mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-27 15:12:21 +00:00
336d4615f8
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
746 lines
15 KiB
C
746 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2015 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
* Copyright (c) 2016, NVIDIA CORPORATION.
|
|
* Copyright (c) 2018, Theobroma Systems Design und Consulting GmbH
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <clk.h>
|
|
#include <clk-uclass.h>
|
|
#include <dm.h>
|
|
#include <dt-structs.h>
|
|
#include <errno.h>
|
|
#include <malloc.h>
|
|
#include <dm/devres.h>
|
|
#include <dm/read.h>
|
|
#include <linux/clk-provider.h>
|
|
#include <linux/err.h>
|
|
|
|
static inline const struct clk_ops *clk_dev_ops(struct udevice *dev)
|
|
{
|
|
return (const struct clk_ops *)dev->driver->ops;
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(OF_CONTROL)
|
|
# if CONFIG_IS_ENABLED(OF_PLATDATA)
|
|
int clk_get_by_index_platdata(struct udevice *dev, int index,
|
|
struct phandle_1_arg *cells, struct clk *clk)
|
|
{
|
|
int ret;
|
|
|
|
if (index != 0)
|
|
return -ENOSYS;
|
|
ret = uclass_get_device(UCLASS_CLK, 0, &clk->dev);
|
|
if (ret)
|
|
return ret;
|
|
clk->id = cells[0].arg[0];
|
|
|
|
return 0;
|
|
}
|
|
# else
|
|
static int clk_of_xlate_default(struct clk *clk,
|
|
struct ofnode_phandle_args *args)
|
|
{
|
|
debug("%s(clk=%p)\n", __func__, clk);
|
|
|
|
if (args->args_count > 1) {
|
|
debug("Invaild args_count: %d\n", args->args_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (args->args_count)
|
|
clk->id = args->args[0];
|
|
else
|
|
clk->id = 0;
|
|
|
|
clk->data = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clk_get_by_index_tail(int ret, ofnode node,
|
|
struct ofnode_phandle_args *args,
|
|
const char *list_name, int index,
|
|
struct clk *clk)
|
|
{
|
|
struct udevice *dev_clk;
|
|
const struct clk_ops *ops;
|
|
|
|
assert(clk);
|
|
clk->dev = NULL;
|
|
if (ret)
|
|
goto err;
|
|
|
|
ret = uclass_get_device_by_ofnode(UCLASS_CLK, args->node, &dev_clk);
|
|
if (ret) {
|
|
debug("%s: uclass_get_device_by_of_offset failed: err=%d\n",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
clk->dev = dev_clk;
|
|
|
|
ops = clk_dev_ops(dev_clk);
|
|
|
|
if (ops->of_xlate)
|
|
ret = ops->of_xlate(clk, args);
|
|
else
|
|
ret = clk_of_xlate_default(clk, args);
|
|
if (ret) {
|
|
debug("of_xlate() failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return clk_request(dev_clk, clk);
|
|
err:
|
|
debug("%s: Node '%s', property '%s', failed to request CLK index %d: %d\n",
|
|
__func__, ofnode_get_name(node), list_name, index, ret);
|
|
return ret;
|
|
}
|
|
|
|
static int clk_get_by_indexed_prop(struct udevice *dev, const char *prop_name,
|
|
int index, struct clk *clk)
|
|
{
|
|
int ret;
|
|
struct ofnode_phandle_args args;
|
|
|
|
debug("%s(dev=%p, index=%d, clk=%p)\n", __func__, dev, index, clk);
|
|
|
|
assert(clk);
|
|
clk->dev = NULL;
|
|
|
|
ret = dev_read_phandle_with_args(dev, prop_name, "#clock-cells", 0,
|
|
index, &args);
|
|
if (ret) {
|
|
debug("%s: fdtdec_parse_phandle_with_args failed: err=%d\n",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
return clk_get_by_index_tail(ret, dev_ofnode(dev), &args, "clocks",
|
|
index > 0, clk);
|
|
}
|
|
|
|
int clk_get_by_index(struct udevice *dev, int index, struct clk *clk)
|
|
{
|
|
struct ofnode_phandle_args args;
|
|
int ret;
|
|
|
|
ret = dev_read_phandle_with_args(dev, "clocks", "#clock-cells", 0,
|
|
index, &args);
|
|
|
|
return clk_get_by_index_tail(ret, dev_ofnode(dev), &args, "clocks",
|
|
index > 0, clk);
|
|
}
|
|
|
|
int clk_get_by_index_nodev(ofnode node, int index, struct clk *clk)
|
|
{
|
|
struct ofnode_phandle_args args;
|
|
int ret;
|
|
|
|
ret = ofnode_parse_phandle_with_args(node, "clocks", "#clock-cells", 0,
|
|
index > 0, &args);
|
|
|
|
return clk_get_by_index_tail(ret, node, &args, "clocks",
|
|
index > 0, clk);
|
|
}
|
|
|
|
int clk_get_bulk(struct udevice *dev, struct clk_bulk *bulk)
|
|
{
|
|
int i, ret, err, count;
|
|
|
|
bulk->count = 0;
|
|
|
|
count = dev_count_phandle_with_args(dev, "clocks", "#clock-cells");
|
|
if (count < 1)
|
|
return count;
|
|
|
|
bulk->clks = devm_kcalloc(dev, count, sizeof(struct clk), GFP_KERNEL);
|
|
if (!bulk->clks)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
ret = clk_get_by_index(dev, i, &bulk->clks[i]);
|
|
if (ret < 0)
|
|
goto bulk_get_err;
|
|
|
|
++bulk->count;
|
|
}
|
|
|
|
return 0;
|
|
|
|
bulk_get_err:
|
|
err = clk_release_all(bulk->clks, bulk->count);
|
|
if (err)
|
|
debug("%s: could release all clocks for %p\n",
|
|
__func__, dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int clk_set_default_parents(struct udevice *dev, int stage)
|
|
{
|
|
struct clk clk, parent_clk;
|
|
int index;
|
|
int num_parents;
|
|
int ret;
|
|
|
|
num_parents = dev_count_phandle_with_args(dev, "assigned-clock-parents",
|
|
"#clock-cells");
|
|
if (num_parents < 0) {
|
|
debug("%s: could not read assigned-clock-parents for %p\n",
|
|
__func__, dev);
|
|
return 0;
|
|
}
|
|
|
|
for (index = 0; index < num_parents; index++) {
|
|
ret = clk_get_by_indexed_prop(dev, "assigned-clock-parents",
|
|
index, &parent_clk);
|
|
/* If -ENOENT, this is a no-op entry */
|
|
if (ret == -ENOENT)
|
|
continue;
|
|
|
|
if (ret) {
|
|
debug("%s: could not get parent clock %d for %s\n",
|
|
__func__, index, dev_read_name(dev));
|
|
return ret;
|
|
}
|
|
|
|
ret = clk_get_by_indexed_prop(dev, "assigned-clocks",
|
|
index, &clk);
|
|
if (ret) {
|
|
debug("%s: could not get assigned clock %d for %s\n",
|
|
__func__, index, dev_read_name(dev));
|
|
return ret;
|
|
}
|
|
|
|
/* This is clk provider device trying to reparent itself
|
|
* It cannot be done right now but need to wait after the
|
|
* device is probed
|
|
*/
|
|
if (stage == 0 && clk.dev == dev)
|
|
continue;
|
|
|
|
if (stage > 0 && clk.dev != dev)
|
|
/* do not setup twice the parent clocks */
|
|
continue;
|
|
|
|
ret = clk_set_parent(&clk, &parent_clk);
|
|
/*
|
|
* Not all drivers may support clock-reparenting (as of now).
|
|
* Ignore errors due to this.
|
|
*/
|
|
if (ret == -ENOSYS)
|
|
continue;
|
|
|
|
if (ret < 0) {
|
|
debug("%s: failed to reparent clock %d for %s\n",
|
|
__func__, index, dev_read_name(dev));
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int clk_set_default_rates(struct udevice *dev, int stage)
|
|
{
|
|
struct clk clk;
|
|
int index;
|
|
int num_rates;
|
|
int size;
|
|
int ret = 0;
|
|
u32 *rates = NULL;
|
|
|
|
size = dev_read_size(dev, "assigned-clock-rates");
|
|
if (size < 0)
|
|
return 0;
|
|
|
|
num_rates = size / sizeof(u32);
|
|
rates = calloc(num_rates, sizeof(u32));
|
|
if (!rates)
|
|
return -ENOMEM;
|
|
|
|
ret = dev_read_u32_array(dev, "assigned-clock-rates", rates, num_rates);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
for (index = 0; index < num_rates; index++) {
|
|
/* If 0 is passed, this is a no-op */
|
|
if (!rates[index])
|
|
continue;
|
|
|
|
ret = clk_get_by_indexed_prop(dev, "assigned-clocks",
|
|
index, &clk);
|
|
if (ret) {
|
|
debug("%s: could not get assigned clock %d for %s\n",
|
|
__func__, index, dev_read_name(dev));
|
|
continue;
|
|
}
|
|
|
|
/* This is clk provider device trying to program itself
|
|
* It cannot be done right now but need to wait after the
|
|
* device is probed
|
|
*/
|
|
if (stage == 0 && clk.dev == dev)
|
|
continue;
|
|
|
|
if (stage > 0 && clk.dev != dev)
|
|
/* do not setup twice the parent clocks */
|
|
continue;
|
|
|
|
ret = clk_set_rate(&clk, rates[index]);
|
|
|
|
if (ret < 0) {
|
|
debug("%s: failed to set rate on clock index %d (%ld) for %s\n",
|
|
__func__, index, clk.id, dev_read_name(dev));
|
|
break;
|
|
}
|
|
}
|
|
|
|
fail:
|
|
free(rates);
|
|
return ret;
|
|
}
|
|
|
|
int clk_set_defaults(struct udevice *dev, int stage)
|
|
{
|
|
int ret;
|
|
|
|
if (!dev_of_valid(dev))
|
|
return 0;
|
|
|
|
/* If this not in SPL and pre-reloc state, don't take any action. */
|
|
if (!(IS_ENABLED(CONFIG_SPL_BUILD) || (gd->flags & GD_FLG_RELOC)))
|
|
return 0;
|
|
|
|
debug("%s(%s)\n", __func__, dev_read_name(dev));
|
|
|
|
ret = clk_set_default_parents(dev, stage);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = clk_set_default_rates(dev, stage);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int clk_get_by_name(struct udevice *dev, const char *name, struct clk *clk)
|
|
{
|
|
int index;
|
|
|
|
debug("%s(dev=%p, name=%s, clk=%p)\n", __func__, dev, name, clk);
|
|
clk->dev = NULL;
|
|
|
|
index = dev_read_stringlist_search(dev, "clock-names", name);
|
|
if (index < 0) {
|
|
debug("fdt_stringlist_search() failed: %d\n", index);
|
|
return index;
|
|
}
|
|
|
|
return clk_get_by_index(dev, index, clk);
|
|
}
|
|
# endif /* OF_PLATDATA */
|
|
|
|
int clk_get_by_name_nodev(ofnode node, const char *name, struct clk *clk)
|
|
{
|
|
int index;
|
|
|
|
debug("%s(node=%p, name=%s, clk=%p)\n", __func__,
|
|
ofnode_get_name(node), name, clk);
|
|
clk->dev = NULL;
|
|
|
|
index = ofnode_stringlist_search(node, "clock-names", name);
|
|
if (index < 0) {
|
|
debug("fdt_stringlist_search() failed: %d\n", index);
|
|
return index;
|
|
}
|
|
|
|
return clk_get_by_index_nodev(node, index, clk);
|
|
}
|
|
|
|
int clk_get_optional_nodev(ofnode node, const char *name, struct clk *clk)
|
|
{
|
|
int ret;
|
|
|
|
ret = clk_get_by_name_nodev(node, name, clk);
|
|
if (ret == -ENODATA)
|
|
return 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int clk_release_all(struct clk *clk, int count)
|
|
{
|
|
int i, ret;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
debug("%s(clk[%d]=%p)\n", __func__, i, &clk[i]);
|
|
|
|
/* check if clock has been previously requested */
|
|
if (!clk[i].dev)
|
|
continue;
|
|
|
|
ret = clk_disable(&clk[i]);
|
|
if (ret && ret != -ENOSYS)
|
|
return ret;
|
|
|
|
ret = clk_free(&clk[i]);
|
|
if (ret && ret != -ENOSYS)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* OF_CONTROL */
|
|
|
|
int clk_request(struct udevice *dev, struct clk *clk)
|
|
{
|
|
const struct clk_ops *ops;
|
|
|
|
debug("%s(dev=%p, clk=%p)\n", __func__, dev, clk);
|
|
if (!clk)
|
|
return 0;
|
|
ops = clk_dev_ops(dev);
|
|
|
|
clk->dev = dev;
|
|
|
|
if (!ops->request)
|
|
return 0;
|
|
|
|
return ops->request(clk);
|
|
}
|
|
|
|
int clk_free(struct clk *clk)
|
|
{
|
|
const struct clk_ops *ops;
|
|
|
|
debug("%s(clk=%p)\n", __func__, clk);
|
|
if (!clk_valid(clk))
|
|
return 0;
|
|
ops = clk_dev_ops(clk->dev);
|
|
|
|
if (!ops->rfree)
|
|
return 0;
|
|
|
|
return ops->rfree(clk);
|
|
}
|
|
|
|
ulong clk_get_rate(struct clk *clk)
|
|
{
|
|
const struct clk_ops *ops;
|
|
|
|
debug("%s(clk=%p)\n", __func__, clk);
|
|
if (!clk_valid(clk))
|
|
return 0;
|
|
ops = clk_dev_ops(clk->dev);
|
|
|
|
if (!ops->get_rate)
|
|
return -ENOSYS;
|
|
|
|
return ops->get_rate(clk);
|
|
}
|
|
|
|
struct clk *clk_get_parent(struct clk *clk)
|
|
{
|
|
struct udevice *pdev;
|
|
struct clk *pclk;
|
|
|
|
debug("%s(clk=%p)\n", __func__, clk);
|
|
if (!clk_valid(clk))
|
|
return NULL;
|
|
|
|
pdev = dev_get_parent(clk->dev);
|
|
pclk = dev_get_clk_ptr(pdev);
|
|
if (!pclk)
|
|
return ERR_PTR(-ENODEV);
|
|
|
|
return pclk;
|
|
}
|
|
|
|
long long clk_get_parent_rate(struct clk *clk)
|
|
{
|
|
const struct clk_ops *ops;
|
|
struct clk *pclk;
|
|
|
|
debug("%s(clk=%p)\n", __func__, clk);
|
|
if (!clk_valid(clk))
|
|
return 0;
|
|
|
|
pclk = clk_get_parent(clk);
|
|
if (IS_ERR(pclk))
|
|
return -ENODEV;
|
|
|
|
ops = clk_dev_ops(pclk->dev);
|
|
if (!ops->get_rate)
|
|
return -ENOSYS;
|
|
|
|
/* Read the 'rate' if not already set or if proper flag set*/
|
|
if (!pclk->rate || pclk->flags & CLK_GET_RATE_NOCACHE)
|
|
pclk->rate = clk_get_rate(pclk);
|
|
|
|
return pclk->rate;
|
|
}
|
|
|
|
ulong clk_set_rate(struct clk *clk, ulong rate)
|
|
{
|
|
const struct clk_ops *ops;
|
|
|
|
debug("%s(clk=%p, rate=%lu)\n", __func__, clk, rate);
|
|
if (!clk_valid(clk))
|
|
return 0;
|
|
ops = clk_dev_ops(clk->dev);
|
|
|
|
if (!ops->set_rate)
|
|
return -ENOSYS;
|
|
|
|
return ops->set_rate(clk, rate);
|
|
}
|
|
|
|
int clk_set_parent(struct clk *clk, struct clk *parent)
|
|
{
|
|
const struct clk_ops *ops;
|
|
|
|
debug("%s(clk=%p, parent=%p)\n", __func__, clk, parent);
|
|
if (!clk_valid(clk))
|
|
return 0;
|
|
ops = clk_dev_ops(clk->dev);
|
|
|
|
if (!ops->set_parent)
|
|
return -ENOSYS;
|
|
|
|
return ops->set_parent(clk, parent);
|
|
}
|
|
|
|
int clk_enable(struct clk *clk)
|
|
{
|
|
const struct clk_ops *ops;
|
|
struct clk *clkp = NULL;
|
|
int ret;
|
|
|
|
debug("%s(clk=%p)\n", __func__, clk);
|
|
if (!clk_valid(clk))
|
|
return 0;
|
|
ops = clk_dev_ops(clk->dev);
|
|
|
|
if (CONFIG_IS_ENABLED(CLK_CCF)) {
|
|
/* Take id 0 as a non-valid clk, such as dummy */
|
|
if (clk->id && !clk_get_by_id(clk->id, &clkp)) {
|
|
if (clkp->enable_count) {
|
|
clkp->enable_count++;
|
|
return 0;
|
|
}
|
|
if (clkp->dev->parent &&
|
|
device_get_uclass_id(clkp->dev) == UCLASS_CLK) {
|
|
ret = clk_enable(dev_get_clk_ptr(clkp->dev->parent));
|
|
if (ret) {
|
|
printf("Enable %s failed\n",
|
|
clkp->dev->parent->name);
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ops->enable) {
|
|
ret = ops->enable(clk);
|
|
if (ret) {
|
|
printf("Enable %s failed\n", clk->dev->name);
|
|
return ret;
|
|
}
|
|
}
|
|
if (clkp)
|
|
clkp->enable_count++;
|
|
} else {
|
|
if (!ops->enable)
|
|
return -ENOSYS;
|
|
return ops->enable(clk);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int clk_enable_bulk(struct clk_bulk *bulk)
|
|
{
|
|
int i, ret;
|
|
|
|
for (i = 0; i < bulk->count; i++) {
|
|
ret = clk_enable(&bulk->clks[i]);
|
|
if (ret < 0 && ret != -ENOSYS)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int clk_disable(struct clk *clk)
|
|
{
|
|
const struct clk_ops *ops;
|
|
struct clk *clkp = NULL;
|
|
int ret;
|
|
|
|
debug("%s(clk=%p)\n", __func__, clk);
|
|
if (!clk_valid(clk))
|
|
return 0;
|
|
ops = clk_dev_ops(clk->dev);
|
|
|
|
if (CONFIG_IS_ENABLED(CLK_CCF)) {
|
|
if (clk->id && !clk_get_by_id(clk->id, &clkp)) {
|
|
if (clkp->enable_count == 0) {
|
|
printf("clk %s already disabled\n",
|
|
clkp->dev->name);
|
|
return 0;
|
|
}
|
|
|
|
if (--clkp->enable_count > 0)
|
|
return 0;
|
|
}
|
|
|
|
if (ops->disable) {
|
|
ret = ops->disable(clk);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
if (clkp && clkp->dev->parent &&
|
|
device_get_uclass_id(clkp->dev) == UCLASS_CLK) {
|
|
ret = clk_disable(dev_get_clk_ptr(clkp->dev->parent));
|
|
if (ret) {
|
|
printf("Disable %s failed\n",
|
|
clkp->dev->parent->name);
|
|
return ret;
|
|
}
|
|
}
|
|
} else {
|
|
if (!ops->disable)
|
|
return -ENOSYS;
|
|
|
|
return ops->disable(clk);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int clk_disable_bulk(struct clk_bulk *bulk)
|
|
{
|
|
int i, ret;
|
|
|
|
for (i = 0; i < bulk->count; i++) {
|
|
ret = clk_disable(&bulk->clks[i]);
|
|
if (ret < 0 && ret != -ENOSYS)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int clk_get_by_id(ulong id, struct clk **clkp)
|
|
{
|
|
struct udevice *dev;
|
|
struct uclass *uc;
|
|
int ret;
|
|
|
|
ret = uclass_get(UCLASS_CLK, &uc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
uclass_foreach_dev(dev, uc) {
|
|
struct clk *clk = dev_get_clk_ptr(dev);
|
|
|
|
if (clk && clk->id == id) {
|
|
*clkp = clk;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -ENOENT;
|
|
}
|
|
|
|
bool clk_is_match(const struct clk *p, const struct clk *q)
|
|
{
|
|
/* trivial case: identical struct clk's or both NULL */
|
|
if (p == q)
|
|
return true;
|
|
|
|
/* trivial case #2: on the clk pointer is NULL */
|
|
if (!p || !q)
|
|
return false;
|
|
|
|
/* same device, id and data */
|
|
if (p->dev == q->dev && p->id == q->id && p->data == q->data)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static void devm_clk_release(struct udevice *dev, void *res)
|
|
{
|
|
clk_free(res);
|
|
}
|
|
|
|
static int devm_clk_match(struct udevice *dev, void *res, void *data)
|
|
{
|
|
return res == data;
|
|
}
|
|
|
|
struct clk *devm_clk_get(struct udevice *dev, const char *id)
|
|
{
|
|
int rc;
|
|
struct clk *clk;
|
|
|
|
clk = devres_alloc(devm_clk_release, sizeof(struct clk), __GFP_ZERO);
|
|
if (unlikely(!clk))
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
rc = clk_get_by_name(dev, id, clk);
|
|
if (rc)
|
|
return ERR_PTR(rc);
|
|
|
|
devres_add(dev, clk);
|
|
return clk;
|
|
}
|
|
|
|
struct clk *devm_clk_get_optional(struct udevice *dev, const char *id)
|
|
{
|
|
struct clk *clk = devm_clk_get(dev, id);
|
|
|
|
if (PTR_ERR(clk) == -ENODATA)
|
|
return NULL;
|
|
|
|
return clk;
|
|
}
|
|
|
|
void devm_clk_put(struct udevice *dev, struct clk *clk)
|
|
{
|
|
int rc;
|
|
|
|
if (!clk)
|
|
return;
|
|
|
|
rc = devres_release(dev, devm_clk_release, devm_clk_match, clk);
|
|
WARN_ON(rc);
|
|
}
|
|
|
|
int clk_uclass_post_probe(struct udevice *dev)
|
|
{
|
|
/*
|
|
* when a clock provider is probed. Call clk_set_defaults()
|
|
* also after the device is probed. This takes care of cases
|
|
* where the DT is used to setup default parents and rates
|
|
* using assigned-clocks
|
|
*/
|
|
clk_set_defaults(dev, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
UCLASS_DRIVER(clk) = {
|
|
.id = UCLASS_CLK,
|
|
.name = "clk",
|
|
.post_probe = clk_uclass_post_probe,
|
|
};
|