aboutsummaryrefslogtreecommitdiff
path: root/drivers/gpu/drm
diff options
context:
space:
mode:
authorAlex Deucher <alexdeucher@gmail.com>2011-03-22 01:46:12 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2011-03-27 11:36:33 -0700
commit3b7a3e87e21e4d0a7d231bdab2b00af84a89106b (patch)
tree3dff9f70ea580df9332325fa401f9e64874cc912 /drivers/gpu/drm
parent8ee663ceb3d0ee74a746800f3919baf5a621ead9 (diff)
downloadlinux-2.6.38-lt-ux500-3b7a3e87e21e4d0a7d231bdab2b00af84a89106b.tar.gz
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/gpu/drm')
-rw-r--r--drivers/gpu/drm/radeon/atombios_crtc.c6
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