mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 11:00:15 +00:00
92a1bba857
Fix the long help message for "clk setfreq" command
Fixes: 7ab418fbe6
("clk: add support for setting clk rate from cmdline")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20220131172131.4.Ic863c28ffdcc15b3f4616434c2efd88b4e45495c@changeid
166 lines
3.3 KiB
C
166 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2013 Xilinx, Inc.
|
|
*/
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <clk.h>
|
|
#if defined(CONFIG_DM) && defined(CONFIG_CLK)
|
|
#include <dm.h>
|
|
#include <dm/device.h>
|
|
#include <dm/root.h>
|
|
#include <dm/device-internal.h>
|
|
#include <linux/clk-provider.h>
|
|
#endif
|
|
|
|
#if defined(CONFIG_DM) && defined(CONFIG_CLK)
|
|
static void show_clks(struct udevice *dev, int depth, int last_flag)
|
|
{
|
|
int i, is_last;
|
|
struct udevice *child;
|
|
struct clk *clkp, *parent;
|
|
u32 rate;
|
|
|
|
clkp = dev_get_clk_ptr(dev);
|
|
if (device_get_uclass_id(dev) == UCLASS_CLK && clkp) {
|
|
parent = clk_get_parent(clkp);
|
|
if (!IS_ERR(parent) && depth == -1)
|
|
return;
|
|
depth++;
|
|
rate = clk_get_rate(clkp);
|
|
|
|
printf(" %-12u %8d ", rate, clkp->enable_count);
|
|
|
|
for (i = depth; i >= 0; i--) {
|
|
is_last = (last_flag >> i) & 1;
|
|
if (i) {
|
|
if (is_last)
|
|
printf(" ");
|
|
else
|
|
printf("| ");
|
|
} else {
|
|
if (is_last)
|
|
printf("`-- ");
|
|
else
|
|
printf("|-- ");
|
|
}
|
|
}
|
|
|
|
printf("%s\n", dev->name);
|
|
}
|
|
|
|
list_for_each_entry(child, &dev->child_head, sibling_node) {
|
|
if (child == dev)
|
|
continue;
|
|
|
|
is_last = list_is_last(&child->sibling_node, &dev->child_head);
|
|
show_clks(child, depth, (last_flag << 1) | is_last);
|
|
}
|
|
}
|
|
|
|
int __weak soc_clk_dump(void)
|
|
{
|
|
struct udevice *dev;
|
|
struct uclass *uc;
|
|
int ret;
|
|
|
|
ret = uclass_get(UCLASS_CLK, &uc);
|
|
if (ret)
|
|
return ret;
|
|
|
|
printf(" Rate Usecnt Name\n");
|
|
printf("------------------------------------------\n");
|
|
|
|
uclass_foreach_dev(dev, uc)
|
|
show_clks(dev, -1, 0);
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
int __weak soc_clk_dump(void)
|
|
{
|
|
puts("Not implemented\n");
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
static int do_clk_dump(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
int ret;
|
|
|
|
ret = soc_clk_dump();
|
|
if (ret < 0) {
|
|
printf("Clock dump error %d\n", ret);
|
|
ret = CMD_RET_FAILURE;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(DM) && CONFIG_IS_ENABLED(CLK)
|
|
static int do_clk_setfreq(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
struct clk *clk = NULL;
|
|
s32 freq;
|
|
struct udevice *dev;
|
|
|
|
if (argc != 3)
|
|
return CMD_RET_USAGE;
|
|
|
|
freq = dectoul(argv[2], NULL);
|
|
|
|
if (!uclass_get_device_by_name(UCLASS_CLK, argv[1], &dev))
|
|
clk = dev_get_clk_ptr(dev);
|
|
|
|
if (!clk) {
|
|
printf("clock '%s' not found.\n", argv[1]);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
freq = clk_set_rate(clk, freq);
|
|
if (freq < 0) {
|
|
printf("set_rate failed: %d\n", freq);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
printf("set_rate returns %u\n", freq);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static struct cmd_tbl cmd_clk_sub[] = {
|
|
U_BOOT_CMD_MKENT(dump, 1, 1, do_clk_dump, "", ""),
|
|
#if CONFIG_IS_ENABLED(DM) && CONFIG_IS_ENABLED(CLK)
|
|
U_BOOT_CMD_MKENT(setfreq, 3, 1, do_clk_setfreq, "", ""),
|
|
#endif
|
|
};
|
|
|
|
static int do_clk(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
struct cmd_tbl *c;
|
|
|
|
if (argc < 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
/* Strip off leading 'clk' command argument */
|
|
argc--;
|
|
argv++;
|
|
|
|
c = find_cmd_tbl(argv[0], &cmd_clk_sub[0], ARRAY_SIZE(cmd_clk_sub));
|
|
|
|
if (c)
|
|
return c->cmd(cmdtp, flag, argc, argv);
|
|
else
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_LONGHELP
|
|
static char clk_help_text[] =
|
|
"dump - Print clock frequencies\n"
|
|
"clk setfreq [clk] [freq] - Set clock frequency";
|
|
#endif
|
|
|
|
U_BOOT_CMD(clk, 4, 1, do_clk, "CLK sub-system", clk_help_text);
|