From 9a52be129c5b159269ac69a7ae0197eb02612f1d Mon Sep 17 00:00:00 2001 From: Jean-Jacques Hiblot Date: Tue, 22 Oct 2019 14:00:07 +0200 Subject: [PATCH] test: clk: test clock self assignment Make sure that the clock self-assignment works by having a clock of clk-sbox be configured automatically when clk-sbox is probed. Signed-off-by: Jean-Jacques Hiblot --- arch/sandbox/dts/test.dts | 2 ++ drivers/clk/clk_sandbox.c | 22 ++++++++++++++++++++++ test/dm/clk.c | 4 ++-- 3 files changed, 26 insertions(+), 2 deletions(-) diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index a5b9fbd..fdb08f2 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -226,6 +226,8 @@ clk_sandbox: clk-sbox { compatible = "sandbox,clk"; #clock-cells = <1>; + assigned-clocks = <&clk_sandbox 3>; + assigned-clock-rates = <321>; }; clk-test { diff --git a/drivers/clk/clk_sandbox.c b/drivers/clk/clk_sandbox.c index d152fd7..de6b2f7 100644 --- a/drivers/clk/clk_sandbox.c +++ b/drivers/clk/clk_sandbox.c @@ -10,6 +10,7 @@ #include struct sandbox_clk_priv { + bool probed; ulong rate[SANDBOX_CLK_ID_COUNT]; bool enabled[SANDBOX_CLK_ID_COUNT]; bool requested[SANDBOX_CLK_ID_COUNT]; @@ -19,6 +20,9 @@ static ulong sandbox_clk_get_rate(struct clk *clk) { struct sandbox_clk_priv *priv = dev_get_priv(clk->dev); + if (!priv->probed) + return -ENODEV; + if (clk->id >= SANDBOX_CLK_ID_COUNT) return -EINVAL; @@ -30,6 +34,9 @@ static ulong sandbox_clk_set_rate(struct clk *clk, ulong rate) struct sandbox_clk_priv *priv = dev_get_priv(clk->dev); ulong old_rate; + if (!priv->probed) + return -ENODEV; + if (clk->id >= SANDBOX_CLK_ID_COUNT) return -EINVAL; @@ -46,6 +53,9 @@ static int sandbox_clk_enable(struct clk *clk) { struct sandbox_clk_priv *priv = dev_get_priv(clk->dev); + if (!priv->probed) + return -ENODEV; + if (clk->id >= SANDBOX_CLK_ID_COUNT) return -EINVAL; @@ -58,6 +68,9 @@ static int sandbox_clk_disable(struct clk *clk) { struct sandbox_clk_priv *priv = dev_get_priv(clk->dev); + if (!priv->probed) + return -ENODEV; + if (clk->id >= SANDBOX_CLK_ID_COUNT) return -EINVAL; @@ -97,6 +110,14 @@ static struct clk_ops sandbox_clk_ops = { .free = sandbox_clk_free, }; +static int sandbox_clk_probe(struct udevice *dev) +{ + struct sandbox_clk_priv *priv = dev_get_priv(dev); + + priv->probed = true; + return 0; +} + static const struct udevice_id sandbox_clk_ids[] = { { .compatible = "sandbox,clk" }, { } @@ -107,6 +128,7 @@ U_BOOT_DRIVER(clk_sandbox) = { .id = UCLASS_CLK, .of_match = sandbox_clk_ids, .ops = &sandbox_clk_ops, + .probe = sandbox_clk_probe, .priv_auto_alloc_size = sizeof(struct sandbox_clk_priv), }; diff --git a/test/dm/clk.c b/test/dm/clk.c index 3ad0ad8..31335a5 100644 --- a/test/dm/clk.c +++ b/test/dm/clk.c @@ -74,8 +74,8 @@ static int dm_test_clk(struct unit_test_state *uts) SANDBOX_CLK_TEST_ID_SPI)); ut_asserteq(0, sandbox_clk_test_get_rate(dev_test, SANDBOX_CLK_TEST_ID_I2C)); - ut_asserteq(0, sandbox_clk_test_get_rate(dev_test, - SANDBOX_CLK_TEST_ID_DEVM1)); + ut_asserteq(321, sandbox_clk_test_get_rate(dev_test, + SANDBOX_CLK_TEST_ID_DEVM1)); ut_asserteq(0, sandbox_clk_test_get_rate(dev_test, SANDBOX_CLK_TEST_ID_DEVM2)); -- 2.7.4