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drm/i915/display: use max_level to control loop

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Since we are already loop through the levels to sanitize them, mark what
is the real max_level so it can be used in subsequent loop. This makes
it simpler to later add the adjustment latency to "valid levels". No
change in behavior, just makes the code easier to follow.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210622212210.3746133-2-lucas.demarchi@intel.com
This commit is contained in:
Lucas De Marchi 2021-06-22 14:22:10 -07:00
parent cbeeb00f14
commit 0bc3a4eda1
1 changed files with 4 additions and 5 deletions
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9
drivers/gpu/drm/i915/intel_pm.c
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@ -2908,6 +2908,9 @@ static void intel_read_wm_latency(struct drm_i915_private *dev_priv,
if (wm[level] == 0) {
for (i = level + 1; i <= max_level; i++)
wm[i] = 0;
max_level = level - 1;
break;
}
}
@ -2922,12 +2925,8 @@ static void intel_read_wm_latency(struct drm_i915_private *dev_priv,
if (wm[0] == 0) {
u8 adjust = DISPLAY_VER(dev_priv) >= 12 ? 3 : 2;
wm[0] += adjust;
for (level = 1; level <= max_level; level++) {
if (wm[level] == 0)
break;
for (level = 0; level <= max_level; level++)
wm[level] += adjust;
}
}
/*