini
parent fed0509c92
commit 162a7de5e5
1 changed files with 26 additions and 0 deletions
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26
drivers/clk/at91/clk-system.c
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@@ -44,6 +44,30 @@ static inline int is_pck(int id)
return (id >= 8) && (id <= 15);
}
static ulong system_clk_get_rate(struct clk *clk)
{
struct clk clk_dev;
int ret;
ret = clk_get_by_index(clk->dev, 0, &clk_dev);
if (ret)
return -EINVAL;
return clk_get_rate(&clk_dev);
}
static ulong system_clk_set_rate(struct clk *clk, ulong rate)
{
struct clk clk_dev;
int ret;
ret = clk_get_by_index(clk->dev, 0, &clk_dev);
if (ret)
return -EINVAL;
return clk_set_rate(&clk_dev, rate);
}
static int system_clk_enable(struct clk *clk)
{
struct pmc_platdata *plat = dev_get_platdata(clk->dev);
@@ -73,6 +97,8 @@ static int system_clk_enable(struct clk *clk)
static struct clk_ops system_clk_ops = {
.of_xlate = at91_clk_of_xlate,
.get_rate = system_clk_get_rate,
.set_rate = system_clk_set_rate,
.enable = system_clk_enable,
};