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authorBin Meng <bmeng.cn@gmail.com>2019-07-05 09:23:15 -0700
committerSimon Glass <sjg@chromium.org>2019-07-24 12:54:08 -0700
commit7efb4a6e09421a8ceaaaff61e28905ddec0c02a5 (patch)
tree1b3fe5c4ae3f1a606f255cbc3c3c675c73c4121b /drivers/timer
parente3665ba9d7c82f75c4dbd2057276a6990929be40 (diff)
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> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/timer')
-rw-r--r--drivers/timer/timer-uclass.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/timer/timer-uclass.c b/drivers/timer/timer-uclass.c
index 12ee6eb8043..97a4c748518 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);