# Re: \[PATCH v4 23/31\] serial: mpc512x: setup the PSC FIFO clock as well

- From: Greg Kroah-Hartman \<gregkh@linuxfoundation.org\>
- Date: 2013-08-12 18:27:52 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2013/08/8656454
- Thread: https://ratatoskr.run/linux-arm-kernel/2013/07/8074764/t/2.md

```text
On Tue, Aug 06, 2013 at 10:44:03PM +0200, Gerhard Sittig wrote:
> prepare and enable the FIFO clock upon PSC FIFO initialization,
> check for and propagage errors when enabling the PSC FIFO clock,
> disable and unprepare the FIFO clock upon PSC FIFO uninitialization,
> remove the pre-enable workaround from the platform's clock driver
> 
> devm_{get,put}_clk() doesn't apply here, as the SoC provides a
> single FIFO component which is shared among several PSC components,
> thus the FIFO isn't associated with a device (while the PSCs are)
> 
> Signed-off-by: Gerhard Sittig <redacted>

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
```