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author | David S. Miller <davem@davemloft.net> | 2014-05-24 00:32:30 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2014-05-24 00:32:30 -0400 |
commit | 54e5c4def0614ab540fbdf68e45342a4af141702 (patch) | |
tree | 95a2f61c72336932e83d9e4180cd9739106d624b /drivers/gpu/drm/radeon/radeon_display.c | |
parent | be65de7174123e02477bd488db1a657caf0f9947 (diff) | |
parent | 1ee1ceafb572f1a925809168267a7962a4289de8 (diff) | |
download | linux-54e5c4def0614ab540fbdf68e45342a4af141702.tar.gz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/bonding/bond_alb.c
drivers/net/ethernet/altera/altera_msgdma.c
drivers/net/ethernet/altera/altera_sgdma.c
net/ipv6/xfrm6_output.c
Several cases of overlapping changes.
The xfrm6_output.c has a bug fix which overlaps the renaming
of skb->local_df to skb->ignore_df.
In the Altera TSE driver cases, the register access cleanups
in net-next overlapped with bug fixes done in net.
Similarly a bug fix to send ALB packets in the bonding driver using
the right source address overlaps with cleanups in net-next.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 8d99d5ee8014..f00dbbf4d806 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -284,6 +284,10 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) u32 update_pending; int vpos, hpos; + /* can happen during initialization */ + if (radeon_crtc == NULL) + return; + spin_lock_irqsave(&rdev->ddev->event_lock, flags); work = radeon_crtc->unpin_work; if (work == NULL || @@ -826,14 +830,14 @@ static void avivo_reduce_ratio(unsigned *nom, unsigned *den, /* make sure nominator is large enough */ if (*nom < nom_min) { - tmp = (nom_min + *nom - 1) / *nom; + tmp = DIV_ROUND_UP(nom_min, *nom); *nom *= tmp; *den *= tmp; } /* make sure the denominator is large enough */ if (*den < den_min) { - tmp = (den_min + *den - 1) / *den; + tmp = DIV_ROUND_UP(den_min, *den); *nom *= tmp; *den *= tmp; } @@ -858,7 +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); @@ -993,6 +997,16 @@ void radeon_compute_pll_avivo(struct radeon_pll *pll, /* this also makes sure that the reference divider is large enough */ avivo_reduce_ratio(&fb_div, &ref_div, fb_div_min, ref_div_min); + /* avoid high jitter with small fractional dividers */ + if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV && (fb_div % 10)) { + fb_div_min = max(fb_div_min, (9 - (fb_div % 10)) * 20 + 50); + if (fb_div < fb_div_min) { + unsigned tmp = DIV_ROUND_UP(fb_div_min, fb_div); + fb_div *= tmp; + ref_div *= tmp; + } + } + /* and finally save the result */ if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { *fb_div_p = fb_div / 10; |