drm/radeon/kms/avivo: add support for new pll selection algo
Supported on all AVIVO-based asics.
Can be disabled via the new_pll module parameter:
new_pll=0 - disable
new_pll=1 - enable
enabled by default
[airlied: fixed to use do_div]
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 6d82417..260fcf5 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -499,8 +499,18 @@
else
pll = &rdev->clock.p2pll;
- radeon_compute_pll(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div,
- &ref_div, &post_div, pll_flags);
+ if (ASIC_IS_AVIVO(rdev)) {
+ if (radeon_new_pll)
+ radeon_compute_pll_avivo(pll, adjusted_clock, &pll_clock,
+ &fb_div, &frac_fb_div,
+ &ref_div, &post_div, pll_flags);
+ else
+ radeon_compute_pll(pll, adjusted_clock, &pll_clock,
+ &fb_div, &frac_fb_div,
+ &ref_div, &post_div, pll_flags);
+ } else
+ radeon_compute_pll(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div,
+ &ref_div, &post_div, pll_flags);
index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,