diff options
Diffstat (limited to 'test/dm/clk_ccf.c')
| -rw-r--r-- | test/dm/clk_ccf.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/test/dm/clk_ccf.c b/test/dm/clk_ccf.c index 32bc4d2b8a..e4ebb93cda 100644 --- a/test/dm/clk_ccf.c +++ b/test/dm/clk_ccf.c @@ -22,6 +22,10 @@ static int dm_test_clk_ccf(struct unit_test_state *uts) struct udevice *dev; long long rate; int ret; +#if CONFIG_IS_ENABLED(CLK_CCF) + const char *clkname; + int clkid, i; +#endif /* Get the device using the clk device */ ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-ccf", &dev)); @@ -130,6 +134,59 @@ static int dm_test_clk_ccf(struct unit_test_state *uts) ret = sandbox_clk_enable_count(pclk); ut_asserteq(ret, 0); + + /* Test clock re-parenting. */ + ret = clk_get_by_id(SANDBOX_CLK_USDHC1_SEL, &clk); + ut_assertok(ret); + ut_asserteq_str("usdhc1_sel", clk->dev->name); + + pclk = clk_get_parent(clk); + ut_assertok_ptr(pclk); + if (!strcmp(pclk->dev->name, "pll3_60m")) { + clkname = "pll3_80m"; + clkid = SANDBOX_CLK_PLL3_80M; + } else { + clkname = "pll3_60m"; + clkid = SANDBOX_CLK_PLL3_60M; + } + + ret = clk_get_by_id(clkid, &pclk); + ut_assertok(ret); + ret = clk_set_parent(clk, pclk); + ut_assertok(ret); + pclk = clk_get_parent(clk); + ut_assertok_ptr(pclk); + ut_asserteq_str(clkname, pclk->dev->name); + + /* Test disabling critical clock. */ + ret = clk_get_by_id(SANDBOX_CLK_I2C_ROOT, &clk); + ut_assertok(ret); + ut_asserteq_str("i2c_root", clk->dev->name); + + /* Disable it, if any. */ + ret = sandbox_clk_enable_count(clk); + for (i = 0; i < ret; i++) { + ret = clk_disable(clk); + ut_assertok(ret); + } + + ret = sandbox_clk_enable_count(clk); + ut_asserteq(ret, 0); + + clk->flags = CLK_IS_CRITICAL; + ret = clk_enable(clk); + ut_assertok(ret); + + ret = clk_disable(clk); + ut_assertok(ret); + ret = sandbox_clk_enable_count(clk); + ut_asserteq(ret, 1); + clk->flags &= ~CLK_IS_CRITICAL; + + ret = clk_disable(clk); + ut_assertok(ret); + ret = sandbox_clk_enable_count(clk); + ut_asserteq(ret, 0); #endif return 1; |