From 6a1c7cef14a41ade84bccdded1fd87b908b6958c Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 6 Jul 2015 12:54:24 -0600 Subject: dm: test: Add tests for the clk uclass Add tests of each API call using a sandbox clock device. Signed-off-by: Simon Glass --- drivers/clk/Makefile | 1 + drivers/clk/clk_sandbox.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 86 insertions(+) create mode 100644 drivers/clk/clk_sandbox.c (limited to 'drivers') diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index b51cf23..bb89fb9 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -6,3 +6,4 @@ # obj-$(CONFIG_CLK) += clk-uclass.o +obj-$(CONFIG_SANDBOX) += clk_sandbox.o diff --git a/drivers/clk/clk_sandbox.c b/drivers/clk/clk_sandbox.c new file mode 100644 index 0000000..058225a --- /dev/null +++ b/drivers/clk/clk_sandbox.c @@ -0,0 +1,85 @@ +/* + * (C) Copyright 2015 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include +#include +#include +#include +#include + +struct sandbox_clk_priv { + ulong rate; + ulong periph_rate[PERIPH_ID_COUNT]; +}; + +static ulong sandbox_clk_get_rate(struct udevice *dev) +{ + struct sandbox_clk_priv *priv = dev_get_priv(dev); + + return priv->rate; +} + +static ulong sandbox_clk_set_rate(struct udevice *dev, ulong rate) +{ + struct sandbox_clk_priv *priv = dev_get_priv(dev); + + if (!rate) + return -EINVAL; + priv->rate = rate; + return 0; +} + +ulong sandbox_get_periph_rate(struct udevice *dev, int periph) +{ + struct sandbox_clk_priv *priv = dev_get_priv(dev); + + if (periph < PERIPH_ID_FIRST || periph >= PERIPH_ID_COUNT) + return -EINVAL; + return priv->periph_rate[periph]; +} + +ulong sandbox_set_periph_rate(struct udevice *dev, int periph, ulong rate) +{ + struct sandbox_clk_priv *priv = dev_get_priv(dev); + ulong old_rate; + + if (periph < PERIPH_ID_FIRST || periph >= PERIPH_ID_COUNT) + return -EINVAL; + old_rate = priv->periph_rate[periph]; + priv->periph_rate[periph] = rate; + + return old_rate; +} + +static int sandbox_clk_probe(struct udevice *dev) +{ + struct sandbox_clk_priv *priv = dev_get_priv(dev); + + priv->rate = SANDBOX_CLK_RATE; + + return 0; +} + +static struct clk_ops sandbox_clk_ops = { + .get_rate = sandbox_clk_get_rate, + .set_rate = sandbox_clk_set_rate, + .get_periph_rate = sandbox_get_periph_rate, + .set_periph_rate = sandbox_set_periph_rate, +}; + +static const struct udevice_id sandbox_clk_ids[] = { + { .compatible = "sandbox,clk" }, + { } +}; + +U_BOOT_DRIVER(clk_sandbox) = { + .name = "clk_sandbox", + .id = UCLASS_CLK, + .of_match = sandbox_clk_ids, + .ops = &sandbox_clk_ops, + .priv_auto_alloc_size = sizeof(struct sandbox_clk_priv), + .probe = sandbox_clk_probe, +}; -- cgit v1.1