From patchwork Tue Dec 10 16:55:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Cercueil X-Patchwork-Id: 11283011 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 740B9109A for ; Tue, 10 Dec 2019 16:55:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 51E1A2073D for ; Tue, 10 Dec 2019 16:55:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=crapouillou.net header.i=@crapouillou.net header.b="cVx/lvVL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727628AbfLJQzw (ORCPT ); Tue, 10 Dec 2019 11:55:52 -0500 Received: from outils.crapouillou.net ([89.234.176.41]:42170 "EHLO crapouillou.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727559AbfLJQzw (ORCPT ); Tue, 10 Dec 2019 11:55:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=crapouillou.net; s=mail; t=1575996950; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:references; bh=dBLD8wu+LU+fa0Q8NCkOMXq4149Z7QPNmkNtchW0JrE=; b=cVx/lvVL88OudDGRMlmEqxNRjjwkI0QxMqiqidefEYCtmYSv0K67iAX/ZM1owgizU5ovBF TIrTE//zYIPdHU0+8IqqSxSoGevHvHipriqTFSaBqLDj5gGuMlLSudog+T0rZGSgKF7b0I sUXQUG6Fit/wpLubrYmfkusJ0XhpNJU= From: Paul Cercueil To: Vinod Koul Cc: od@zcrc.me, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, Paul Cercueil , stable@vger.kernel.org Subject: [PATCH] dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B Date: Tue, 10 Dec 2019 17:55:45 +0100 Message-Id: <20191210165545.59690-1-paul@crapouillou.net> MIME-Version: 1.0 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org It turns out that the JZ4725B displays the same buggy behaviour as the JZ4740 that was described in commit f4c255f1a747 ("dmaengine: dma-jz4780: Break descriptor chains on JZ4740"). Work around it by using the same workaround previously used for the JZ4740. Fixes commit f4c255f1a747 ("dmaengine: dma-jz4780: Break descriptor chains on JZ4740") Cc: Signed-off-by: Paul Cercueil --- drivers/dma/dma-jz4780.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c index fa626acdc9b9..44af435628f8 100644 --- a/drivers/dma/dma-jz4780.c +++ b/drivers/dma/dma-jz4780.c @@ -999,7 +999,8 @@ static const struct jz4780_dma_soc_data jz4740_dma_soc_data = { static const struct jz4780_dma_soc_data jz4725b_dma_soc_data = { .nb_channels = 6, .transfer_ord_max = 5, - .flags = JZ_SOC_DATA_PER_CHAN_PM | JZ_SOC_DATA_NO_DCKES_DCKEC, + .flags = JZ_SOC_DATA_PER_CHAN_PM | JZ_SOC_DATA_NO_DCKES_DCKEC | + JZ_SOC_DATA_BREAK_LINKS, }; static const struct jz4780_dma_soc_data jz4770_dma_soc_data = {