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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 12E4CC432C0 for ; Mon, 2 Dec 2019 19:34:13 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 CBA8320833 for ; Mon, 2 Dec 2019 19:34:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="CRcIIGe2"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="h7uMpYQX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CBA8320833 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ravnborg.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DSLIusqvm1YFgVOLe/taiMHBcyZJalPfairJt0UDVJ8=; b=CRcIIGe2Kcdd4j DSQ4KhGtHShM1LAkq43LNLM1akyVGd4l42Z8pVzTqVVan79PwFPLmZIRbQUtPsJOHTXwRXWX3A8i0 ACOG4pMJj39EuCd0m8s/iENKFkrSG/GZTfr4EcLDGySRS+TnhvythSSb3Hy3bb6FXKnJieS4niWvO CRpvRQCAxDOfFeMfgUPW7VPU2ZotkP2t9HI6t+uH+55I4A0y0VdUenTH9bUDdfLgFpC1Wlz1L4Aw1 ASg/BIfXASucCW99v06yurqdDiNDdpcgfsLgNHz/jsSSt8nf5d0v0+Is0tI7kwrIf24xBt8jRFhYU xQOCqb/8QwPf/1U58olg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ibrSV-0008EY-VI; Mon, 02 Dec 2019 19:34:11 +0000 Received: from mail-lj1-x242.google.com ([2a00:1450:4864:20::242]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ibrRT-0007JM-7l; Mon, 02 Dec 2019 19:33:09 +0000 Received: by mail-lj1-x242.google.com with SMTP id e10so829215ljj.6; Mon, 02 Dec 2019 11:33:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=LGOgtva2q0s1MxBZFBlNQnZLc92S/tb/mTErWAKqBVc=; b=h7uMpYQXU8nqH68TzydRnhCOy45ksFGq28L6tPaxa9aEiPfo5jSOpVakkWN+0K9IK7 1qclRlZSneydfgb76u5Ne20nNLk1wsQj7Cj3Z64NUtI+I5OintjAleMXZo4ugNCWp8cR TIJ2NPk5BEhgyBCMlG9HktzmqwwZDSKf95YjiSNXJqGur69kbxDYG6cpihUCHnCAnA9c FwdPExbDCZ0VRivGRZ3sHk6QYNEYi4Xtmw7nn9Oqqkg5edr6javNtcxYL2hagI7YMyrp K4DxbC0F1zZ4WICEWZPbLWQ4xrh18gufaVK0s5f6vAXNDlFps/DBo/4ma1VXmzNRXKkX YoYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=LGOgtva2q0s1MxBZFBlNQnZLc92S/tb/mTErWAKqBVc=; b=nNyT46MtBnmZAk0yw5hfxCCDObLfBfBMnG4uxun0f/Bxc266uU0l7azeytn1MntNsT H7rZVo6q0VxDP0o/jy7a2V7FtEXf3trbm90lxyr+Pg3iSzFCQGgzrsRY4yChQkMksdvR XwM5a96AiaftEk8BD8NF97pyY2f9niFJrAm/KlXVkLSEWo61tVnEuc8bQSfM7gpxU8f+ ZGcHFwhoZHkC/1Ixu8mHek/C2yYlASVI58uZ36x9lL+jWZjH2ZdX8/zB39pni+YvEfaS MyQ0gdxcF3xD3vXNNDYI7Ary0ITz7X2vaIPDzHKguouNSnr8wWRDCxeWZG2/JVYLfauZ oKEQ== X-Gm-Message-State: APjAAAUhAdYcEkPgL7fDSIaILxEYwvCwIZWB6GQotp/j6NUpB6M8+G+S DLZT7lvOv3eXB7VhWwTiTy0= X-Google-Smtp-Source: APXvYqxqWDVM+ppo9LUJvIL0zSPxHW/xwhiU6h6G2FvCLak5I1Hn77t5p5FArs7DmDjbO05gcgebKA== X-Received: by 2002:a2e:9ac4:: with SMTP id p4mr219541ljj.207.1575315185572; Mon, 02 Dec 2019 11:33:05 -0800 (PST) Received: from saturn.lan (18.158-248-194.customer.lyse.net. [158.248.194.18]) by smtp.gmail.com with ESMTPSA id g13sm79482lfb.74.2019.12.02.11.33.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2019 11:33:04 -0800 (PST) From: Sam Ravnborg To: dri-devel@lists.freedesktop.org, Thierry Reding , Laurent Pinchart Subject: [PATCH v1 01/26] drm/drm_panel: no error when no callback Date: Mon, 2 Dec 2019 20:32:05 +0100 Message-Id: <20191202193230.21310-2-sam@ravnborg.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191202193230.21310-1-sam@ravnborg.org> References: <20191202193230.21310-1-sam@ravnborg.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191202_113307_485762_499ADD05 X-CRM114-Status: UNSURE ( 9.86 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Neil Armstrong , David Airlie , Linus Walleij , Stefan Agner , Andrzej Hajda , Benjamin Gaignard , Sam Ravnborg , linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Tomi Valkeinen , Jagan Teki , NXP Linux Team , Jitao Shi , Pengutronix Kernel Team , Maarten Lankhorst , Maxime Ripard , linux-mediatek@lists.infradead.org, Abhinav Kumar , linux-tegra@vger.kernel.org, Sean Paul , linux-arm-kernel@lists.infradead.org, Purism Kernel Team , linux-renesas-soc@vger.kernel.org, Boris Brezillon , Daniel Vetter Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org The callbacks in drm_panel_funcs are optional, so do not return an error just because no callback is assigned. Signed-off-by: Sam Ravnborg Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Thierry Reding Cc: Sam Ravnborg Cc: David Airlie Cc: Daniel Vetter --- drivers/gpu/drm/drm_panel.c | 35 +++++++++++++++++++++++++---------- 1 file changed, 25 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index ed7985c0535a..2d59cdd05e50 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -151,10 +151,13 @@ EXPORT_SYMBOL(drm_panel_detach); */ int drm_panel_prepare(struct drm_panel *panel) { - if (panel && panel->funcs && panel->funcs->prepare) + if (!panel) + return -EINVAL; + + if (panel->funcs && panel->funcs->prepare) return panel->funcs->prepare(panel); - return panel ? -ENOSYS : -EINVAL; + return 0; } EXPORT_SYMBOL(drm_panel_prepare); @@ -171,10 +174,13 @@ EXPORT_SYMBOL(drm_panel_prepare); */ int drm_panel_unprepare(struct drm_panel *panel) { - if (panel && panel->funcs && panel->funcs->unprepare) + if (!panel) + return -EINVAL; + + if (panel->funcs && panel->funcs->unprepare) return panel->funcs->unprepare(panel); - return panel ? -ENOSYS : -EINVAL; + return 0; } EXPORT_SYMBOL(drm_panel_unprepare); @@ -190,10 +196,13 @@ EXPORT_SYMBOL(drm_panel_unprepare); */ int drm_panel_enable(struct drm_panel *panel) { - if (panel && panel->funcs && panel->funcs->enable) + if (!panel) + return -EINVAL; + + if (panel->funcs && panel->funcs->enable) return panel->funcs->enable(panel); - return panel ? -ENOSYS : -EINVAL; + return 0; } EXPORT_SYMBOL(drm_panel_enable); @@ -209,10 +218,13 @@ EXPORT_SYMBOL(drm_panel_enable); */ int drm_panel_disable(struct drm_panel *panel) { - if (panel && panel->funcs && panel->funcs->disable) + if (!panel) + return -EINVAL; + + if (panel->funcs && panel->funcs->disable) return panel->funcs->disable(panel); - return panel ? -ENOSYS : -EINVAL; + return 0; } EXPORT_SYMBOL(drm_panel_disable); @@ -228,10 +240,13 @@ EXPORT_SYMBOL(drm_panel_disable); */ int drm_panel_get_modes(struct drm_panel *panel) { - if (panel && panel->funcs && panel->funcs->get_modes) + if (!panel) + return -EINVAL; + + if (panel->funcs && panel->funcs->get_modes) return panel->funcs->get_modes(panel); - return panel ? -ENOSYS : -EINVAL; + return 0; } EXPORT_SYMBOL(drm_panel_get_modes); -- 2.20.1 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek