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Commit 7546a384 authored by Ander Conselvan de Oliveira's avatar Ander Conselvan de Oliveira Committed by Daniel Vetter
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drm/i915: Update comment in clear_intel_crtc_state() 



Explain why a few fields of the new pipe_config have their values
preserved, while the others are zeroed.

Signed-off-by: default avatarAnder Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent b88baa2a

drivers/gpu/drm/i915/intel_display.c

+5 −1
Original line number Diff line number Diff line
@@ -11485,7 +11485,11 @@ clear_intel_crtc_state(struct intel_crtc_state *crtc_state) 
	enum intel_dpll_id shared_dpll;

	uint32_t ddi_pll_sel;



	/* Clear only the intel specific part of the crtc state excluding scalers */

	/* FIXME: before the switch to atomic started, a new pipe_config was

	 * kzalloc'd. Code that depends on any field being zero should be

	 * fixed, so that the crtc_state can be safely duplicated. For now,

	 * only fields that are know to not cause problems are preserved. */



	tmp_state = crtc_state->base;

	scaler_state = crtc_state->scaler_state;

	shared_dpll = crtc_state->shared_dpll;