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sandbox: clk: add clk enable/disable test code

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Since we added clk enable_count and prograte clk child enabling
operation to clk parent, so add a new function sandbox_clk_enable_count
to get enable_count for test usage.

And add test code to get the enable_count after we enable/disable
the device clk.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2019-08-21 13:35:19 +00:00 • committed by Lukasz Majewski
parent aeeb2e6d9c
commit c66f4f5e30
3 changed files with 46 additions and 0 deletions
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15
drivers/clk/clk_sandbox_ccf.c
View file

@ -25,6 +25,18 @@ struct clk_pllv3 {
u32 div_shift; u32 div_shift;
}; };
int sandbox_clk_enable_count(struct clk *clk)
{
struct clk *clkp = NULL;
int ret;
ret = clk_get_by_id(clk->id, &clkp);
if (ret)
return 0;
return clkp->enable_count;
}
static ulong clk_pllv3_get_rate(struct clk *clk) static ulong clk_pllv3_get_rate(struct clk *clk)
{ {
unsigned long parent_rate = clk_get_parent_rate(clk); unsigned long parent_rate = clk_get_parent_rate(clk);
@ -254,6 +266,9 @@ static int sandbox_clk_ccf_probe(struct udevice *dev)
sandbox_clk_composite("i2c", i2c_sels, ARRAY_SIZE(i2c_sels), sandbox_clk_composite("i2c", i2c_sels, ARRAY_SIZE(i2c_sels),
&reg, 0)); &reg, 0));
clk_dm(SANDBOX_CLK_I2C_ROOT,
sandbox_clk_gate2("i2c_root", "i2c", base + 0x7c, 0));
return 0; return 0;
} }

3
include/sandbox-clk.h
View file

@ -20,6 +20,7 @@ enum {
SANDBOX_CLK_USDHC1_SEL, SANDBOX_CLK_USDHC1_SEL,
SANDBOX_CLK_USDHC2_SEL, SANDBOX_CLK_USDHC2_SEL,
SANDBOX_CLK_I2C, SANDBOX_CLK_I2C,
SANDBOX_CLK_I2C_ROOT,
}; };
enum sandbox_pllv3_type { enum sandbox_pllv3_type {
@ -74,4 +75,6 @@ static inline struct clk *sandbox_clk_mux(const char *name, void __iomem *reg,
width, 0); width, 0);
} }
int sandbox_clk_enable_count(struct clk *clk);
#endif /* __SANDBOX_CLK_H__ */ #endif /* __SANDBOX_CLK_H__ */

28
test/dm/clk_ccf.c
View file

@ -64,6 +64,34 @@ static int dm_test_clk_ccf(struct unit_test_state *uts)
rate = clk_get_rate(clk); rate = clk_get_rate(clk);
ut_asserteq(rate, 60000000); ut_asserteq(rate, 60000000);
#if CONFIG_IS_ENABLED(CLK_CCF)
/* Test clk tree enable/disable */
ret = clk_get_by_id(SANDBOX_CLK_I2C_ROOT, &clk);
ut_assertok(ret);
ut_asserteq_str("i2c_root", clk->dev->name);
ret = clk_enable(clk);
ut_assertok(ret);
ret = sandbox_clk_enable_count(clk);
ut_asserteq(ret, 1);
ret = clk_get_by_id(SANDBOX_CLK_I2C, &pclk);
ut_assertok(ret);
ret = sandbox_clk_enable_count(pclk);
ut_asserteq(ret, 1);
ret = clk_disable(clk);
ut_assertok(ret);
ret = sandbox_clk_enable_count(clk);
ut_asserteq(ret, 0);
ret = sandbox_clk_enable_count(pclk);
ut_asserteq(ret, 0);
#endif
return 1; return 1;
} }