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| author | Dave Airlie <airlied@redhat.com> | 2018-01-18 13:30:22 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2018-01-18 13:30:22 +1000 |
| commit | 75f195f46f27a2524b249b95e6f241cd13c7e549 (patch) | |
| tree | 6cad502a18241d0a8d0c48d8f125d60d6d5ddc45 /drivers/gpu | |
| parent | 894219d7d2c37d17aad67df9a97b9a08a1426507 (diff) | |
| parent | 3b9c57cef4de80f29885e1edf69828de8d3fae6b (diff) | |
| download | linux-75f195f46f27a2524b249b95e6f241cd13c7e549.tar.bz2 | |
Merge tag 'drm-misc-fixes-2018-01-17' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Final 4.15 drm-misc pull:
Just 3 sun4i patches to fix clock computation/checks.
* tag 'drm-misc-fixes-2018-01-17' of git://anongit.freedesktop.org/drm/drm-misc:
drm/sun4i: hdmi: Add missing rate halving check in sun4i_tmds_determine_rate
drm/sun4i: hdmi: Fix incorrect assignment in sun4i_tmds_determine_rate
drm/sun4i: hdmi: Check for unset best_parent in sun4i_tmds_determine_rate
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c index dc332ea56f6c..3ecffa52c814 100644 --- a/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c +++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c @@ -102,10 +102,13 @@ static int sun4i_tmds_determine_rate(struct clk_hw *hw, goto out; } - if (abs(rate - rounded / i) < - abs(rate - best_parent / best_div)) { + if (!best_parent || + abs(rate - rounded / i / j) < + abs(rate - best_parent / best_half / + best_div)) { best_parent = rounded; - best_div = i; + best_half = i; + best_div = j; } } } |