From 0bc3a4eda1fb0edd8678c9405ab18d47327650cd Mon Sep 17 00:00:00 2001 From: Lucas De Marchi Date: Tue, 22 Jun 2021 14:22:10 -0700 Subject: [PATCH] drm/i915/display: use max_level to control loop 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 Reviewed-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20210622212210.3746133-2-lucas.demarchi@intel.com --- drivers/gpu/drm/i915/intel_pm.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index bd04e19917bc..74a8863b94c2 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -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; - } } /* -- 2.20.1