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drm/i915: Fix HPLL watermark readout for g4x

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If HPLL watermarks are already enabled, let's not mark them as
disabled by forgetting to bump 'level' before we call
g4x_raw_plane_wm_set().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210514125751.17075-6-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
This commit is contained in:
Ville Syrjälä
2021-05-14 15:57:42 +03:00
parent 9ce5884e51
commit ab98ebb9a9
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/i915/intel_pm.c
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@@ -6828,7 +6828,8 @@ void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv)
for_each_plane_id_on_crtc(crtc, plane_id)
raw->plane[plane_id] = active->wm.plane[plane_id];
if (++level > max_level)
level = G4X_WM_LEVEL_SR;
if (level > max_level)
goto out;
raw = &crtc_state->wm.g4x.raw[level];
@@ -6837,7 +6838,8 @@ void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv)
raw->plane[PLANE_SPRITE0] = 0;
raw->fbc = active->sr.fbc;
if (++level > max_level)
level = G4X_WM_LEVEL_HPLL;
if (level > max_level)
goto out;
raw = &crtc_state->wm.g4x.raw[level];
@@ -6846,6 +6848,7 @@ void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv)
raw->plane[PLANE_SPRITE0] = 0;
raw->fbc = active->hpll.fbc;
level++;
out:
for_each_plane_id_on_crtc(crtc, plane_id)
g4x_raw_plane_wm_set(crtc_state, level,