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dm: test: Add tests for the clk uclass

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Add tests of each API call using a sandbox clock device.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-07-06 12:54:24 -06:00
parent c02790ce12
commit 6a1c7cef14
7 changed files with 162 additions and 0 deletions
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59
test/dm/clk.c Normal file
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/*
* Copyright (C) 2015 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <asm/test.h>
#include <dm/test.h>
#include <linux/err.h>
#include <test/ut.h>
/* Test that we can find and adjust clocks */
static int dm_test_clk_base(struct unit_test_state *uts)
{
struct udevice *clk;
ulong rate;
ut_assertok(uclass_get_device(UCLASS_CLK, 0, &clk));
rate = clk_get_rate(clk);
ut_asserteq(SANDBOX_CLK_RATE, rate);
ut_asserteq(-EINVAL, clk_set_rate(clk, 0));
ut_assertok(clk_set_rate(clk, rate * 2));
ut_asserteq(SANDBOX_CLK_RATE * 2, clk_get_rate(clk));
return 0;
}
DM_TEST(dm_test_clk_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test that peripheral clocks work as expected */
static int dm_test_clk_periph(struct unit_test_state *uts)
{
struct udevice *clk;
ulong rate;
ut_assertok(uclass_get_device(UCLASS_CLK, 0, &clk));
rate = clk_set_periph_rate(clk, PERIPH_ID_COUNT, 123);
ut_asserteq(-EINVAL, rate);
ut_asserteq(1, IS_ERR_VALUE(rate));
rate = clk_set_periph_rate(clk, PERIPH_ID_SPI, 123);
ut_asserteq(0, rate);
ut_asserteq(123, clk_get_periph_rate(clk, PERIPH_ID_SPI));
rate = clk_set_periph_rate(clk, PERIPH_ID_SPI, 1234);
ut_asserteq(123, rate);
rate = clk_set_periph_rate(clk, PERIPH_ID_I2C, 567);
rate = clk_set_periph_rate(clk, PERIPH_ID_SPI, 1234);
ut_asserteq(1234, rate);
ut_asserteq(567, clk_get_periph_rate(clk, PERIPH_ID_I2C));
return 0;
}
DM_TEST(dm_test_clk_periph, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);