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: 864926 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B0B320A5FC; Thu, 13 Feb 2025 14:10:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.18 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739455861; cv=none; b=ONj6Jp/Nwh69Xwn0WfRaT6MQqw3DdzzG54fczHb5fbu6HonCE9at5IOh4YP41Yk9QOo0PuvV80Ou9itQ5hfsRyMgkgob9e00VgvMg6rxG3vikk/oYnZL8sOPLh1IuK4R6syi4usRYnQmhJUZmEtyGAbo9j6kwkrIEe04WS/d5xQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739455861; c=relaxed/simple; bh=Yp4FrWXW4JaF+mT3WDe29SXBFmsQXNetyMj2cbrB3Lc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tNvIdlW890n/w8SQTwNXRbFXlCStiEXo/tjFme6XMmNr9zqOVYXaqhsICp2xU0lHU5tEUbCD3NwAUNPRgt4qUgkXkj1uNbW7aBZxUiFTamHcZ7HpkQXANb9C8KhK0r0Z9bi3MzIdxGxkrjwRECQ5AExrOZv6+xhgo5se3ps7OsA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=QmQMcXe+; arc=none smtp.client-ip=198.175.65.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="QmQMcXe+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1739455860; x=1770991860; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Yp4FrWXW4JaF+mT3WDe29SXBFmsQXNetyMj2cbrB3Lc=; b=QmQMcXe+0Jw/YQFAgK6i+OYyk3rAG6SnYoFN28hZJnIaKoW5S5xwL+5x OYtYCB5YmdklzjItgXlmwYnix2TTUWwW45fjPIofwLaUlaqQHC6pVSqgJ KCHHUbk9wBcim5B8DKay17A9GcApIbQ2xsgQQ98Nh/F2T0Kt76TcnoxCA XOcTTpcU/M5JLhwCAUGR4Gwhm8NZ51efx5sjPB3QxKVYKAoPA3uOWT6/n kEg7CdBVvIAlvAQrZi+8K9svHf2QYtBUGfB5IbsOKAznVmBQvlxM1bIiO fuYuXhxQEqR733460I3NFyujQnlF1N8OlU7pLBqn/cMTXFnpne84W7pZC A==; X-CSE-ConnectionGUID: 0TjNgBOVSO6tvN/kGGrCNw== X-CSE-MsgGUID: ogAOugOcREmAS1fxZHCsMg== X-IronPort-AV: E=McAfee;i="6700,10204,11314"; a="40273362" X-IronPort-AV: E=Sophos;i="6.12,310,1728975600"; d="scan'208";a="40273362" 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> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 --- 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);