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 X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9AC5BC433DF for ; Thu, 18 Jun 2020 23:21:55 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 773FC2080D for ; Thu, 18 Jun 2020 23:21:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 773FC2080D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C8F6F6E48D; Thu, 18 Jun 2020 23:21:52 +0000 (UTC) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2B1F06E484; Thu, 18 Jun 2020 23:21:51 +0000 (UTC) IronPort-SDR: Of7j82n7ywX+HP2Cc1LDtTt/TrcfBpRPtYskaBEjkFCvVQAXESKMn67/GbamUU38LddrmuC1x7 Zg5TguXRI9sg== X-IronPort-AV: E=McAfee;i="6000,8403,9656"; a="130136489" X-IronPort-AV: E=Sophos;i="5.75,253,1589266800"; d="scan'208";a="130136489" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jun 2020 16:21:50 -0700 IronPort-SDR: d0RREbJANA5nmi/MaT59IThMUpkgu1qOmTmd+SAES1gl3lHyLVANSkNtlqVPNXfhCJKCAApIVY /UHKhKd+fnhw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,253,1589266800"; d="scan'208";a="299866017" Received: from labuser-z97x-ud5h.jf.intel.com (HELO intel.com) ([10.165.21.211]) by fmsmga004.fm.intel.com with ESMTP; 18 Jun 2020 16:21:48 -0700 Date: Thu, 18 Jun 2020 16:23:03 -0700 From: Manasi Navare To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH v6 1/3] drm/dp: DRM DP helper for reading Ignore MSA from DPCD Message-ID: <20200618232303.GB32149@intel.com> References: <20200612230444.10121-1-manasi.d.navare@intel.com> <20200612230444.10121-2-manasi.d.navare@intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200612230444.10121-2-manasi.d.navare@intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nicholas Kazlauskas Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" @Jani N, could you give an ACK on this if this looks okay, addressed your review comments regarding the name of the function. Else I have a r-b functionality wise so good to get merged? Regards Manasi On Fri, Jun 12, 2020 at 04:04:42PM -0700, Manasi Navare wrote: > DP sink device sets the Ignore MSA bit in its > DP_DOWNSTREAM_PORT_COUNT register to indicate its ability to > ignore the MSA video timing parameters and its ability to support > seamless video timing change over a range of timing exposed by > DisplayID and EDID. > This is required for the sink to indicate that it is Adaptive sync > capable. > = > v3: > * Fi the typo in commit message (Manasi) > v2: > * Rename to describe what the function does (Jani Nikula) > = > Cc: Jani Nikula > Cc: Ville Syrj=E4l=E4 > Cc: Harry Wentland > Cc: Nicholas Kazlauskas > Signed-off-by: Manasi Navare > Reviewed-by: Harry Wentland > --- > include/drm/drm_dp_helper.h | 8 ++++++++ > 1 file changed, 8 insertions(+) > = > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > index 1165ec105638..e47dc22ebf50 100644 > --- a/include/drm/drm_dp_helper.h > +++ b/include/drm/drm_dp_helper.h > @@ -1457,6 +1457,14 @@ drm_dp_alternate_scrambler_reset_cap(const u8 dpcd= [DP_RECEIVER_CAP_SIZE]) > DP_ALTERNATE_SCRAMBLER_RESET_CAP; > } > = > +/* Ignore MSA timing for Adaptive Sync support on DP 1.4 */ > +static inline bool > +drm_dp_sink_can_do_video_without_timing_msa(const u8 dpcd[DP_RECEIVER_CA= P_SIZE]) > +{ > + return dpcd[DP_DOWN_STREAM_PORT_COUNT] & > + DP_MSA_TIMING_PAR_IGNORED; > +} > + > /* > * DisplayPort AUX channel > */ > -- = > 2.19.1 > = _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel