From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9E409C5AC81 for ; Fri, 7 Aug 2026 04:32:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0CF9F10F37E; Fri, 7 Aug 2026 04:32:10 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="GekkoROX"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) by gabe.freedesktop.org (Postfix) with ESMTPS id 998F710F37A; Fri, 7 Aug 2026 04:32:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1786077129; x=1817613129; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hGCdCTNnH1VPTlc5l8J33xfbQTVkEAa0+LNqLobwMyU=; b=GekkoROXbqRXdF/Zb71yUsoTpRPEyj6r4Dy94rHyVZ1EAlei6K7kmvpM pDBa2Aq7AY95MvFJZL70Ms1QVmOZBNFys4nxSTjtpUoP11XQjcpekuZBL ayImcnmdUq9a0hcnhsdrCYw6O7gf1mTbG89tMeXdPYVOfz+33iw6AxqHo 9G5nZPtNeY7cKLPDr0wT/vgBVCMAxGKCH/Gs9zUz97FneAhjXNMSqLVVo FBigirgZ2GnEySVv9BGumLM0GC21B1SiyC14k5JC3U9BIrOVZ3oOCzK6E XiX0ySm82L2wZqdLcUhANM+Valw7IJbhAmxCN9OOdhuJNKM43s7IaQksL w==; X-CSE-ConnectionGUID: tIrfGZ8YQDaLFf4CIE2+fw== X-CSE-MsgGUID: 8nwn+nxXTwiflOgWUf/NQw== X-IronPort-AV: E=McAfee;i="6800,10657,11867"; a="86619271" X-IronPort-AV: E=Sophos;i="6.25,209,1779174000"; d="scan'208";a="86619271" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2026 21:32:08 -0700 X-CSE-ConnectionGUID: m6cme1PoShqh1BzK4ZMNEA== X-CSE-MsgGUID: P5ieKCK3QparWk0iDSQzqQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,209,1779174000"; d="scan'208";a="285666174" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by fmviesa002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Aug 2026 21:32:04 -0700 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org, jani.nikula@linux.intel.com, uma.shankar@intel.com, ville.syrjala@linux.intel.com, suraj.kandpal@intel.com Subject: [PATCH 15/44] drm/i915/intel_hdmi: Add helper to disable FRL Date: Fri, 7 Aug 2026 09:44:00 +0530 Message-ID: <20260807041430.229038-16-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260807041430.229038-1-ankit.k.nautiyal@intel.com> References: <20260807041430.229038-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" Add function to reset the SCDC FRL configuration and Transcoder FRL configuration registers. Signed-off-by: Ankit Nautiyal --- drivers/gpu/drm/i915/display/intel_hdmi.c | 28 +++++++++++++++++++++++ drivers/gpu/drm/i915/display/intel_hdmi.h | 2 ++ 2 files changed, 30 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index ff200d662a3f..fe4923c82463 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -3781,3 +3781,31 @@ int intel_hdmi_start_frl(struct intel_encoder *encoder, return -EINVAL; } + +static void intel_hdmi_frl_ltsl(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state) +{ + struct intel_display *display = to_intel_display(encoder); + struct i2c_adapter *adapter = + intel_gmbus_get_adapter(display, intel_hdmi_ddc_pin(encoder)); + + drm_scdc_disable_frl(adapter); + drm_scdc_clear_update_flags(adapter, SCDC_FLT_UPDATE); +} + +void intel_hdmi_disable_frl(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state) +{ + struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); + struct intel_display *display = to_intel_display(encoder); + enum transcoder trans = crtc_state->cpu_transcoder; + + if (!crtc_state->frl.enable) + return; + + intel_hdmi_frl_ltsl(encoder, crtc_state); + intel_de_rmw(display, TRANS_HDMI_FRL_CFG(display, trans), + TRANS_HDMI_FRL_ENABLE | TRANS_HDMI_FRL_TRAINING_COMPLETE, 0); + + intel_hdmi_reset_frl_config(intel_hdmi); +} diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.h b/drivers/gpu/drm/i915/display/intel_hdmi.h index 1724e6075a9b..59a561ad28e0 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.h +++ b/drivers/gpu/drm/i915/display/intel_hdmi.h @@ -66,6 +66,8 @@ bool intel_hdmi_is_frl(u32 clock); void intel_hdmi_prepare_for_frl_mode(const struct intel_crtc_state *crtc_state); int intel_hdmi_start_frl(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); +void intel_hdmi_disable_frl(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state); void hsw_write_infoframe(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, unsigned int type, -- 2.50.1