From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5C9DEC4167E for ; Sun, 26 Sep 2021 09:59:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3DD04610F7 for ; Sun, 26 Sep 2021 09:59:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230484AbhIZKBc (ORCPT ); Sun, 26 Sep 2021 06:01:32 -0400 Received: from new2-smtp.messagingengine.com ([66.111.4.224]:58061 "EHLO new2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230085AbhIZKB2 (ORCPT ); Sun, 26 Sep 2021 06:01:28 -0400 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailnew.nyi.internal (Postfix) with ESMTP id 962BB580FCE; Sun, 26 Sep 2021 05:59:52 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Sun, 26 Sep 2021 05:59:52 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=eD+NxnkyU+/hP i/UKgsnf10rLOiXfMOCvTD3jf1t0H0=; b=BbJWmL9rIELiwqAwkx6ZdyYYfQ/yc gbZPgM6U8kt3QtDCO9OTwmAUoIwiPAk96YQ8fQ+ZIOi8uVmFs3W/D71ZZriQNx1r cXocC+U5BX4YoQUTLL/ctglzTQQmr5hQgKqPVdjq6lxYMBDhULMZ3x5hyCzZxJFm FGlE5Jovf2dqAaFpm+y6PwN7vcxIZ0MtVTVWrT3vmngvY2aYXafr7vmhD75iQ2uQ dg0CEpX5XWwneyPMralb7AhVnwERjkLW3JNhCfeU1WM4PFPTynYE6xdldhvp8Kuv CRnCNuL78vrbvUi+ESBD+FFUmjccbdF0ToCUcPiVh9pxvz9wFJ4PDa7fQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm3; bh=eD+NxnkyU+/hPi/UKgsnf10rLOiXfMOCvTD3jf1t0H0=; b=tlJ4Jm/6 XztkdtKC5bTdpdVe+6urPNE09FbmC+da3/py9U7aW7aYIT5v+zwc8izm6wYIk2aJ YuX78NBhoTc3cKCFU6s1D13/y5O+ssgUO+fLz6UAbQDMOfXvNwULRbhTSJHME4lE aXzmWfsqXFJVi9721iWz2a35yQZZap53anvFUhfuA+5o2p0vEvkZMtBZ2Ge7yqu3 OgHLjldgUiyL6qFLeAdpkTIeRD7zZEp5N5B+WQ0MJFCyzAIddf9rpqPERHQ/iIXv Bu7tb5Ecf3+blBfhoYy8y6cDJRq33Xk9SofZbOlSo4FyNI7CeB8lmOxRU3NhFOnQ QMQkCiMKIY1Tog== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrudejiedgvddvucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpefuvhgvnhcu rfgvthgvrhcuoehsvhgvnhesshhvvghnphgvthgvrhdruggvvheqnecuggftrfgrthhtvg hrnheptedvkeetleeuffffhfekteetffeggffgveehieelueefvddtueffveevlefhfeej necuvehluhhsthgvrhfuihiivgepudenucfrrghrrghmpehmrghilhhfrhhomhepshhvvg hnsehsvhgvnhhpvghtvghrrdguvghv X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sun, 26 Sep 2021 05:59:50 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson Cc: Sven Peter , Arnd Bergmann , Hector Martin , Mohamed Mediouni , Stan Skowronek , Mark Kettenis , Alyssa Rosenzweig , linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 06/10] i2c: pasemi: Move common reset code to own function Date: Sun, 26 Sep 2021 11:58:43 +0200 Message-Id: <20210926095847.38261-7-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20210926095847.38261-1-sven@svenpeter.dev> References: <20210926095847.38261-1-sven@svenpeter.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Split out common reset call to its own function so that we can later add support for selecting the clock frequency and an additional enable bit found in newer revisions. Signed-off-by: Sven Peter --- drivers/i2c/busses/i2c-pasemi-core.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-pasemi-core.c b/drivers/i2c/busses/i2c-pasemi-core.c index 3eda5e375fa2..7c6715f5dbb8 100644 --- a/drivers/i2c/busses/i2c-pasemi-core.c +++ b/drivers/i2c/busses/i2c-pasemi-core.c @@ -61,6 +61,12 @@ static inline int reg_read(struct pasemi_smbus *smbus, int reg) #define TXFIFO_WR(smbus, reg) reg_write((smbus), REG_MTXFIFO, (reg)) #define RXFIFO_RD(smbus) reg_read((smbus), REG_MRXFIFO) +static void pasemi_reset(struct pasemi_smbus *smbus) +{ + reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | + (CLK_100K_DIV & CTL_CLK_M))); +} + static void pasemi_smb_clear(struct pasemi_smbus *smbus) { unsigned int status; @@ -135,8 +141,7 @@ static int pasemi_i2c_xfer_msg(struct i2c_adapter *adapter, return 0; reset_out: - reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | - (CLK_100K_DIV & CTL_CLK_M))); + pasemi_reset(smbus); return err; } @@ -302,8 +307,7 @@ static int pasemi_smb_xfer(struct i2c_adapter *adapter, return 0; reset_out: - reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | - (CLK_100K_DIV & CTL_CLK_M))); + pasemi_reset(smbus); return err; } @@ -335,8 +339,7 @@ int pasemi_i2c_common_probe(struct pasemi_smbus *smbus) /* set up the sysfs linkage to our parent device */ smbus->adapter.dev.parent = smbus->dev; - reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | - (CLK_100K_DIV & CTL_CLK_M))); + pasemi_reset(smbus); error = i2c_add_adapter(&smbus->adapter); if (error) -- 2.25.1