# Re: \[PATCH v4 0/5\] simplefb: add clock handling code

- From: Tomi Valkeinen \<hidden\>
- Date: 2014-10-31 08:15:31 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2014/10/8099204
- Thread: https://ratatoskr.run/linux-arm-kernel/2014/10/8099204/t.md

```text
Hi Hans,

On 22/10/14 19:45, Hans de Goede wrote:

> -We will add a clocks property to the simplefb devicetree bindings, so
>  that u-boot setup framebuffers passed to the kernel (for early console
>  support) can properly list the clocks used, and simplefb can claim them to
>  avoid them getting turned off, thereby breaking the early console

Perhaps this has been discussed earlier, but I started to wonder if
managing clocks is enough.

What about regulators (to power the LCD), gpios (to keep the LCD
enabled) and pinctrl (for video signals)? I guess any those could be
reset by the kernel if no driver uses them.

 Tomi


```

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