From: Gustavo Sousa Date: Tue, 12 Mar 2024 16:36:34 +0000 (-0300) Subject: drm/i915/cdclk: Only compute squash waveform when necessary X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=452269e2f0ea180a4bc39fd4643df7fe2ea0bb8e;p=linux.git drm/i915/cdclk: Only compute squash waveform when necessary It is no use computing the squash waveform if we are not going to use it. Move the call to cdclk_squash_waveform() inside the block guarded by HAS_CDCLK_SQUASH(dev_priv). v2: - Move "u16 waveform" declaration to inside the block where it is initialized and used. (Matt) Reviewed-by: Matt Roper Signed-off-by: Gustavo Sousa Link: https://patchwork.freedesktop.org/patch/msgid/20240312163639.172321-4-gustavo.sousa@intel.com Signed-off-by: Lucas De Marchi --- diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index ad0f03e51e4a5..354a9dba64402 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -2006,7 +2006,6 @@ static void _bxt_set_cdclk(struct drm_i915_private *dev_priv, { int cdclk = cdclk_config->cdclk; int vco = cdclk_config->vco; - u16 waveform; if (HAS_CDCLK_CRAWL(dev_priv) && dev_priv->display.cdclk.hw.vco > 0 && vco > 0 && !cdclk_pll_is_unknown(dev_priv->display.cdclk.hw.vco)) { @@ -2021,10 +2020,11 @@ static void _bxt_set_cdclk(struct drm_i915_private *dev_priv, } else bxt_cdclk_pll_update(dev_priv, vco); - waveform = cdclk_squash_waveform(dev_priv, cdclk); + if (HAS_CDCLK_SQUASH(dev_priv)) { + u16 waveform = cdclk_squash_waveform(dev_priv, cdclk); - if (HAS_CDCLK_SQUASH(dev_priv)) dg2_cdclk_squash_program(dev_priv, waveform); + } intel_de_write(dev_priv, CDCLK_CTL, bxt_cdclk_ctl(dev_priv, cdclk_config, pipe));