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serial: ns16550: Handle -ENOENT when requesting clock

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When calling clk_get_by_index(), fall back to the legacy method of
getting the clock if -ENOENT is returned.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Alexandre Courbot 2016-09-30 17:37:00 +09:00 committed by Tom Rini
parent 53fec16206
commit ab895d6af2
1 changed files with 1 additions and 1 deletions
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2
drivers/serial/ns16550.c
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@ -408,7 +408,7 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
err = clk_get_rate(&clk);
if (!IS_ERR_VALUE(err))
plat->clock = err;
} else if (err != -ENODEV && err != -ENOSYS) {
} else if (err != -ENOENT && err != -ENODEV && err != -ENOSYS) {
debug("ns16550 failed to get clock\n");
return err;
}