Add tests of each API call using a sandbox clock device. Signed-off-by: Simon Glass <sjg@chromium.org>master
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/*
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* (C) Copyright 2015 Google, Inc |
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* |
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* SPDX-License-Identifier: GPL-2.0 |
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*/ |
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#include <common.h> |
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#include <clk.h> |
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#include <dm.h> |
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#include <errno.h> |
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#include <asm/test.h> |
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struct sandbox_clk_priv { |
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ulong rate; |
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ulong periph_rate[PERIPH_ID_COUNT]; |
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}; |
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static ulong sandbox_clk_get_rate(struct udevice *dev) |
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{ |
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struct sandbox_clk_priv *priv = dev_get_priv(dev); |
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return priv->rate; |
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} |
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static ulong sandbox_clk_set_rate(struct udevice *dev, ulong rate) |
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{ |
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struct sandbox_clk_priv *priv = dev_get_priv(dev); |
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if (!rate) |
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return -EINVAL; |
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priv->rate = rate; |
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return 0; |
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} |
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ulong sandbox_get_periph_rate(struct udevice *dev, int periph) |
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{ |
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struct sandbox_clk_priv *priv = dev_get_priv(dev); |
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if (periph < PERIPH_ID_FIRST || periph >= PERIPH_ID_COUNT) |
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return -EINVAL; |
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return priv->periph_rate[periph]; |
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} |
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ulong sandbox_set_periph_rate(struct udevice *dev, int periph, ulong rate) |
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{ |
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struct sandbox_clk_priv *priv = dev_get_priv(dev); |
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ulong old_rate; |
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if (periph < PERIPH_ID_FIRST || periph >= PERIPH_ID_COUNT) |
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return -EINVAL; |
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old_rate = priv->periph_rate[periph]; |
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priv->periph_rate[periph] = rate; |
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return old_rate; |
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} |
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static int sandbox_clk_probe(struct udevice *dev) |
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{ |
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struct sandbox_clk_priv *priv = dev_get_priv(dev); |
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priv->rate = SANDBOX_CLK_RATE; |
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return 0; |
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} |
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static struct clk_ops sandbox_clk_ops = { |
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.get_rate = sandbox_clk_get_rate, |
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.set_rate = sandbox_clk_set_rate, |
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.get_periph_rate = sandbox_get_periph_rate, |
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.set_periph_rate = sandbox_set_periph_rate, |
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}; |
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static const struct udevice_id sandbox_clk_ids[] = { |
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{ .compatible = "sandbox,clk" }, |
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{ } |
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}; |
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U_BOOT_DRIVER(clk_sandbox) = { |
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.name = "clk_sandbox", |
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.id = UCLASS_CLK, |
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.of_match = sandbox_clk_ids, |
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.ops = &sandbox_clk_ops, |
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.priv_auto_alloc_size = sizeof(struct sandbox_clk_priv), |
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.probe = sandbox_clk_probe, |
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}; |
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/*
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* Copyright (C) 2015 Google, Inc |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include <common.h> |
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#include <clk.h> |
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#include <dm.h> |
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#include <asm/test.h> |
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#include <dm/test.h> |
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#include <linux/err.h> |
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#include <test/ut.h> |
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/* Test that we can find and adjust clocks */ |
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static int dm_test_clk_base(struct unit_test_state *uts) |
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{ |
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struct udevice *clk; |
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ulong rate; |
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ut_assertok(uclass_get_device(UCLASS_CLK, 0, &clk)); |
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rate = clk_get_rate(clk); |
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ut_asserteq(SANDBOX_CLK_RATE, rate); |
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ut_asserteq(-EINVAL, clk_set_rate(clk, 0)); |
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ut_assertok(clk_set_rate(clk, rate * 2)); |
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ut_asserteq(SANDBOX_CLK_RATE * 2, clk_get_rate(clk)); |
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return 0; |
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} |
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DM_TEST(dm_test_clk_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); |
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/* Test that peripheral clocks work as expected */ |
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static int dm_test_clk_periph(struct unit_test_state *uts) |
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{ |
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struct udevice *clk; |
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ulong rate; |
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ut_assertok(uclass_get_device(UCLASS_CLK, 0, &clk)); |
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rate = clk_set_periph_rate(clk, PERIPH_ID_COUNT, 123); |
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ut_asserteq(-EINVAL, rate); |
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ut_asserteq(1, IS_ERR_VALUE(rate)); |
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rate = clk_set_periph_rate(clk, PERIPH_ID_SPI, 123); |
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ut_asserteq(0, rate); |
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ut_asserteq(123, clk_get_periph_rate(clk, PERIPH_ID_SPI)); |
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rate = clk_set_periph_rate(clk, PERIPH_ID_SPI, 1234); |
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ut_asserteq(123, rate); |
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rate = clk_set_periph_rate(clk, PERIPH_ID_I2C, 567); |
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rate = clk_set_periph_rate(clk, PERIPH_ID_SPI, 1234); |
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ut_asserteq(1234, rate); |
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ut_asserteq(567, clk_get_periph_rate(clk, PERIPH_ID_I2C)); |
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return 0; |
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} |
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DM_TEST(dm_test_clk_periph, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); |
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