From patchwork Tue May 3 08:58:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12835347 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 7B06AC433F5 for ; Tue, 3 May 2022 08:59:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233114AbiECJCz (ORCPT ); Tue, 3 May 2022 05:02:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39958 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232391AbiECJCy (ORCPT ); Tue, 3 May 2022 05:02:54 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E3E236154 for ; Tue, 3 May 2022 01:59:23 -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 ams.source.kernel.org (Postfix) with ESMTPS id B7729B81BE9 for ; Tue, 3 May 2022 08:59:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6F6FC385B1; Tue, 3 May 2022 08:59:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1651568360; bh=SCl8qiZgpXu2sclEMxUyO86lmCyIhM5qoVm0Q2Mzlxo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ARyHeE/J/+TpGQ50SIvOOKy2Yk1FuNQiTsZSjBYZ3zbqwmHuegieluxHOPsMH6qwl e7We4OAzRMy2MUmBSdEVnWcIZbpieUAkZm1o7lYGGQMjho57wxQWEmxTM+vteVYTqy 6PSB+pvlsgG6UTjaKJSRI2Eq1DTxoeD6l0lZYxuo/8BN3p3nzIdgQU254BunDmTOmU N59LqnXadjwbblxlxHSrrX2c2bLtwRj7YOXvl2cuBBK6vJXZ8vU/68H7msfq0NQvW5 E/JE19XdS7lFSI9xn1+YiayJ0QvhF2IHeSPOP1p5/bGTgKZAajMIf1rea5PRGLcA2I euSZgkd4kCL3A== 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 48/92] iio: dac: ad5592r: Fix alignment for DMA safety Date: Tue, 3 May 2022 09:58:51 +0100 Message-Id: <20220503085935.1533814-49-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: 56ca9db862bf ("iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs") Signed-off-by: Jonathan Cameron Cc: Paul Cercueil --- drivers/iio/dac/ad5592r-base.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad5592r-base.h b/drivers/iio/dac/ad5592r-base.h index 2a22ef691996..072563c4529b 100644 --- a/drivers/iio/dac/ad5592r-base.h +++ b/drivers/iio/dac/ad5592r-base.h @@ -14,6 +14,8 @@ #include #include +#include + struct device; struct ad5592r_state; @@ -65,7 +67,7 @@ struct ad5592r_state { u8 gpio_in; u8 gpio_val; - __be16 spi_msg ____cacheline_aligned; + __be16 spi_msg __aligned(IIO_ALIGN); __be16 spi_msg_nop; };