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Commit 41e6fc4c authored by Paulo Zanoni's avatar Paulo Zanoni Committed by Daniel Vetter
Browse files

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: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: default avatarDamien Lespiau <damien.lespiau@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent ba0fbca4

drivers/gpu/drm/i915/intel_display.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -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

	/* 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.

	 * 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) ==

	    ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) ==

	     GAMMA_MODE_MODE_SPLIT)) {

	     GAMMA_MODE_MODE_SPLIT)) {

		hsw_disable_ips(intel_crtc);

		hsw_disable_ips(intel_crtc);