From patchwork Fri Apr 17 17:09:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thierry Reding X-Patchwork-Id: 1272334 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=S35aXFZt; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 493jHk57H3z9sSM for ; Sat, 18 Apr 2020 03:09:22 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728189AbgDQRJT (ORCPT ); Fri, 17 Apr 2020 13:09:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727986AbgDQRJS (ORCPT ); Fri, 17 Apr 2020 13:09:18 -0400 Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 52C8DC061A0C; Fri, 17 Apr 2020 10:09:17 -0700 (PDT) Received: by mail-wr1-x441.google.com with SMTP id g13so1864558wrb.8; Fri, 17 Apr 2020 10:09:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=57+jtCNNE2Zl02cp6sMoaQUmuTPWgMNTCWO5br3qpgY=; b=S35aXFZt9eRVEiuuf2RwYaI1eNkNoCtN91BA32YPyKFah3rLN5ED2sfULvCwfmJy2V UMmCLXHfqqW4SOFGSDdEiC13FM/MngyXb3hfZcj2GdTIh3CkUztCvJYdjUSSPg2eUBhO H3eldj4lDcJFwVcaxVSUrD7xlb3bdQppIch3xPMu/QyJ4Z+2H2WwYO2kMQ9SEYU8uiy3 c5I0FvRL/2BH1gmtyfQeD397IWRKvc6rKHAL6RGDga1WkGsUOJwJC4GsiwCjZ241H09y zC8Pjce289P5u0M9y9QAKPwPJr2tELKPI9DQfsIG/owniy+lgj6gRsqdVhDmYSA+IwgV jarg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=57+jtCNNE2Zl02cp6sMoaQUmuTPWgMNTCWO5br3qpgY=; b=GpBta5GpovBYDUODrZWk3WNcFAHilute7Gu7ZdKmm+rNkpSHAsYUF5splWrQpiCusM JrAJO0cxFTWI9wl/lf4qEfYmbcg7nP2fAZCPD5+GXAbRxmqUesMUaONeWMQ43ZVPQyDF AYURvYSILFDseTDFNLuTkGu1S1siOh5PeNk3je4QGKMxZG8CU4EVq2fixwUEf0Ymkzq2 bQc6Ec1X3S6khRaFssRZdOLxoS8HllmdBjSbfcCzTH9vhKO2G206nMgTNWCtBkVRJuLh LVl0mYks4IKq1YqJLIbEBumn4FV8B/KaMj2SsXLVjLxkBnU7mReiplx0RA0DYnieb0Nr Ihbw== X-Gm-Message-State: AGi0Pub4zDzZsc+bdAJq5Rja1WtH9xYF1RSAAroU8Gd9KU7cyMq0wyv6 h2LbD7+1BxiDphGr88mKIgU= X-Google-Smtp-Source: APiQypKFvh513XCTlwTK5AFfQS5m6Z2hLgSWcDw5MCE36/8oXLA9wV6bh7jo/NLzoAjEUxbBcp9qDQ== X-Received: by 2002:adf:f450:: with SMTP id f16mr4952639wrp.346.1587143356035; Fri, 17 Apr 2020 10:09:16 -0700 (PDT) Received: from localhost (pD9E51D62.dip0.t-ipconnect.de. [217.229.29.98]) by smtp.gmail.com with ESMTPSA id f8sm10082727wrm.14.2020.04.17.10.09.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Apr 2020 10:09:14 -0700 (PDT) From: Thierry Reding To: Lee Jones Cc: Jon Hunter , linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] mfd: max77620: Use single-byte writes on MAX77620 Date: Fri, 17 Apr 2020 19:09:13 +0200 Message-Id: <20200417170913.2552327-1-thierry.reding@gmail.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org From: Thierry Reding The MAX77620 doesn't support bulk writes, so make sure the regmap code breaks bulk writes into multiple single-byte writes. Note that this is mostly cosmetic because currently only the RTC sub- driver uses bulk writes and the RTC driver ends up using a different regmap on the MAX77620 anyway. However, it seems like a good idea to make this change now in order to avoid running into issues if bulk writes are ever used by other sub-drivers sometime down the road. Signed-off-by: Thierry Reding Acked-by: Jon Hunter Tested-by: Jon Hunter --- drivers/mfd/max77620.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/max77620.c b/drivers/mfd/max77620.c index c7ed5c353553..fec2096474ad 100644 --- a/drivers/mfd/max77620.c +++ b/drivers/mfd/max77620.c @@ -177,6 +177,7 @@ static const struct regmap_config max77620_regmap_config = { .rd_table = &max77620_readable_table, .wr_table = &max77620_writable_table, .volatile_table = &max77620_volatile_table, + .use_single_write = true, }; static const struct regmap_config max20024_regmap_config = {