143 lines
2.9 KiB
C
143 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2016, NVIDIA CORPORATION.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <clk.h>
|
|
#include <asm/clk.h>
|
|
|
|
struct sandbox_clk_test {
|
|
struct clk clks[SANDBOX_CLK_TEST_ID_COUNT];
|
|
struct clk_bulk bulk;
|
|
};
|
|
|
|
static const char * const sandbox_clk_test_names[] = {
|
|
[SANDBOX_CLK_TEST_ID_FIXED] = "fixed",
|
|
[SANDBOX_CLK_TEST_ID_SPI] = "spi",
|
|
[SANDBOX_CLK_TEST_ID_I2C] = "i2c",
|
|
};
|
|
|
|
int sandbox_clk_test_get(struct udevice *dev)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
int i, ret;
|
|
|
|
for (i = 0; i < SANDBOX_CLK_TEST_ID_COUNT; i++) {
|
|
ret = clk_get_by_name(dev, sandbox_clk_test_names[i],
|
|
&sbct->clks[i]);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sandbox_clk_test_get_bulk(struct udevice *dev)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
|
|
return clk_get_bulk(dev, &sbct->bulk);
|
|
}
|
|
|
|
ulong sandbox_clk_test_get_rate(struct udevice *dev, int id)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
|
|
if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
|
|
return -EINVAL;
|
|
|
|
return clk_get_rate(&sbct->clks[id]);
|
|
}
|
|
|
|
ulong sandbox_clk_test_set_rate(struct udevice *dev, int id, ulong rate)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
|
|
if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
|
|
return -EINVAL;
|
|
|
|
return clk_set_rate(&sbct->clks[id], rate);
|
|
}
|
|
|
|
int sandbox_clk_test_enable(struct udevice *dev, int id)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
|
|
if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
|
|
return -EINVAL;
|
|
|
|
return clk_enable(&sbct->clks[id]);
|
|
}
|
|
|
|
int sandbox_clk_test_enable_bulk(struct udevice *dev)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
|
|
return clk_enable_bulk(&sbct->bulk);
|
|
}
|
|
|
|
int sandbox_clk_test_disable(struct udevice *dev, int id)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
|
|
if (id < 0 || id >= SANDBOX_CLK_TEST_ID_COUNT)
|
|
return -EINVAL;
|
|
|
|
return clk_disable(&sbct->clks[id]);
|
|
}
|
|
|
|
int sandbox_clk_test_disable_bulk(struct udevice *dev)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
|
|
return clk_disable_bulk(&sbct->bulk);
|
|
}
|
|
|
|
int sandbox_clk_test_free(struct udevice *dev)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
int i, ret;
|
|
|
|
for (i = 0; i < SANDBOX_CLK_TEST_ID_COUNT; i++) {
|
|
ret = clk_free(&sbct->clks[i]);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sandbox_clk_test_release_bulk(struct udevice *dev)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
|
|
return clk_release_bulk(&sbct->bulk);
|
|
}
|
|
|
|
int sandbox_clk_test_valid(struct udevice *dev)
|
|
{
|
|
struct sandbox_clk_test *sbct = dev_get_priv(dev);
|
|
int i;
|
|
|
|
for (i = 0; i < SANDBOX_CLK_TEST_ID_COUNT; i++) {
|
|
if (!clk_valid(&sbct->clks[i]))
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id sandbox_clk_test_ids[] = {
|
|
{ .compatible = "sandbox,clk-test" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(sandbox_clk_test) = {
|
|
.name = "sandbox_clk_test",
|
|
.id = UCLASS_MISC,
|
|
.of_match = sandbox_clk_test_ids,
|
|
.priv_auto_alloc_size = sizeof(struct sandbox_clk_test),
|
|
};
|