Attachment 97609 Details for Bug 77673 – Possible fix.

[patch] Possible fix.

0001-drm-radeon-use-fixed-PPL-ref-divider-if-needed.patch (text/plain), 1.15 KB, created by Christian König on 2014-04-19 16:58:27 UTC

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Creator: Christian König

Created: 2014-04-19 16:58:27 UTC

Size: 1.15 KB

patch

obsolete

>From 24315814239a3fdb306244c99bd076bc79db4ade Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
>Date: Sat, 19 Apr 2014 18:57:14 +0200
>Subject: [PATCH] drm/radeon: use fixed PPL ref divider if needed
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>Signed-off-by: Christian KÃ¶nig <christian.koenig@amd.com>
>---
> drivers/gpu/drm/radeon/radeon_display.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
>index 2f7cbb9..e6c3c54 100644
>--- a/drivers/gpu/drm/radeon/radeon_display.c
>+++ b/drivers/gpu/drm/radeon/radeon_display.c
>@@ -880,7 +880,12 @@ void radeon_compute_pll_avivo(struct radeon_pll *pll,
> 		ref_div_min = pll->reference_div;
> 	else
> 		ref_div_min = pll->min_ref_div;
>-	ref_div_max = pll->max_ref_div;
>+
>+	if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV &&
>+	    pll->flags & RADEON_PLL_USE_REF_DIV)
>+		ref_div_max = pll->reference_div;
>+	else
>+		ref_div_max = pll->max_ref_div;
> 
> 	/* determine allowed post divider range */
> 	if (pll->flags & RADEON_PLL_USE_POST_DIV) {
>-- 
>1.9.1
>

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Attachments on bug 77673: 97606 | 97607 | 97608 | 97609

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