From patchwork Wed Jul 10 12:58:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= X-Patchwork-Id: 11038453 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 364E7912 for ; Wed, 10 Jul 2019 12:58:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2960B28971 for ; Wed, 10 Jul 2019 12:58:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1DF1F28972; Wed, 10 Jul 2019 12:58:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 104D328723 for ; Wed, 10 Jul 2019 12:58:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E99AA6E0D6; Wed, 10 Jul 2019 12:58:55 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 750866E0D6 for ; Wed, 10 Jul 2019 12:58:54 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Jul 2019 05:58:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,474,1557212400"; d="scan'208";a="176830626" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by orsmga002.jf.intel.com with SMTP; 10 Jul 2019 05:58:51 -0700 Received: by stinkbox (sSMTP sendmail emulation); Wed, 10 Jul 2019 15:58:51 +0300 From: Ville Syrjala To: intel-gfx@lists.freedesktop.org Date: Wed, 10 Jul 2019 15:58:51 +0300 Message-Id: <20190710125851.3275-1-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH] drm/i915: Don't overestimate 4:2:0 link symbol clock X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 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" X-Virus-Scanned: ClamAV using ClamSMTP From: Ville Syrjälä With 4:2:0 output the LS clock can be half of what it is with 4:4:4. Make that happen. Cc: Gwan-gyeong Mun Signed-off-by: Ville Syrjälä Reviewed-by: Gwan-gyeong Mun Tested-by: Gwan-gyeong Mun --- drivers/gpu/drm/i915/display/intel_dp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 0bdb7ecc5a81..1dfacf090fb8 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1853,8 +1853,10 @@ intel_dp_compute_link_config_wide(struct intel_dp *intel_dp, int mode_rate, link_clock, link_avail; for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) { + int output_bpp = intel_dp_output_bpp(pipe_config, bpp); + mode_rate = intel_dp_link_required(adjusted_mode->crtc_clock, - bpp); + output_bpp); for (clock = limits->min_clock; clock <= limits->max_clock; clock++) { for (lane_count = limits->min_lane_count;