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 12:00:38 -0700 |
| commit | 0e8180c09032619ff4980d6e59dc63ca2e60f774 (patch) | |
| tree | bee78715674e5ba6e5efa08bbfd8f8d469b78c0e | |
| parent | a216349b416b1ad9a27c9e09d6b2c3df7fd679d9 (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>
| -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 ee14b8a3ebc8..41262f4b4a19 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -921,7 +921,11 @@ 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 |