From patchwork Sun May 8 17:56:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842562 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 17983C433EF for ; Sun, 8 May 2022 19:12:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230236AbiEHTPu (ORCPT ); Sun, 8 May 2022 15:15:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40324 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243591AbiEHSAv (ORCPT ); Sun, 8 May 2022 14:00:51 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54AC8558C for ; Sun, 8 May 2022 10:57:01 -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 01132B80D48 for ; Sun, 8 May 2022 17:57:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4B8DC385B0; Sun, 8 May 2022 17:56:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032618; bh=JXmoqVboH+j7rmKCPT2n2zCLljhehBcygzmD81MQ3ZU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UcWv6ieN9eQx47ZWQoMkLaAwGlLCS8t7/VyAuO6L7JTCU6HUgMYCbbq8i2OajORpr j10RJqFeQujRQL/TetcMBAJwuLlJnOR7upYBZ3S7qRBQH2NbkU0/rcpZpt5cNzkUWp sfjUiaXa43ho4b8Xil6k/9nWYVbKA6eMYUT4m7Oarsi0s3bxzhqqR3dqnzyk8//YfB wbiFnvjn8QhxPtCaPv0CUf8Av58i9z/7W+uW10GrIduAslyeUaAX6P6xVtCId+AJvr RusTDg3SZ4Bl43FI1EJqDtRTLxwz57QC8fLHa5gQCcHLQnZICDpWVg4ieUkXVg9BYy bqA8+wW7WSgvg== From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Alexandru Lazar , Akinobu Mita , Alexandru Tachici , Antoniu Miclaus , Charles-Antoine Couret , Cosmin Tanislav , David Lechner , Ivan Mikhaylov , Jacopo Mondi , Jean-Baptiste Maneyrol , Lars-Peter Clausen , Marcelo Schmitt , =?utf-8?q?M=C3=A5rten_Lindahl?= , Matt Ranostay , 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 v2 63/92] iio: dac: ti-dac7311: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:43 +0100 Message-Id: <20220508175712.647246-64-jic23@kernel.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220508175712.647246-1-jic23@kernel.org> References: <20220508175712.647246-1-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_DMA_MINALIGN definition. Fixes: 7a02ef7907d8 ("iio:dac:ti-dac7311 Add driver for Texas Instrument DAC7311") Signed-off-by: Jonathan Cameron Cc: Charles-Antoine Couret Acked-by: Nuno Sá --- drivers/iio/dac/ti-dac7311.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ti-dac7311.c b/drivers/iio/dac/ti-dac7311.c index e10d17e60ed3..dd0a7b77838d 100644 --- a/drivers/iio/dac/ti-dac7311.c +++ b/drivers/iio/dac/ti-dac7311.c @@ -52,7 +52,7 @@ struct ti_dac_chip { bool powerdown; u8 powerdown_mode; u8 resolution; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); }; static u8 ti_dac_get_power(struct ti_dac_chip *ti_dac, bool powerdown)