+Lucasz
On 10/11/20 2:35 pm, Tero Kristo wrote:
> 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-kri...@ti.com>
> ---
> cmd/clk.c | 27 +++++++++++++++++++--------
> 1 file changed, 19 insertions(+), 8 deletions(-)
>
> diff --git a/cmd/clk.c b/cmd/clk.c
> index e3c3d2f9bb..0245b97136 100644
> --- a/cmd/clk.c
> +++ b/cmd/clk.c
> @@ -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;
> }
>
