diff options
author | Tero Kristo <t-kristo@ti.com> | 2021-06-11 11:45:07 +0300 |
---|---|---|
committer | Lokesh Vutla <lokeshvutla@ti.com> | 2021-06-11 16:34:52 +0530 |
commit | 1a725e229096385b4fb8d59247584435779d0161 (patch) | |
tree | a3232bc38d95ba547115f1213a41727848cd5c22 | |
parent | fc960cb6fb94c77d1245e7f39b49d7278f480d62 (diff) | |
download | u-boot-1a725e229096385b4fb8d59247584435779d0161.zip u-boot-1a725e229096385b4fb8d59247584435779d0161.tar.gz u-boot-1a725e229096385b4fb8d59247584435779d0161.tar.bz2 |
clk: fix clock tree dump to properly dump out every registered clock
Some clocks are not associated to a DM node, so just parsing the DM is not
enough. This is especially true for root clocks, which typically don't have
any parents. Instead, fetch every registered UCLASS_CLK instance, and dump
these out.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tero Kristo <kristo@kernel.org>
-rw-r--r-- | cmd/clk.c | 27 |
1 files changed, 19 insertions, 8 deletions
@@ -18,11 +18,14 @@ static void show_clks(struct udevice *dev, int depth, int last_flag) { int i, is_last; struct udevice *child; - struct clk *clkp; + 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); @@ -47,6 +50,9 @@ static void show_clks(struct udevice *dev, int depth, int last_flag) } 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); } @@ -54,14 +60,19 @@ static void show_clks(struct udevice *dev, int depth, int last_flag) int __weak soc_clk_dump(void) { - struct udevice *root; + struct udevice *dev; + struct uclass *uc; + int ret; - root = dm_root(); - if (root) { - printf(" Rate Usecnt Name\n"); - printf("------------------------------------------\n"); - show_clks(root, -1, 0); - } + 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; } |