From patchwork Mon Feb 20 14:08:37 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 9582925 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3DAC760578 for ; Mon, 20 Feb 2017 14:09:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2F8D62886F for ; Mon, 20 Feb 2017 14:09:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2439628875; Mon, 20 Feb 2017 14:09:03 +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=-4.2 required=2.0 tests=BAYES_00, 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 C471E2886F for ; Mon, 20 Feb 2017 14:09:02 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 360A36E409; Mon, 20 Feb 2017 14:09:02 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id D6DFC6E40E for ; Mon, 20 Feb 2017 14:08:58 +0000 (UTC) Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 78D9161BB9; Mon, 20 Feb 2017 14:08:59 +0000 (UTC) Received: from shalem.localdomain.com (ovpn-117-9.ams2.redhat.com [10.36.117.9]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v1KE8lWI022874; Mon, 20 Feb 2017 09:08:58 -0500 From: Hans de Goede To: Daniel Vetter , Jani Nikula , =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Mon, 20 Feb 2017 15:08:37 +0100 Message-Id: <20170220140845.1714-8-hdegoede@redhat.com> In-Reply-To: <20170220140845.1714-1-hdegoede@redhat.com> References: <20170220140845.1714-1-hdegoede@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Mon, 20 Feb 2017 14:08:59 +0000 (UTC) Cc: Hans de Goede , intel-gfx Subject: [Intel-gfx] [PATCH resend 07/15] drm/i915/dsi: Drop bogus MIPI_SEQ_ASSERT_RESET before POWER_ON X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP MIPI_SEQ_ASSERT_RESET before POWER_ON is not necessary for 2 reasons: 1) The reset should already be asserted before intel_dsi_pre_enable() gets called 2) Most (some?) VBTs will ensure reset was asserted in their MIPI_SEQ_DEASSERT_RESET themselves Signed-off-by: Hans de Goede --- drivers/gpu/drm/i915/intel_dsi.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 78d5884..4ebf308 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -669,7 +669,6 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder, /* put device in ready state */ intel_dsi_device_ready(encoder); - intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_ASSERT_RESET); intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_POWER_ON); intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_DEASSERT_RESET); intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_INIT_OTP);