# Re: \[PATCH 8/8\] at91/avr32/atmel\_lcdfb: prepare clk before calling enable

- From: Nicolas Ferre \<hidden\>
- Date: 2013-06-20 07:49:32 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2013/06/4070012
- Thread: https://ratatoskr.run/linux-arm-kernel/2013/06/4069303/t.md

```text
On 19/06/2013 13:22, Boris BREZILLON :
> Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
> avoid common clk framework warnings.
>
> Signed-off-by: Boris BREZILLON <redacted>

Acked-by: Nicolas Ferre <redacted>

> ---
>   drivers/video/atmel_lcdfb.c |    8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
> index 540909d..8525457 100644
> --- a/drivers/video/atmel_lcdfb.c
> +++ b/drivers/video/atmel_lcdfb.c
> @@ -893,14 +893,14 @@ static int __init atmel_lcdfb_init_fbinfo(struct atmel_lcdfb_info *sinfo)
>
>   static void atmel_lcdfb_start_clock(struct atmel_lcdfb_info *sinfo)
>   {
> -	clk_enable(sinfo->bus_clk);
> -	clk_enable(sinfo->lcdc_clk);
> +	clk_prepare_enable(sinfo->bus_clk);
> +	clk_prepare_enable(sinfo->lcdc_clk);
>   }
>
>   static void atmel_lcdfb_stop_clock(struct atmel_lcdfb_info *sinfo)
>   {
> -	clk_disable(sinfo->bus_clk);
> -	clk_disable(sinfo->lcdc_clk);
> +	clk_disable_unprepare(sinfo->bus_clk);
> +	clk_disable_unprepare(sinfo->lcdc_clk);
>   }
>
>
>


-- 
Nicolas Ferre
```