From patchwork Sun May 8 17:56:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842621 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 73B37C433FE for ; Sun, 8 May 2022 19:14:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229728AbiEHTSn (ORCPT ); Sun, 8 May 2022 15:18:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39026 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239193AbiEHR45 (ORCPT ); Sun, 8 May 2022 13:56:57 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B256EDFEA for ; Sun, 8 May 2022 10:53:06 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 4E79A6129B for ; Sun, 8 May 2022 17:53:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79E7DC385AC; Sun, 8 May 2022 17:52:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032385; bh=OtuabUfQT2gulvi4+PXcapW6supdtHDmXVAbnsYWwd8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IA5bgoNtMwEhKvj66JDB+6YlX2JqTTMTti1Bf72PeluGwPaT/u7rt6btKp9mYOWgb o4/9u3+Wfqt77ZuSJW0N81ED5P31GJBX4yCMbq9H+ztmxTp6EGGOYjWMy142GmWuZE bq+J1jpRd+8ByZ0i02hYPef9qkMLY+0WKLSeDttc2LutME/9UOUNPKtbeuwBfbWknO BCELoYQRZaZrc8s04VAhUc1aF2UtVHubbeCVzAnFS4sVZQUy6mnb5z/XvkPlPd/vMe st2cfjsckNV3kDUgR+PudPwgV1lMmPucf9Ar0ZbT9NqxBnNR9a+80t+U7JS1LTLIqF Gf+y8FPp7jFnw== 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 32/92] iio: adc: ti-adc128s052: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:12 +0100 Message-Id: <20220508175712.647246-33-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: 913b86468674 ("iio: adc: Add TI ADC128S052") Signed-off-by: Jonathan Cameron Acked-by: Nuno Sá --- drivers/iio/adc/ti-adc128s052.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c index 8e7adec87755..622fd384983c 100644 --- a/drivers/iio/adc/ti-adc128s052.c +++ b/drivers/iio/adc/ti-adc128s052.c @@ -29,7 +29,7 @@ struct adc128 { struct regulator *reg; struct mutex lock; - u8 buffer[2] ____cacheline_aligned; + u8 buffer[2] __aligned(IIO_DMA_MINALIGN); }; static int adc128_adc_conversion(struct adc128 *adc, u8 channel)