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https://github.com/AsahiLinux/u-boot
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1fe243a1e4
Add clk_valid() to check for optional clocks are valid. Call clk_valid() in test/dm/clk.c and add relevant test routine to sandbox clk tests. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
142 lines
2.9 KiB
C
142 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2016, NVIDIA CORPORATION.
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*/
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#include <common.h>
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#include <dm.h>
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#include <clk.h>
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#include <asm/clk.h>
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struct sandbox_clk_test {
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struct clk clks[SANDBOX_CLK_TEST_ID_COUNT];
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struct clk_bulk bulk;
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};
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static const char * const sandbox_clk_test_names[] = {
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[SANDBOX_CLK_TEST_ID_FIXED] = "fixed",
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[SANDBOX_CLK_TEST_ID_SPI] = "spi",
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[SANDBOX_CLK_TEST_ID_I2C] = "i2c",
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};
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int sandbox_clk_test_get(struct udevice *dev)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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int i, ret;
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for (i = 0; i < SANDBOX_CLK_TEST_ID_COUNT; i++) {
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ret = clk_get_by_name(dev, sandbox_clk_test_names[i],
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&sbct->clks[i]);
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if (ret)
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return ret;
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}
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return 0;
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}
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int sandbox_clk_test_get_bulk(struct udevice *dev)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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return clk_get_bulk(dev, &sbct->bulk);
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}
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ulong sandbox_clk_test_get_rate(struct udevice *dev, int id)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
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return -EINVAL;
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return clk_get_rate(&sbct->clks[id]);
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}
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ulong sandbox_clk_test_set_rate(struct udevice *dev, int id, ulong rate)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
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return -EINVAL;
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return clk_set_rate(&sbct->clks[id], rate);
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}
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int sandbox_clk_test_enable(struct udevice *dev, int id)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
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return -EINVAL;
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return clk_enable(&sbct->clks[id]);
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}
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int sandbox_clk_test_enable_bulk(struct udevice *dev)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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return clk_enable_bulk(&sbct->bulk);
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}
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int sandbox_clk_test_disable(struct udevice *dev, int id)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
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return -EINVAL;
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return clk_disable(&sbct->clks[id]);
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}
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int sandbox_clk_test_disable_bulk(struct udevice *dev)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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return clk_disable_bulk(&sbct->bulk);
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}
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int sandbox_clk_test_free(struct udevice *dev)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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int i, ret;
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for (i = 0; i < SANDBOX_CLK_TEST_ID_COUNT; i++) {
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ret = clk_free(&sbct->clks[i]);
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if (ret)
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return ret;
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}
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return 0;
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}
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int sandbox_clk_test_release_bulk(struct udevice *dev)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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return clk_release_bulk(&sbct->bulk);
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}
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int sandbox_clk_test_valid(struct udevice *dev)
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{
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struct sandbox_clk_test *sbct = dev_get_priv(dev);
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int i;
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for (i = 0; i < SANDBOX_CLK_TEST_ID_COUNT; i++) {
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if (!clk_valid(&sbct->clks[i]))
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return -EINVAL;
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}
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return 0;
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}
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static const struct udevice_id sandbox_clk_test_ids[] = {
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{ .compatible = "sandbox,clk-test" },
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{ }
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};
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U_BOOT_DRIVER(sandbox_clk_test) = {
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.name = "sandbox_clk_test",
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.id = UCLASS_MISC,
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.of_match = sandbox_clk_test_ids,
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.priv_auto_alloc_size = sizeof(struct sandbox_clk_test),
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};
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