From patchwork Sat Feb 10 15:28:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 771979 Received: from mail-ed1-f45.google.com (mail-ed1-f45.google.com [209.85.208.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2188F364BF for ; Sat, 10 Feb 2024 15:28:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.45 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707578929; cv=none; b=AHcuL4wuU5QQ3lG01n12wMvs672L8oP4QeKBsq2LiKHGlS8wZ6G/Ytkk+XO/QJIbgAm4OTk5lRjCDHEHithUuyJI8y84XEZ0Xp24cGGAQZOUNVwOWA4BKKB3y734g87YRXNERaCcndgS8JbkBVn0SbP+5PIA8WAHVts7BJgnUXI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707578929; c=relaxed/simple; bh=THIf63cNe0hbAUzX3bzh1vx1MO0mrsr1I2B/KDD74fc=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=pP3E75VvLWSq24Hyrl8FbWFcQxQdsxHAOprM+HT6DzWAL0+sNPG3S2OAV/MBpPAZPtjA4Uc66lmWjxdnn+RkxdOFfOmdwX0pMOCx0UX940yyJmC6CWkNuCwc4RnK9nKROj/D163fAPplqySI4b314/c0moqe8Ls0qPC/eB0XLkQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=XtgHfzob; arc=none smtp.client-ip=209.85.208.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XtgHfzob" Received: by mail-ed1-f45.google.com with SMTP id 4fb4d7f45d1cf-56174bbad45so420168a12.1 for ; Sat, 10 Feb 2024 07:28:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1707578926; x=1708183726; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=pnrbItPU1eG4106CUvQNvjYzD7Nm3Z4rSfas2ScFL7Y=; b=XtgHfzobijVAo9m1QOrUAw8KHI5u1e3yg9IOjMhEFgeMfd0hfZZ9+mcgMexpFO1AEX f+Uw7bY9U+VR46/OBZziRZT6zudpHQ4ny1XVvkbzg6UkQURSvMDZPbRqd/aRwx6+bVK/ Yc/NE9hmgr408rbGGWvy0Q++xwlKCP4qHRS0Dnr9IohK/7XlFGnEReYqM1L1n7juOnu5 5lEW8jeLwE3db65PmyRmPDqmma3RbfU3IUdGg25r9fIniQkBez1Rp6kxQufQG1Ishgyx 40bAp9OnzG8PhmoUWf2c0r2VvjTrk2GZL/gjDva5xEgyCF7HZ48nsFw3SeyDwdmdMAdw rLKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707578926; x=1708183726; h=content-transfer-encoding:in-reply-to:autocrypt:references:cc:to :from:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=pnrbItPU1eG4106CUvQNvjYzD7Nm3Z4rSfas2ScFL7Y=; b=qp3FWVxW/+TbQKfpHaAl9p8aeoJHiaoYpUknbTKnfXKMRcBFbFslL0e9Me1gIF7sEy XCmLA/kaqDAUswlGMMR/53pUYjxkmZwVgEnoXwtGYXJBdcL9sr4O6iptzgZkJfujNxJb rjS6MIhAMQnYR+Q+/nnJH0LK9v9lvFcZh2UuIRtMGTENiGtz+pv+MOOJKdMUKUQYn2ln yz92M2vDS6dX+ixRLx5QtIMd1eeo/4AIiJ0K7Hpg+agk2dmHRJIa3EIYz2H0AJ84xdaS BvjHHl9MkEPWilUiCUlNI+Vtk7VEkBV8v7IkpR6Z551fgyOodteKrc2XkHP5HAZqmB8B wIkg== X-Gm-Message-State: AOJu0YzpxstdBcYgGCUMn/uKNHOX+DNqTw0cuPJxhnFrLBw9RvPP6CQw ShHXssZmC9V/2aNEYcyHL1O66AsaasfTKgX7l3Z9+RcwaZw/2IkaEsNLS5/5 X-Google-Smtp-Source: AGHT+IEIy/gv/0pHeI6U6lF+MZkOKv5jB2yK5wgr7CWBtGq1IdyU8timMRb4ATBEiHPSQewwoijY3A== X-Received: by 2002:aa7:d40f:0:b0:561:3de1:ba36 with SMTP id z15-20020aa7d40f000000b005613de1ba36mr1354877edq.34.1707578926257; Sat, 10 Feb 2024 07:28:46 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCV5iZvNyIEknwaXsKmtWP9aQS1jWrYwtZCzwuj35mlnvQF6lxlcAVoIGx9E6XOQwmSOATLQgOOxHPvYf/+uGci+RHseWAc= Received: from ?IPV6:2a01:c23:c5e3:d400:ad36:6b8:178b:1fc8? (dynamic-2a01-0c23-c5e3-d400-ad36-06b8-178b-1fc8.c23.pool.telefonica.de. [2a01:c23:c5e3:d400:ad36:6b8:178b:1fc8]) by smtp.googlemail.com with ESMTPSA id d13-20020a056402400d00b00560b0b707adsm851631eda.73.2024.02.10.07.28.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 10 Feb 2024 07:28:45 -0800 (PST) Message-ID: <68c013cc-70bd-4c5b-b6b3-5f2d87a218fa@gmail.com> Date: Sat, 10 Feb 2024 16:28:46 +0100 Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH 2/3] i2c: i801: Move i801_wait_intr and i801_wait_byte_done in the code Content-Language: en-US From: Heiner Kallweit To: Jean Delvare , Andi Shyti Cc: "linux-i2c@vger.kernel.org" References: Autocrypt: addr=hkallweit1@gmail.com; keydata= xsFNBF/0ZFUBEAC0eZyktSE7ZNO1SFXL6cQ4i4g6Ah3mOUIXSB4pCY5kQ6OLKHh0FlOD5/5/ sY7IoIouzOjyFdFPnz4Bl3927ClT567hUJJ+SNaFEiJ9vadI6vZm2gcY4ExdIevYHWe1msJF MVE4yNwdS+UsPeCF/6CQQTzHc+n7DomE7fjJD5J1hOJjqz2XWe71fTvYXzxCFLwXXbBiqDC9 dNqOe5odPsa4TsWZ09T33g5n2nzTJs4Zw8fCy8rLqix/raVsqr8fw5qM66MVtdmEljFaJ9N8 /W56qGCp+H8Igk/F7CjlbWXiOlKHA25mPTmbVp7VlFsvsmMokr/imQr+0nXtmvYVaKEUwY2g 86IU6RAOuA8E0J5bD/BeyZdMyVEtX1kT404UJZekFytJZrDZetwxM/cAH+1fMx4z751WJmxQ J7mIXSPuDfeJhRDt9sGM6aRVfXbZt+wBogxyXepmnlv9K4A13z9DVLdKLrYUiu9/5QEl6fgI kPaXlAZmJsQfoKbmPqCHVRYj1lpQtDM/2/BO6gHASflWUHzwmBVZbS/XRs64uJO8CB3+V3fa cIivllReueGCMsHh6/8wgPAyopXOWOxbLsZ291fmZqIR0L5Y6b2HvdFN1Xhc+YrQ8TKK+Z4R mJRDh0wNQ8Gm89g92/YkHji4jIWlp2fwzCcx5+lZCQ1XdqAiHQARAQABzSZIZWluZXIgS2Fs bHdlaXQgPGhrYWxsd2VpdDFAZ21haWwuY29tPsLBjgQTAQgAOBYhBGxfqY/yOyXjyjJehXLe ig9U8DoMBQJf9GRVAhsDBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAAAoJEHLeig9U8DoMSycQ AJbfg8HZEK0ljV4M8nvdaiNixWAufrcZ+SD8zhbxl8GispK4F3Yo+20Y3UoZ7FcIidJWUUJL axAOkpI/70YNhlqAPMsuudlAieeYZKjIv1WV5ucNZ3VJ7dC+dlVqQdAr1iD869FZXvy91KhJ wYulyCf+s4T9YgmLC6jLMBZghKIf1uhSd0NzjyCqYWbk2ZxByZHgunEShOhHPHswu3Am0ftt ePaYIHgZs+Vzwfjs8I7EuW/5/f5G9w1vibXxtGY/GXwgGGHRDjFM7RSprGOv4F5eMGh+NFUJ TU9N96PQYMwXVxnQfRXl8O6ffSVmFx4H9rovxWPKobLmqQL0WKLLVvA/aOHCcMKgfyKRcLah 57vGC50Ga8oT2K1g0AhKGkyJo7lGXkMu5yEs0m9O+btqAB261/E3DRxfI1P/tvDZpLJKtq35 dXsj6sjvhgX7VxXhY1wE54uqLLHY3UZQlmH3QF5t80MS7/KhxB1pO1Cpcmkt9hgyzH8+5org +9wWxGUtJWNP7CppY+qvv3SZtKJMKsxqk5coBGwNkMms56z4qfJm2PUtJQGjA65XWdzQACib 2iaDQoBqGZfXRdPT0tC1H5kUJuOX4ll1hI/HBMEFCcO8++Bl2wcrUsAxLzGvhINVJX2DAQaF aNetToazkCnzubKfBOyiTqFJ0b63c5dqziAgzsFNBF/0ZFUBEADF8UEZmKDl1w/UxvjeyAeX kghYkY3bkK6gcIYXdLRfJw12GbvMioSguvVzASVHG8h7NbNjk1yur6AONfbUpXKSNZ0skV8V fG+ppbaY+zQofsSMoj5gP0amwbwvPzVqZCYJai81VobefTX2MZM2Mg/ThBVtGyzV3NeCpnBa 8AX3s9rrX2XUoCibYotbbxx9afZYUFyflOc7kEpc9uJXIdaxS2Z6MnYLHsyVjiU6tzKCiVOU KJevqvzPXJmy0xaOVf7mhFSNQyJTrZpLa+tvB1DQRS08CqYtIMxRrVtC0t0LFeQGly6bOngr ircurWJiJKbSXVstLHgWYiq3/GmCSx/82ObeLO3PftklpRj8d+kFbrvrqBgjWtMH4WtK5uN5 1WJ71hWJfNchKRlaJ3GWy8KolCAoGsQMovn/ZEXxrGs1ndafu47yXOpuDAozoHTBGvuSXSZo ythk/0EAuz5IkwkhYBT1MGIAvNSn9ivE5aRnBazugy0rTRkVggHvt3/7flFHlGVGpBHxFUwb /a4UjJBPtIwa4tWR8B1Ma36S8Jk456k2n1id7M0LQ+eqstmp6Y+UB+pt9NX6t0Slw1NCdYTW gJezWTVKF7pmTdXszXGxlc9kTrVUz04PqPjnYbv5UWuDd2eyzGjrrFOsJEi8OK2d2j4FfF++ AzOMdW09JVqejQARAQABwsF2BBgBCAAgFiEEbF+pj/I7JePKMl6Fct6KD1TwOgwFAl/0ZFUC GwwACgkQct6KD1TwOgxUfg//eAoYc0Vm4NrxymfcY30UjHVD0LgSvU8kUmXxil3qhFPS7KA+ y7tgcKLHOkZkXMX5MLFcS9+SmrAjSBBV8omKoHNo+kfFx/dUAtz0lot8wNGmWb+NcHeKM1eb nwUMOEa1uDdfZeKef/U/2uHBceY7Gc6zPZPWgXghEyQMTH2UhLgeam8yglyO+A6RXCh+s6ak Wje7Vo1wGK4eYxp6pwMPJXLMsI0ii/2k3YPEJPv+yJf90MbYyQSbkTwZhrsokjQEaIfjrIk3 rQRjTve/J62WIO28IbY/mENuGgWehRlTAbhC4BLTZ5uYS0YMQCR7v9UGMWdNWXFyrOB6PjSu Trn9MsPoUc8qI72mVpxEXQDLlrd2ijEWm7Nrf52YMD7hL6rXXuis7R6zY8WnnBhW0uCfhajx q+KuARXC0sDLztcjaS3ayXonpoCPZep2Bd5xqE4Ln8/COCslP7E92W1uf1EcdXXIrx1acg21 H/0Z53okMykVs3a8tECPHIxnre2UxKdTbCEkjkR4V6JyplTS47oWMw3zyI7zkaadfzVFBxk2 lo/Tny+FX1Azea3Ce7oOnRUEZtWSsUidtIjmL8YUQFZYm+JUIgfRmSpMFq8JP4VH43GXpB/S OCrl+/xujzvoUBFV/cHKjEQYBxo+MaiQa1U54ykM2W4DnHb1UiEf5xDkFd4= In-Reply-To: Move both functions to avoid forward declarations in a subsequent patch. Signed-off-by: Heiner Kallweit --- drivers/i2c/busses/i2c-i801.c | 68 +++++++++++++++++------------------ 1 file changed, 34 insertions(+), 34 deletions(-) diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 4951d7d90..751b7c6d2 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -330,6 +330,40 @@ MODULE_PARM_DESC(disable_features, "Disable selected driver features:\n" "\t\t 0x10 don't use interrupts\n" "\t\t 0x20 disable SMBus Host Notify "); +/* Wait for BUSY being cleared and either INTR or an error flag being set */ +static int i801_wait_intr(struct i801_priv *priv) +{ + unsigned long timeout = jiffies + priv->adapter.timeout; + int status, busy; + + do { + usleep_range(250, 500); + status = inb_p(SMBHSTSTS(priv)); + busy = status & SMBHSTSTS_HOST_BUSY; + status &= STATUS_ERROR_FLAGS | SMBHSTSTS_INTR; + if (!busy && status) + return status & STATUS_ERROR_FLAGS; + } while (time_is_after_eq_jiffies(timeout)); + + return -ETIMEDOUT; +} + +/* Wait for either BYTE_DONE or an error flag being set */ +static int i801_wait_byte_done(struct i801_priv *priv) +{ + unsigned long timeout = jiffies + priv->adapter.timeout; + int status; + + do { + usleep_range(250, 500); + status = inb_p(SMBHSTSTS(priv)); + if (status & (STATUS_ERROR_FLAGS | SMBHSTSTS_BYTE_DONE)) + return status & STATUS_ERROR_FLAGS; + } while (time_is_after_eq_jiffies(timeout)); + + return -ETIMEDOUT; +} + static int i801_get_block_len(struct i801_priv *priv) { u8 len = inb_p(SMBHSTDAT0(priv)); @@ -447,40 +481,6 @@ static int i801_check_post(struct i801_priv *priv, int status) return result; } -/* Wait for BUSY being cleared and either INTR or an error flag being set */ -static int i801_wait_intr(struct i801_priv *priv) -{ - unsigned long timeout = jiffies + priv->adapter.timeout; - int status, busy; - - do { - usleep_range(250, 500); - status = inb_p(SMBHSTSTS(priv)); - busy = status & SMBHSTSTS_HOST_BUSY; - status &= STATUS_ERROR_FLAGS | SMBHSTSTS_INTR; - if (!busy && status) - return status & STATUS_ERROR_FLAGS; - } while (time_is_after_eq_jiffies(timeout)); - - return -ETIMEDOUT; -} - -/* Wait for either BYTE_DONE or an error flag being set */ -static int i801_wait_byte_done(struct i801_priv *priv) -{ - unsigned long timeout = jiffies + priv->adapter.timeout; - int status; - - do { - usleep_range(250, 500); - status = inb_p(SMBHSTSTS(priv)); - if (status & (STATUS_ERROR_FLAGS | SMBHSTSTS_BYTE_DONE)) - return status & STATUS_ERROR_FLAGS; - } while (time_is_after_eq_jiffies(timeout)); - - return -ETIMEDOUT; -} - static int i801_transaction(struct i801_priv *priv, int xact) { unsigned long result;