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 Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 875F7C433EF for ; Wed, 9 Mar 2022 19:46:54 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 3A9FF83937; Wed, 9 Mar 2022 20:46:52 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="GNJCU9/N"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 01EAF839AA; Wed, 9 Mar 2022 20:46:50 +0100 (CET) Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 7CA33839A4 for ; Wed, 9 Mar 2022 20:46:46 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=pali@kernel.org Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 2A27CB82370; Wed, 9 Mar 2022 19:46:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5388DC340F6; Wed, 9 Mar 2022 19:46:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1646855190; bh=OOwMcnpj2ycV0+/wdixK0Vg+JZ4Cgq47xN/33cFHIQY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GNJCU9/NBC6TOECUD2shBuhm1IQfjWEfM/gl2ziSy2QcyK87rJ6/WCVAxLLAblvaW ctienow8nkV93G2OYGuoBJPIoqjqRtyFMvFJtbbPegnWrY+8I66WxWwmWxUQKeKAMi hDjdIqwe+neG/OCM5FE+LkPYvl76NoypM8PJbNjiwkjrPw5ifDnGgIKEUGMhHmMnfS ZsXvtKvhTt8oIk8pZiNFkgVgUuyjEQWJHbF0oT1BZXNpi1sG3e5pjLwRRLk5Hk8MRm aH/dpZ/cLDRmYhoFuQ5Qd5hkKpEvvhq4/ZzkBcpdg5lI3f9BocktPiteF1NAB3TaBf 2QS8tzga/c9xA== Received: by pali.im (Postfix) id D876F2191; Wed, 9 Mar 2022 20:46:27 +0100 (CET) From: =?UTF-8?q?Pali=20Roh=C3=A1r?= To: Simon Glass , Anatolij Gustschin , Tom Rini Cc: u-boot@lists.denx.de, maemo-leste@lists.dyne.org Subject: [PATCH v2 1/2] video: Allow drivers to allocate the frame buffer themselves Date: Wed, 9 Mar 2022 20:46:00 +0100 Message-Id: <20220309194601.29238-1-pali@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220216204219.18539-1-pali@kernel.org> References: <20220216204219.18539-1-pali@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean When plat->base is set by driver then skip frame buffer reservation and allocation. Signed-off-by: Pali Rohár --- drivers/video/video-uclass.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c index 7d499bcec51d..88797d4a21c2 100644 --- a/drivers/video/video-uclass.c +++ b/drivers/video/video-uclass.c @@ -33,7 +33,8 @@ * information represents the requires size and alignment of the frame buffer * for the device. The values can be an over-estimate but cannot be too * small. The actual values will be suppled (in the same manner) by the bind() - * method after relocation. + * method after relocation. Additionally driver can allocate frame buffer + * itself by setting plat->base. * * This information is then picked up by video_reserve() which works out how * much memory is needed for all devices. This is allocated between @@ -78,6 +79,10 @@ static ulong alloc_fb(struct udevice *dev, ulong *addrp) if (!plat->size) return 0; + /* Allow drivers to allocate the frame buffer themselves */ + if (plat->base) + return 0; + align = plat->align ? plat->align : 1 << 20; base = *addrp - plat->size; base &= ~(align - 1); -- 2.20.1