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 EDCC4C25B7A for ; Mon, 20 May 2024 16:41:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BE59A10E7DA; Mon, 20 May 2024 16:41:41 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Km8Vl5wT"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id CBE6C10E7DA for ; Mon, 20 May 2024 16:41:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1716223300; x=1747759300; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=9HPonggfaLAUaDC11jWLmozm7ZTBzJ5is6AMVe7Jam4=; b=Km8Vl5wTLXj4DmSRSLEFFoIy0haE2fB8sbILzWp5L5vD8dr7QknfIRfa 8ZoaguXe2AOt6OrufhpEHN/RW1YwKBLWQeBPGGyD2eDTlDunrX32F+hhf Inpi2i4bQdroIdqNMq5MSKcLbBJRk3YyZZTz7c3u7NdMCYvehwdXCyff4 +b8RAeC/6zlv2aJ9huagzdn2yYh/iPUFdQ208Yxkr0kbP0QQ1u/ZVnHzH MQ3CeRebeztOSrHtQ0nku0/vBL7M9BDm9kof+8ovrw/eMECJ7DHR0gn/6 F7xwkv1bJI3wanEJlS1PQdfoLiOL3TNKsFtdVgA1bJIlLub7Nc/lz3gO/ Q==; X-CSE-ConnectionGUID: 5PsbLu6DShm/UN72Ze+A4Q== X-CSE-MsgGUID: TzPA5ulJSk2rvUVZKWalOw== X-IronPort-AV: E=McAfee;i="6600,9927,11078"; a="29883056" X-IronPort-AV: E=Sophos;i="6.08,175,1712646000"; d="scan'208";a="29883056" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2024 09:41:39 -0700 X-CSE-ConnectionGUID: CGXItdwVR2GiLvuQmYoLKA== X-CSE-MsgGUID: enzFKtdRRd6AQOJdhYCoYQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,175,1712646000"; d="scan'208";a="32579094" Received: from stinkpipe.fi.intel.com (HELO stinkbox) ([10.237.72.74]) by fmviesa008.fm.intel.com with SMTP; 20 May 2024 09:41:38 -0700 Received: by stinkbox (sSMTP sendmail emulation); Mon, 20 May 2024 19:41:36 +0300 Date: Mon, 20 May 2024 19:41:36 +0300 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Jani Nikula Cc: intel-gfx@lists.freedesktop.org Subject: Re: [PATCH] drm/i915: Bump max TMDS bitrate to 6 Gbps on ADL/DG2+ Message-ID: References: <20240516182715.27119-1-ville.syrjala@linux.intel.com> <87le44u5uh.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <87le44u5uh.fsf@intel.com> X-Patchwork-Hint: comment X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Mon, May 20, 2024 at 01:37:26PM +0300, Jani Nikula wrote: > On Thu, 16 May 2024, Ville Syrjala wrote: > > From: Ville Syrjälä > > > > Bspec lists the mas TMDS bitrate as 6 Gbps on ADL/DG2. > > *max > > There's also ADL-S with display 12 and 6 Gbps support? Looks like it. Too many weird platform variants... > > BR, > Jani. > > > Bump our limit to match. > > > > Signed-off-by: Ville Syrjälä > > --- > > drivers/gpu/drm/i915/display/intel_hdmi.c | 4 +++- > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c > > index 0faf2afa1c09..bd0ba4edcd1d 100644 > > --- a/drivers/gpu/drm/i915/display/intel_hdmi.c > > +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c > > @@ -1784,7 +1784,9 @@ static int intel_hdmi_source_max_tmds_clock(struct intel_encoder *encoder) > > struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); > > int max_tmds_clock, vbt_max_tmds_clock; > > > > - if (DISPLAY_VER(dev_priv) >= 10) > > + if (DISPLAY_VER(dev_priv) >= 13) > > + max_tmds_clock = 600000; > > + else if (DISPLAY_VER(dev_priv) >= 10) > > max_tmds_clock = 594000; > > else if (DISPLAY_VER(dev_priv) >= 8 || IS_HASWELL(dev_priv)) > > max_tmds_clock = 300000; > > -- > Jani Nikula, Intel -- Ville Syrjälä Intel