diff options
| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2020-09-07 17:46:35 +0300 |
|---|---|---|
| committer | Eugen Hristev <eugen.hristev@microchip.com> | 2020-09-22 11:27:18 +0300 |
| commit | 9a5d59dfc6475c4770bf702e4f30e338499310fd (patch) | |
| tree | 7b29f10ea3731a74bdbfd8f8c183c33d0742106b /test | |
| parent | 4d139f3838b4ee48d7df9ca9c37ccd1a57202a52 (diff) | |
clk: do not disable clock if it is critical
Do not disable clock if it is a critical one.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'test')
| -rw-r--r-- | test/dm/clk_ccf.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/test/dm/clk_ccf.c b/test/dm/clk_ccf.c index 1ce28d747d..e4ebb93cda 100644 --- a/test/dm/clk_ccf.c +++ b/test/dm/clk_ccf.c @@ -24,7 +24,7 @@ static int dm_test_clk_ccf(struct unit_test_state *uts) int ret; #if CONFIG_IS_ENABLED(CLK_CCF) const char *clkname; - int clkid; + int clkid, i; #endif /* Get the device using the clk device */ @@ -157,6 +157,36 @@ static int dm_test_clk_ccf(struct unit_test_state *uts) 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; |