[U-Boot] [PATCH 2/2] imx: mx6ul/sx: Fix issue in LCDIF clock dividers calculation

Stefano Babic sbabic at denx.de
Tue Jan 26 15:12:10 CET 2016


On 26/01/2016 15:01, Ye Li wrote:
> The checking with max frequency supported is not correct, because the temp
> is calculated by max pre and post dividers. We can decrease any divider to
> meet the max frequency limitation. Actually, the calculation below the codes
> is doing this way to find best pre and post dividers.
> 
> Signed-off-by: Ye Li <ye.li at nxp.com>
> ---
>  arch/arm/cpu/armv7/mx6/clock.c |    4 ----
>  1 files changed, 0 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
> index 007204d..88380a6 100644
> --- a/arch/arm/cpu/armv7/mx6/clock.c
> +++ b/arch/arm/cpu/armv7/mx6/clock.c
> @@ -638,10 +638,6 @@ void mxs_set_lcdclk(u32 base_addr, u32 freq)
>  	}
>  
>  	temp = freq * max_pred * max_postd;
> -	if (temp > max) {
> -		puts("Please decrease freq, too large!\n");
> -		return;
> -	}
>  	if (temp < min) {
>  		/*
>  		 * Register: PLL_VIDEO
> 
Reviewed-by: Stefano Babic <sbabic at denx.de>

Best regards,
Stefano Babic

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