Commit f389e7ac authored by Jouni Högander's avatar Jouni Högander
Browse files

drm/i915/psr: Add helpers for block count number handling 



Add helpers to make it more clear how PSR2_CTL[Block Count Number]
is configured.

Signed-off-by: default avatarJouni Högander <jouni.hogander@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230329150703.432072-5-jouni.hogander@intel.com
parent cdb015a6

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

+14 −4
Original line number Diff line number Diff line
@@ -519,6 +519,17 @@ static u32 intel_psr2_get_tp_time(struct intel_dp *intel_dp) 
	return val;

}



static int psr2_block_count_lines(struct intel_dp *intel_dp)

{

	return intel_dp->psr.io_wake_lines < 9 &&

		intel_dp->psr.fast_wake_lines < 9 ? 8 : 12;

}



static int psr2_block_count(struct intel_dp *intel_dp)

{

	return psr2_block_count_lines(intel_dp) / 4;

}



static void hsw_activate_psr2(struct intel_dp *intel_dp)

{

	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
@@ -536,11 +547,10 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp) 
	val |= intel_psr2_get_tp_time(intel_dp);



	if (DISPLAY_VER(dev_priv) >= 12) {

		if (intel_dp->psr.io_wake_lines < 9 &&

		    intel_dp->psr.fast_wake_lines < 9)

			val |= TGL_EDP_PSR2_BLOCK_COUNT_NUM_2;

		else

		if (psr2_block_count(intel_dp) > 2)

			val |= TGL_EDP_PSR2_BLOCK_COUNT_NUM_3;

		else

			val |= TGL_EDP_PSR2_BLOCK_COUNT_NUM_2;

	}



	/* Wa_22012278275:adl-p */