[U-Boot] [PATCH 1/4] dm: timer: Skip device that does not have a valid ofnode in pre_probe()

It is possible that a timer device has a null ofnode, hence there is no need to further parse DT for the clock rate.

Signed-off-by: Bin Meng bmeng.cn@gmail.com ---

drivers/timer/timer-uclass.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/timer/timer-uclass.c b/drivers/timer/timer-uclass.c index 12ee6eb..97a4c74 100644 --- a/drivers/timer/timer-uclass.c +++ b/drivers/timer/timer-uclass.c @@ -48,6 +48,10 @@ static int timer_pre_probe(struct udevice *dev) int err; ulong ret;

+ /* It is possible that a timer device has a null ofnode */ + if (!dev_of_valid(dev)) + return 0; + err = clk_get_by_index(dev, 0, &timer_clk); if (!err) { ret = clk_get_rate(&timer_clk);