diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2011-03-22 01:46:12 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-03-27 11:36:33 -0700 |
| commit | 3b7a3e87e21e4d0a7d231bdab2b00af84a89106b (patch) | |
| tree | 3dff9f70ea580df9332325fa401f9e64874cc912 /drivers | |
| parent | 8ee663ceb3d0ee74a746800f3919baf5a621ead9 (diff) | |
drm/radeon/kms: prefer legacy pll algo for tv-out
commit 64146f8b2af1ba77fe3c21d9d6d7213b9bb72b40 upstream.
ntsc seems to work fine with either algo, some
pal TVs seem pickier.
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=30832
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_crtc.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 4a5a73bcf46..e967cc869b3 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -957,7 +957,11 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode /* adjust pixel clock as needed */ adjusted_clock = atombios_adjust_pll(crtc, mode, pll, ss_enabled, &ss); - if (ASIC_IS_AVIVO(rdev)) + if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)) + /* TV seems to prefer the legacy algo on some boards */ + radeon_compute_pll_legacy(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div, + &ref_div, &post_div); + else if (ASIC_IS_AVIVO(rdev)) radeon_compute_pll_avivo(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div, &ref_div, &post_div); else |