[PATCH 2/2] drm/radeon: lower the ref * post PLL maximum

[Alex Deucher]

On Sat, May 3, 2014 at 11:25 AM, Christian König
<deathsimple at vodafone.de> wrote:
> From: Christian König <christian.koenig at amd.com>
>
> Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=75241
>
> Signed-off-by: Christian König <christian.koenig at amd.com>

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/radeon/radeon_display.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
> index 9ff0e2f..408b6ac 100644
> --- a/drivers/gpu/drm/radeon/radeon_display.c
> +++ b/drivers/gpu/drm/radeon/radeon_display.c
> @@ -862,7 +862,7 @@ static void avivo_get_fb_ref_div(unsigned nom, unsigned den, unsigned post_div,
>                                  unsigned *fb_div, unsigned *ref_div)
>  {
>         /* limit reference * post divider to a maximum */
> -       ref_div_max = min(210 / post_div, ref_div_max);
> +       ref_div_max = min(128 / post_div, ref_div_max);
>
>         /* get matching reference and feedback divider */
>         *ref_div = min(max(DIV_ROUND_CLOSEST(den, post_div), 1u), ref_div_max);
> --
> 1.9.1
>
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