From patchwork Thu Oct 11 00:16:49 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Deepak Singh Rawat X-Patchwork-Id: 10635489 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 05EFE17E1 for ; Thu, 11 Oct 2018 00:17:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E19FB29142 for ; Thu, 11 Oct 2018 00:17:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D62F02ACEA; Thu, 11 Oct 2018 00:17:30 +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 8E57029142 for ; Thu, 11 Oct 2018 00:17:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 133846E377; Thu, 11 Oct 2018 00:17:21 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from EX13-EDG-OU-001.vmware.com (ex13-edg-ou-001.vmware.com [208.91.0.189]) by gabe.freedesktop.org (Postfix) with ESMTPS id A7F4E6E375 for ; Thu, 11 Oct 2018 00:17:19 +0000 (UTC) Received: from sc9-mailhost3.vmware.com (10.113.161.73) by EX13-EDG-OU-001.vmware.com (10.113.208.155) with Microsoft SMTP Server id 15.0.1156.6; Wed, 10 Oct 2018 17:17:02 -0700 Received: from ubuntu.localdomain (promb-2n-dhcp77.eng.vmware.com [10.20.88.77]) by sc9-mailhost3.vmware.com (Postfix) with ESMTP id 6263B40808; Wed, 10 Oct 2018 17:17:19 -0700 (PDT) From: Deepak Rawat To: , , , Subject: [PATCH v3 10/18] drm/vmwgfx: Updated comment for stdu plane update Date: Wed, 10 Oct 2018 17:16:49 -0700 Message-ID: <20181011001657.1715-10-drawat@vmware.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181011001657.1715-1-drawat@vmware.com> References: <20181011001657.1715-1-drawat@vmware.com> MIME-Version: 1.0 Received-SPF: None (EX13-EDG-OU-001.vmware.com: drawat@vmware.com does not designate permitted sender hosts) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Deepak Rawat Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Update the commet to sync with code. Signed-off-by: Deepak Rawat --- drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c index 64d11af2b81b..1821c4be0ef4 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -1653,7 +1653,6 @@ static int vmw_stdu_plane_update_surface(struct vmw_private *dev_priv, /** * vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane - * * @plane: display plane * @old_state: Only used to get crtc info * @@ -1674,10 +1673,7 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, struct vmw_private *dev_priv; int ret; - /* - * We cannot really fail this function, so if we do, then output an - * error and maintain consistent atomic state. - */ + /* If somehow gets a device error, maintain consistent atomic state */ if (crtc && plane->state->fb) { struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(plane->state->fb); @@ -1706,12 +1702,7 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, stdu = vmw_crtc_to_stdu(crtc); dev_priv = vmw_priv(crtc->dev); - /* - * When disabling a plane, CRTC and FB should always be NULL - * together, otherwise it's an error. - * Here primary plane is being disable so blank the screen - * target display unit, if not already done. - */ + /* Blank STDU when fb and crtc are NULL */ if (!stdu->defined) return; @@ -1726,11 +1717,8 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, return; } + /* In case of error vblank event is sent in vmw_du_crtc_atomic_flush */ event = crtc->state->event; - /* - * In case of failure and other cases, vblank event will be sent in - * vmw_du_crtc_atomic_flush. - */ if (event && fence) { struct drm_file *file_priv = event->base.file_priv;