From: Paulo Zanoni Date: Wed, 8 Jan 2014 19:26:31 +0000 (-0200) Subject: drm/i915: only apply GAMMA_MODE IPS WA on HSW X-Git-Tag: next-20140116~60^2~23 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=41e6fc4cd474cc0d4765c7fbf98935245fd48066;p=karo-tx-linux.git drm/i915: only apply GAMMA_MODE IPS WA on HSW The WA is mentioned in HSW's GAMMA_MODE register documentation, but not on on BDW's documentation, so let's assume it is not needed there. Signed-off-by: Paulo Zanoni Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index aaa4ae6f40c3..554e83d043fe 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3496,7 +3496,7 @@ static void intel_crtc_load_lut(struct drm_crtc *crtc) /* Workaround : Do not read or write the pipe palette/gamma data while * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled. */ - if (intel_crtc->config.ips_enabled && + if (IS_HASWELL(dev) && intel_crtc->config.ips_enabled && ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) == GAMMA_MODE_MODE_SPLIT)) { hsw_disable_ips(intel_crtc);