From patchwork Sat Apr 16 02:07:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?TmFuY3kgTGluICjmnpfmrKPonqIp?= X-Patchwork-Id: 12815549 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 8D385C433EF for ; Sat, 16 Apr 2022 02:09:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ue54xr8YMxySv0ntwE/MJADqmO+0XdS649UWI5yRzDo=; b=U9AD8GOhjO9HE8 O2Ktp1RYEmPsCeatdDEzsWNOjHrLZWtgEgYDL8EOCw1xqPCQTCb1orAHXRra6Jf5r1dEi7TYJyvkj 6ZzFmFVaDzJ1Z6HgG4bWN5jb8XNW3E4dLOyAguU+GhAcotOz9QclCbquuYfM4HSsns0G2k/03d7Ju BB1tfj1Fz5EdF4dWi5DTakZa6CgpbvVWRa9HVqy6S3PDXAWCq9aOTq73Tm3/i47T5cJAlDRMHExCP /OR5BYbebiTIuVOGVGv7lKVzPG5RD0EwnF8f8uUbOQQVWxa8pQMYOllivxhOL+HNxmGaDd/Rz0v52 stYlAMIyMgp8zyVl72HQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nfXr8-00BwMg-R5; Sat, 16 Apr 2022 02:08:10 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nfXr3-00BwJp-9R; Sat, 16 Apr 2022 02:08:08 +0000 X-UUID: 8a54f0056dd546d086759b52631094b9-20220415 X-UUID: 8a54f0056dd546d086759b52631094b9-20220415 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1265483140; Fri, 15 Apr 2022 19:07:58 -0700 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 15 Apr 2022 19:07:56 -0700 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 16 Apr 2022 10:07:55 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 16 Apr 2022 10:07:55 +0800 From: Nancy.Lin To: Rob Herring , Matthias Brugger , Chun-Kuang Hu , "Philipp Zabel" , , "AngeloGioacchino Del Regno" , CC: David Airlie , Daniel Vetter , "Nathan Chancellor" , Nick Desaulniers , "Nancy . Lin" , "jason-jh . lin" , Yongqiang Niu , , , , , , , , , Subject: [PATCH v17 13/21] drm/mediatek: add display merge async reset control Date: Sat, 16 Apr 2022 10:07:41 +0800 Message-ID: <20220416020749.29010-14-nancy.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220416020749.29010-1-nancy.lin@mediatek.com> References: <20220416020749.29010-1-nancy.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220415_190805_395493_1F8F04D5 X-CRM114-Status: GOOD ( 10.92 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add merge async reset control in mtk_merge_stop. Async hw doesn't do self reset on each sof signal(start of frame), so need to reset the async to clear the hw status for the next merge start. Signed-off-by: Nancy.Lin Reviewed-by: CK Hu Reviewed-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_disp_merge.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_merge.c b/drivers/gpu/drm/mediatek/mtk_disp_merge.c index 9dca145cfb71..177473fa8160 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_merge.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_merge.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include "mtk_drm_ddp_comp.h" @@ -79,6 +80,9 @@ void mtk_merge_stop(struct device *dev) struct mtk_disp_merge *priv = dev_get_drvdata(dev); mtk_merge_stop_cmdq(dev, NULL); + + if (priv->async_clk) + device_reset_optional(dev); } void mtk_merge_start_cmdq(struct device *dev, struct cmdq_pkt *cmdq_pkt)