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clk: fix assigned-clocks to pass with deferring provider

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If a clock provider is not ready for assigning default rates/parents
during its probe, it may return -EPROBE_DEFER directly from xlate.
Handle this special case properly by skipping the entry and adjusting the
return value to pass. The defaults will be handled properly in post probe
phase then.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tero Kristo <kristo@kernel.org>
This commit is contained in:
Tero Kristo
2021-06-11 11:45:11 +03:00
committed by Lokesh Vutla
parent c319572abd
commit 1e1fab0be5
1 changed files with 18 additions and 0 deletions
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18
drivers/clk/clk-uclass.c
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@@ -241,6 +241,15 @@ static int clk_set_default_parents(struct udevice *dev, int stage)
ret = clk_get_by_indexed_prop(dev, "assigned-clocks", ret = clk_get_by_indexed_prop(dev, "assigned-clocks",
index, &clk); index, &clk);
/*
* If the clock provider is not ready yet, let it handle
* the re-programming later.
*/
if (ret == -EPROBE_DEFER) {
ret = 0;
continue;
}
if (ret) { if (ret) {
debug("%s: could not get assigned clock %d for %s\n", debug("%s: could not get assigned clock %d for %s\n",
__func__, index, dev_read_name(dev)); __func__, index, dev_read_name(dev));
@@ -309,6 +318,15 @@ static int clk_set_default_rates(struct udevice *dev, int stage)
ret = clk_get_by_indexed_prop(dev, "assigned-clocks", ret = clk_get_by_indexed_prop(dev, "assigned-clocks",
index, &clk); index, &clk);
/*
* If the clock provider is not ready yet, let it handle
* the re-programming later.
*/
if (ret == -EPROBE_DEFER) {
ret = 0;
continue;
}
if (ret) { if (ret) {
dev_dbg(dev, dev_dbg(dev,
"could not get assigned clock %d (err = %d)\n", "could not get assigned clock %d (err = %d)\n",