From: Jouni Högander Date: Wed, 29 Mar 2023 15:07:01 +0000 (+0300) Subject: drm/i915/psr: Add helpers for block count number handling X-Git-Tag: v6.6.7~1918^2~17^2~382 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f389e7ac8d8a9a17bf59507d02ffb756c19b4af5;p=platform%2Fkernel%2Flinux-starfive.git 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: Jouni Högander Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20230329150703.432072-5-jouni.hogander@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 98f48eb..07b0c01 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -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 */