From patchwork Sun May 8 17:56:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12842575 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 5E3AAC433F5 for ; Sun, 8 May 2022 19:12:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229691AbiEHTQe (ORCPT ); Sun, 8 May 2022 15:16:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239182AbiEHR4v (ORCPT ); Sun, 8 May 2022 13:56:51 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ACA02DFEA for ; Sun, 8 May 2022 10:53:00 -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 55E77B80E3D for ; Sun, 8 May 2022 17:52:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 96236C385B0; Sun, 8 May 2022 17:52:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652032378; bh=G6FNGZZK1XvXUt1IaRwjrDFHlAfQxVwB+n+EIraKt/c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jGoBuNO51PI7fY12+dmvWFDREy5Fh0ASI5y1HBejigkOHNV6D2aJnBsoV8ZQQKqDY XlorjeBivzg9rH8I5RBTzbXxC/esCn4WILZmAooq11fcixqJCe0F+lY0d5dwch7ArU YYU8rsDmSJJOXhrU4ekuROILsdlvVOoGYa6WOajdMjBrL5MF64gGq6k9E3508pCRFo MlWzgBWhQ2FszEyXFu5MzId+dVt91aUPZeEyO4LjCT0871Irc6fsnvUzkj4e/V7Txy HYILd27e6wwUQFHZtrsuo3CHsCAKkgD22iJtq3pGHfIH6xI8wTKT30TkwVmCgzYlCh F164FCBpeC5qA== 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 31/92] iio: adc: ti-adc12138: Fix alignment for DMA safety Date: Sun, 8 May 2022 18:56:11 +0100 Message-Id: <20220508175712.647246-32-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: 50a6edb1b6e0 ("iio: adc: add ADC12130/ADC12132/ADC12138 ADC driver") Signed-off-by: Jonathan Cameron Cc: Akinobu Mita Acked-by: Nuno Sá --- drivers/iio/adc/ti-adc12138.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ti-adc12138.c b/drivers/iio/adc/ti-adc12138.c index 59d75d09604f..c0a72d72f3a9 100644 --- a/drivers/iio/adc/ti-adc12138.c +++ b/drivers/iio/adc/ti-adc12138.c @@ -55,7 +55,7 @@ struct adc12138 { */ __be16 data[20] __aligned(8); - u8 tx_buf[2] ____cacheline_aligned; + u8 tx_buf[2] __aligned(IIO_DMA_MINALIGN); u8 rx_buf[2]; };