Commit 449c2d59 authored by Jouni Högander's avatar Jouni Högander
Browse files

drm/i915/alpm: Alpm aux wake configuration for lnl 



Lunarlake has some configurations in ALPM_CTL register for legacy ALPM as
well. Write these.

Bspec: 71477

v2: move version check to lnl_alpm_configure

Signed-off-by: default avatarJouni Högander <jouni.hogander@intel.com>
Reviewed-by: default avatarArun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240130111130.3298779-5-jouni.hogander@intel.com
parent 29f3067a

drivers/gpu/drm/i915/display/intel_psr.c

+17 −0
Original line number Diff line number Diff line
@@ -1554,6 +1554,21 @@ static void wm_optimization_wa(struct intel_dp *intel_dp, 
			     wa_16013835468_bit_get(intel_dp), 0);

}



static void lnl_alpm_configure(struct intel_dp *intel_dp)

{

	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);

	enum transcoder cpu_transcoder = intel_dp->psr.transcoder;

	struct intel_psr *psr = &intel_dp->psr;



	if (DISPLAY_VER(dev_priv) < 20)

		return;



	intel_de_write(dev_priv, ALPM_CTL(cpu_transcoder),

		       ALPM_CTL_EXTENDED_FAST_WAKE_ENABLE |

		       ALPM_CTL_ALPM_ENTRY_CHECK(psr->alpm_parameters.check_entry_lines) |

		       ALPM_CTL_EXTENDED_FAST_WAKE_TIME(psr->alpm_parameters.fast_wake_lines));

}



static void intel_psr_enable_source(struct intel_dp *intel_dp,

				    const struct intel_crtc_state *crtc_state)

{
@@ -1619,6 +1634,8 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp, 
			     intel_dp->psr.psr2_sel_fetch_enabled ?

			     IGNORE_PSR2_HW_TRACKING : 0);



	lnl_alpm_configure(intel_dp);



	/*

	 * Wa_16013835468

	 * Wa_14015648006