From: Imre Deak Date: Mon, 29 Feb 2016 20:10:33 +0000 (+0200) Subject: drm/i915: Add missing NULL check before calling initial_watermarks X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=1d5bf5d9d9ef0c1e639d36178a224d83888c5a29;p=openwrt%2Fstaging%2Fblogic.git drm/i915: Add missing NULL check before calling initial_watermarks Not all platforms set this callback, so NULL check it before calling it. v2: - Call intel_update_watermarks() on HSW+ where the callback is not set. (Matt) CC: Matt Roper Fixes: commit ed4a6a7ca853 ("drm/i915: Add two-stage ILK-style watermark programming (v11)") Signed-off-by: Imre Deak Link: http://patchwork.freedesktop.org/patch/msgid/1456776633-3401-1-git-send-email-imre.deak@intel.com Reviewed-by: Matt Roper --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index c803690293d7..368d24728b16 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4957,7 +4957,8 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc) */ intel_crtc_load_lut(crtc); - dev_priv->display.initial_watermarks(intel_crtc->config); + if (dev_priv->display.initial_watermarks != NULL) + dev_priv->display.initial_watermarks(intel_crtc->config); intel_enable_pipe(intel_crtc); if (intel_crtc->config->has_pch_encoder) @@ -5056,7 +5057,10 @@ static void haswell_crtc_enable(struct drm_crtc *crtc) if (!intel_crtc->config->has_dsi_encoder) intel_ddi_enable_transcoder_func(crtc); - dev_priv->display.initial_watermarks(pipe_config); + if (dev_priv->display.initial_watermarks != NULL) + dev_priv->display.initial_watermarks(pipe_config); + else + intel_update_watermarks(crtc); intel_enable_pipe(intel_crtc); if (intel_crtc->config->has_pch_encoder)