From patchwork Tue May 3 08:59:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12835361 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76E04C433EF for ; Tue, 3 May 2022 09:01:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233135AbiECJFF (ORCPT ); Tue, 3 May 2022 05:05:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230514AbiECJFE (ORCPT ); Tue, 3 May 2022 05:05:04 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B9B8712AAD for ; Tue, 3 May 2022 02:01:32 -0700 (PDT) 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 sin.source.kernel.org (Postfix) with ESMTPS id 24ED4CE1D7C for ; Tue, 3 May 2022 09:01:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7484AC385B0; Tue, 3 May 2022 09:01:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1651568489; bh=WxispHWvlGsxkZ9qEZbGd2XZ74iNBDL72F6E07p6jF0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Xaic3e63np8XbeSmXvEztE40fG31oBoIpOx48WXT24pxSrL4803/+n2NniXSVnnXY ZVWXzOcngJ53cB1HxyhkYqXEm1hFWEY9g2gptCS8GHuEiQPtQJ2w933RMpT9R9nuc7 JvlYqOkCv3y8ZTNLE9hd7YJKm+ZUb4rrZfcsAQBPKT4zx588zwtHgm/IB4/tp/H8gs EDhXa82yVXl3aZbaW3Fz9D3O2CbnWD6nTYxd5nMA29fiDBj/mue0vrMrcUWXA99XLc cql+DL2BS4Vw+rQuO5ilWpwpDGjBEHejC5D+lJcXan/70AKY+zQaWVv2Zx9ErayIV9 NRYaNwuPbfiUg== From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Akinobu Mita , Alexandru Lazar , Alexandru Tachici , Antoniu Miclaus , Charles-Antoine Couret , Cosmin Tanislav , Cristian Pop , David Lechner , Ivan Mikhaylov , Jacopo Mondi , Jean-Baptiste Maneyrol , Lars-Peter Clausen , Marcelo Schmitt , =?utf-8?q?M=C3=A5rten_Lindahl?= , Matt Ranostay , Michael Hennerich , Michael Welling , Mugilraj Dhavachelvan , Navin Sankar Velliangiri , =?utf-8?q?Nuno_S=C3=A1?= , Paul Cercueil , Phil Reid , Puranjay Mohan , Ricardo Ribalda , Robert Jones , Rui Miguel Silva , Sean Nyekjaer , Tomas Melin , Tomislav Denis , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Jonathan Cameron Subject: [PATCH 62/92] iio: dac: ti-dac5571: Fix alignment for DMA safety Date: Tue, 3 May 2022 09:59:05 +0100 Message-Id: <20220503085935.1533814-63-jic23@kernel.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220503085935.1533814-1-jic23@kernel.org> References: <20220503085935.1533814-1-jic23@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Jonathan Cameron ____cacheline_aligned is an insufficient guarantee for non-coherent DMA on platforms with 128 byte cachelines above L1. Switch to the updated IIO_ALIGN definition. Fixes: df38a4a72a3b ("iio: dac: add TI DAC5571 family support") Signed-off-by: Jonathan Cameron Cc: Sean Nyekjaer --- drivers/iio/dac/ti-dac5571.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c index 0b775f943db3..0a13df8101b4 100644 --- a/drivers/iio/dac/ti-dac5571.c +++ b/drivers/iio/dac/ti-dac5571.c @@ -52,7 +52,7 @@ struct dac5571_data { struct dac5571_spec const *spec; int (*dac5571_cmd)(struct dac5571_data *data, int channel, u16 val); int (*dac5571_pwrdwn)(struct dac5571_data *data, int channel, u8 pwrdwn); - u8 buf[3] ____cacheline_aligned; + u8 buf[3] __aligned(IIO_ALIGN); }; #define DAC5571_POWERDOWN(mode) ((mode) + 1)