From patchwork Thu Feb 13 14:07:15 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13973365 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BC51BC021A0 for ; Thu, 13 Feb 2025 14:34:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=AbQlCChsa/iUeZzEUWyVX76UMM7DA8g+S1BfYCxtxlQ=; b=g4L14tsmpcpf4nzL2sUqamzfRX tG5/qNWcOteU+BuK9R+YcXFPFp3qlah0pM4UtrH4pq6LomnZDYxgKIRPVqiMNCAJfmRd9wHz5Zmo1 FqGm21tkzYRzfqHPCXc2+ED+/P2Omyxg4kYiURkYf9F75xnWWV7rC6opX3qKOp+Vrn16j4XVMe1a4 eyyXE4ABpsUUVLeH2vya530swn7deZkbYkcoSrgbWuvGGC1HKUjxKA+sXqxgXK4nnh0tj3SYZeEbQ beQMCY7Jxui8k1uLS+W/CfXBwHWKXwNLRA3FHEPfAnbybq/G3QXfYtpa2K7XRM/ZdRsfLnH/biy+J YHfsFCfA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tiaIP-0000000BLBh-29uh; Thu, 13 Feb 2025 14:34:29 +0000 Received: from mgamail.intel.com ([198.175.65.18]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tiZvd-0000000BGnm-2Qge; Thu, 13 Feb 2025 14:10:58 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1739455858; x=1770991858; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Yp4FrWXW4JaF+mT3WDe29SXBFmsQXNetyMj2cbrB3Lc=; b=dtkbSTu9oG4FZeUbatLOcC4mG8BtrpsXyjAj1Rkx5wcQZzSBNzeO5gjh b0zIPYPc04tmmeDkzZf8qizTzVncqX1v2AAL0is2gx2kUGJ2BQbywhRbp 2ZsMPQ0jRdFCvG3AYEUvuh6ZuqHUgYpjLHLJ9pbAf5zvWXGtlOnqh57XE NthvQCn7YbC8NQsFV0V7GYtJhr8OI+Ep9YRf78pcc7DPIbBklG1rZGm4B sB/1uuC698Ldw9xxAMhMKJkLeLbGDlAHlQlFrWnZoEBNgCrfRdKgiS3O2 kFzUqOIRoeN9EbJ9jcb79A0MH9Je+zgh/h4mU/rxTc2d2pgMTqUZmk8Wy Q==; X-CSE-ConnectionGUID: +mWzjQViQ+q5kov2xLW+qw== X-CSE-MsgGUID: G/OWEewiTEOZbRRyU2RWOw== X-IronPort-AV: E=McAfee;i="6700,10204,11314"; a="40273364" X-IronPort-AV: E=Sophos;i="6.12,310,1728975600"; d="scan'208";a="40273364" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Feb 2025 06:10:55 -0800 X-CSE-ConnectionGUID: N12ApcrZTLmSWu4H86qDJw== X-CSE-MsgGUID: 59+8kRuIQtSBaiDwgv5slQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,282,1732608000"; d="scan'208";a="113815328" Received: from black.fi.intel.com ([10.237.72.28]) by fmviesa009.fm.intel.com with ESMTP; 13 Feb 2025 06:10:48 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 31DD11F5; Thu, 13 Feb 2025 16:10:47 +0200 (EET) From: Andy Shevchenko To: Andy Shevchenko , Andi Shyti , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org Cc: Krzysztof Adamski , Florian Fainelli , Ray Jui , Scott Branden , Broadcom internal kernel review list , Kamal Dasu , Stefan Roese , Matthias Brugger , AngeloGioacchino Del Regno , Gregory CLEMENT , Fabrizio Castro Subject: [PATCH v2 01/10] i2c: Introduce i2c_10bit_addr_*_from_msg() helpers Date: Thu, 13 Feb 2025 16:07:15 +0200 Message-ID: <20250213141045.2716943-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.45.1.3035.g276e886db78b In-Reply-To: <20250213141045.2716943-1-andriy.shevchenko@linux.intel.com> References: <20250213141045.2716943-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250213_061057_687752_FDDD664F X-CRM114-Status: UNSURE ( 9.20 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org There are already a lot of drivers that have been using i2c_8bit_addr_from_msg() for 7-bit addresses, now it's time to have the similar for 10-bit addresses. Signed-off-by: Andy Shevchenko Reviewed-by: AngeloGioacchino Del Regno --- include/linux/i2c.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 997e80649889..e23b373b6b57 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -952,6 +952,20 @@ static inline u8 i2c_8bit_addr_from_msg(const struct i2c_msg *msg) return (msg->addr << 1) | (msg->flags & I2C_M_RD); } +/* + * 10-bit address + * addr_1: 5'b11110 | addr[9:8] | (R/nW) + * addr_2: addr[7:0] + */ +static inline u8 i2c_10bit_addr_hi_from_msg(const struct i2c_msg *msg) +{ + return 0xf0 | ((msg->addr & GENMASK(9, 8)) >> 7) | (msg->flags & I2C_M_RD); +} +static inline u8 i2c_10bit_addr_lo_from_msg(const struct i2c_msg *msg) +{ + return msg->addr & GENMASK(7, 0); +} + u8 *i2c_get_dma_safe_msg_buf(struct i2c_msg *msg, unsigned int threshold); void i2c_put_dma_safe_msg_buf(u8 *buf, struct i2c_msg *msg, bool xferred);