From patchwork Tue Nov 30 05:39:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?VHJldm9yIFd1ICjlkLPmlofoia8p?= X-Patchwork-Id: 12694087 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 6556DC433F5 for ; Tue, 30 Nov 2021 05:46:45 +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=y4B3mYWxXS1ryspx866+qXiV20IkBOUJzBVfbVhFlRI=; b=lj8GU7gHSC/1e2 gg0ppcirmw87jLFj/MgXK2XQoJNn76xqnq4YAum/fa/szKPPkStVnAXgjI/3KxzewJYXcShIbjblb 4jSh3tTyi2j2xaMADfZyqLhF7LLooEXQB87qSJ00VEfQ+yHRZPST6w5+BW2CQA2IGZUsGO1XIgEuX VLJOqJ6ZOiLAbBL/M/1lb6lYg/2enwHtUyqRv95nlY/Ra23pbmT85QKHUuquWVcrf4a+rsJYan8hT rC57z4BwhDKTqKR4mpiPNS1u6wog+br+KHQ3btGgyEtH0SAZW8fbvn4W8IRHvjhji6ClPOFFQh/7d uULfxjtpjEM3KBnD4mWQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mrvwz-003fUP-65; Tue, 30 Nov 2021 05:45:09 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mrvwu-003fTa-KZ; Tue, 30 Nov 2021 05:45:05 +0000 X-UUID: e65a5e06699e4783a9bd44958c877166-20211129 X-UUID: e65a5e06699e4783a9bd44958c877166-20211129 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 523711638; Mon, 29 Nov 2021 22:45:02 -0700 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 29 Nov 2021 21:39:09 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Tue, 30 Nov 2021 13:39:07 +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; Tue, 30 Nov 2021 13:39:07 +0800 From: Trevor Wu To: , , , CC: , , , , , , Subject: [PATCH 1/2] ASoC: mediatek: mt8195: support reserved memory assignment Date: Tue, 30 Nov 2021 13:39:04 +0800 Message-ID: <20211130053905.28470-2-trevor.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20211130053905.28470-1-trevor.wu@mediatek.com> References: <20211130053905.28470-1-trevor.wu@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-20211129_214504_689829_F937221C X-CRM114-Status: GOOD ( 11.56 ) 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 For security purpose, restrict the memory assess region of AFE memif. The specified memory region should be assigned from DTS. Signed-off-by: Trevor Wu --- sound/soc/mediatek/mt8195/mt8195-afe-pcm.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c index 2bb05a828e8d..8a6db24116e3 100644 --- a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c +++ b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include "mt8195-afe-common.h" #include "mt8195-afe-clk.h" @@ -3061,6 +3062,12 @@ static int mt8195_afe_pcm_dev_probe(struct platform_device *pdev) int i, irq_id, ret; struct snd_soc_component *component; + ret = of_reserved_mem_device_init(dev); + if (ret) { + dev_err(dev, "failed to assign memory region: %d\n", ret); + return ret; + } + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(33)); if (ret) return ret;