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timer: mtk: skip setting parent with dummy fixed-clock

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Skip setting parent with dummy fixed-clock. Upstream linux might declare
an additional clock for the mtk timer and that additional clock might
also be a fixed-clock defined in DT. Setting parent of a dummy fixed-clock
resulta in error hence mtk timer fails to probe.

Skip setting parent to permit correct probe of the mtk timer.

Fixes: d3c3606c5c ("timer: MediaTek: add timer driver for MediaTek SoCs")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi 2024-07-06 18:13:02 +02:00 • committed by Tom Rini
parent 0c7c9494d6
commit 0f02269b76
1 changed files with 2 additions and 1 deletions
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3
drivers/timer/mtk_timer.c
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@ -73,7 +73,8 @@ static int mtk_timer_probe(struct udevice *dev)
return ret;
ret = clk_get_by_index(dev, 1, &parent);
if (!ret) {
/* Skip setting the parent with dummy fixed-clock */
if (!ret && parent.dev->driver != DM_DRIVER_GET(fixed_clock)) {
ret = clk_set_parent(&clk, &parent);
if (ret)
return ret;