https://bugs.freedesktop.org/show_bug.cgi?id=76564
--- Comment #43 from Alex Deucher <agd5f at yahoo.com> ---
We could also update the adjusted mode clock to the actual clock set by the pll
so that drm_calc_timestamping_constants() uses the actual clock value on the
PLL. E.g.,
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c
b/drivers/gpu/drm/radeon/atombios_crtc.c
index daa4dd3..2a2da82 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -1085,6 +1085,7 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc,
struct drm_display_mode
atombios_crtc_program_ss(rdev, ATOM_ENABLE,
radeon_crtc->pll_id,
radeon_crtc->crtc_id,
&radeon_crtc->ss);
}
+ mode->clock = pll_clock * 10;
}
static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
--
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