clk.c

/*
 * Copyright (C) 2015 Google, Inc
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <dm.h>
#include <asm/clk.h>
#include <dm/test.h>
#include <linux/err.h>
#include <test/ut.h>

static int dm_test_clk(struct unit_test_state *uts)
{
	struct udevice *dev_fixed, *dev_clk, *dev_test;
	ulong rate;

	ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-fixed",
					      &dev_fixed));

	ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-sbox",
					      &dev_clk));
	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
	ut_asserteq(0, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_SPI));
	ut_asserteq(0, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_I2C));

	ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "clk-test",
					      &dev_test));
	ut_assertok(sandbox_clk_test_get(dev_test));

	ut_asserteq(1234,
		    sandbox_clk_test_get_rate(dev_test,
					      SANDBOX_CLK_TEST_ID_FIXED));
	ut_asserteq(0, sandbox_clk_test_get_rate(dev_test,
						 SANDBOX_CLK_TEST_ID_SPI));
	ut_asserteq(0, sandbox_clk_test_get_rate(dev_test,
						 SANDBOX_CLK_TEST_ID_I2C));

	rate = sandbox_clk_test_set_rate(dev_test, SANDBOX_CLK_TEST_ID_FIXED,
					 12345);
	ut_assert(IS_ERR_VALUE(rate));
	rate = sandbox_clk_test_get_rate(dev_test, SANDBOX_CLK_TEST_ID_FIXED);
	ut_asserteq(1234, rate);

	ut_asserteq(0, sandbox_clk_test_set_rate(dev_test,
						 SANDBOX_CLK_TEST_ID_SPI,
						 1000));
	ut_asserteq(0, sandbox_clk_test_set_rate(dev_test,
						 SANDBOX_CLK_TEST_ID_I2C,
						 2000));

	ut_asserteq(1000, sandbox_clk_test_get_rate(dev_test,
						    SANDBOX_CLK_TEST_ID_SPI));
	ut_asserteq(2000, sandbox_clk_test_get_rate(dev_test,
						    SANDBOX_CLK_TEST_ID_I2C));

	ut_asserteq(1000, sandbox_clk_test_set_rate(dev_test,
						    SANDBOX_CLK_TEST_ID_SPI,
						    10000));
	ut_asserteq(2000, sandbox_clk_test_set_rate(dev_test,
						    SANDBOX_CLK_TEST_ID_I2C,
						    20000));

	rate = sandbox_clk_test_set_rate(dev_test, SANDBOX_CLK_TEST_ID_SPI, 0);
	ut_assert(IS_ERR_VALUE(rate));
	rate = sandbox_clk_test_set_rate(dev_test, SANDBOX_CLK_TEST_ID_I2C, 0);
	ut_assert(IS_ERR_VALUE(rate));

	ut_asserteq(10000, sandbox_clk_test_get_rate(dev_test,
						     SANDBOX_CLK_TEST_ID_SPI));
	ut_asserteq(20000, sandbox_clk_test_get_rate(dev_test,
						     SANDBOX_CLK_TEST_ID_I2C));

	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
	ut_asserteq(10000, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_SPI));
	ut_asserteq(20000, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_I2C));

	ut_assertok(sandbox_clk_test_enable(dev_test, SANDBOX_CLK_TEST_ID_SPI));
	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));

	ut_assertok(sandbox_clk_test_enable(dev_test, SANDBOX_CLK_TEST_ID_I2C));
	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));

	ut_assertok(sandbox_clk_test_disable(dev_test,
					     SANDBOX_CLK_TEST_ID_SPI));
	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));

	ut_assertok(sandbox_clk_test_disable(dev_test,
					     SANDBOX_CLK_TEST_ID_I2C));
	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));

	ut_assertok(sandbox_clk_test_free(dev_test));

	return 0;
}
DM_TEST(dm_test_clk, DM_TESTF_SCAN_FDT);