From patchwork Sat Feb 10 15:27:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 771636 Received: from mail-ed1-f51.google.com (mail-ed1-f51.google.com [209.85.208.51]) (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 2ED8F5B69F for ; Sat, 10 Feb 2024 15:27:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707578871; cv=none; b=fYHs1DJWhQ2oCr9GFOdbubmMFm+qAsen83XPEeoSqrIwR7mn6NMqEvgepHU+xoT/SoZGkDD9RGS3vSS9A1UqBYAsWq7mjXC3MWpkpGikwRoNTjPAA5eG222ZHhISRWhjC9WeiG4/Ts6v4R921bulqVKNJ+e2ZTdd2MTXmuSoq/s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707578871; c=relaxed/simple; bh=oaoDt5yf3FC+k/UiYMLvFIGyh3iegfWsot4Hn5r9Nyg=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=InBUhWfej7DV+Ik7HFgDP2mQ2y/iFBaIqC+A/bkIhI/YooF6nTJdZeOQYxg0/wLvGOFzjkNtghzQMLhkEnXhTwtkv5Ja0UPrQW2xqfD0Jy2PmbNbfBSV5sj6TyhJYDwJ6LaLqFUvLQr+vUp+djYJlDfUhBF+bv6wXWa5mqxQna8= 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=bPtNSMMD; arc=none smtp.client-ip=209.85.208.51 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="bPtNSMMD" Received: by mail-ed1-f51.google.com with SMTP id 4fb4d7f45d1cf-5610b9855a8so4831320a12.0 for ; Sat, 10 Feb 2024 07:27:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1707578867; x=1708183667; 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=OUqH6U2FqffRJUXLWYxAToa5lBPKpOUcvs42qsO04Js=; b=bPtNSMMDEUokIDVAWcxeSMyUThGm64tGGPaAa7GlcUaZMuoh+oDgQ45RFGJ+Im3YmS 0BRvHlQFG1duC5ez6vE8u1JC5OG7sLzgLaRBG8U5wg+yZyiZcwWjtaUEzl4MqX1spcgk vUfyBAf7Qvz+CSEJz+HEJwXLrBjpUcjRCr152y3QD+iwia3+BAo2TNvOE4vkVdNpbEer b19fh0dK1WMdCSTt3VgsMTg/qoShj1VZQXEkzg1NFcfOay6FB+La17KeQ4tWtpkRqTsq luz6oDkpr2b0OfcLZ6bQ7HHPigSoEa7nR0fGs73LK0w0GThFYgVfVtfHNEaCBDmuXHoe PoZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707578867; x=1708183667; 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=OUqH6U2FqffRJUXLWYxAToa5lBPKpOUcvs42qsO04Js=; b=Xjgms9idl/0SiuCiE/PJD3m8blhFO27vqHzXap9F62kbC3KalaTFgcDspVSMgQh3aX DBbyNj6z7mx3o42bW70SalSW+369EB2AyYKjyLZtGZ2tsv6y+XLR+WbdE0B/olavo/3b dMx42+1LZahGj8teewQR7wMfSrlhHEPVug5U/QNGk1+4TNdhCZXccpHu+iVTi6OERpgk b5qoK8Nh3p/Qz1RKnD2/uQyoWgrFFEQ6L8zdLS4gAeKPEcnzPDG+4+tCUe3QNIZ24Tbm 2Tlxm7HkuZwO4mZmUvP8SQn245osHV1eUa8A7UrWW0dN3d6XXDjZRwqAvaR4RLPhB5T2 IUig== X-Gm-Message-State: AOJu0Yz4XLCPGl+a61FB9oQh7W85E18RLI4TQ1Uj+W3f5FiHD4pQ36Kz ah/D36MY5S6YGveVNvA9cM0NkUtfIAajFTy70sdOgFBzBbSYaT1j3PZ6gzKa X-Google-Smtp-Source: AGHT+IH0PsMNJgtGm4u6Dbsc0Uc9ctI4KeUVFteuKudMGB2TcrEXNCJYzI/lFCQjd2pOzfPBYC5Wqw== X-Received: by 2002:a05:6402:559:b0:561:33dd:621c with SMTP id i25-20020a056402055900b0056133dd621cmr2234205edx.7.1707578867046; Sat, 10 Feb 2024 07:27:47 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCUjHUv0WhHJ9nQC83T2JoTwhb2ZFkdS+lqF21mwENGh+E3HmPv6lFCg5ZpJ76qB+YqQwX/20M7xZUkG4Ga6YU2EWZGYZN8= 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.73.2024.02.10.07.27.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 10 Feb 2024 07:27:46 -0800 (PST) Message-ID: Date: Sat, 10 Feb 2024 16:27:47 +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 1/3] i2c: i801: Cosmetic improvements 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: - Use pci_err et al instead of dev_err to simplify the code - Combine an error and subsequent debug message in i801_check_post() - use format %pr to print resource Signed-off-by: Heiner Kallweit --- drivers/i2c/busses/i2c-i801.c | 54 ++++++++++++++--------------------- 1 file changed, 22 insertions(+), 32 deletions(-) diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 918c794c7..4951d7d90 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -398,25 +398,22 @@ static int i801_check_post(struct i801_priv *priv, int status) * If the SMBus is still busy, we give up */ if (unlikely(status < 0)) { - dev_err(&priv->pci_dev->dev, "Transaction timeout\n"); + pci_err(priv->pci_dev, "Timeout, terminating transaction\n"); /* try to stop the current command */ - dev_dbg(&priv->pci_dev->dev, "Terminating the current operation\n"); outb_p(SMBHSTCNT_KILL, SMBHSTCNT(priv)); usleep_range(1000, 2000); outb_p(0, SMBHSTCNT(priv)); /* Check if it worked */ status = inb_p(SMBHSTSTS(priv)); - if ((status & SMBHSTSTS_HOST_BUSY) || - !(status & SMBHSTSTS_FAILED)) - dev_err(&priv->pci_dev->dev, - "Failed terminating the transaction\n"); + if ((status & SMBHSTSTS_HOST_BUSY) || !(status & SMBHSTSTS_FAILED)) + pci_err(priv->pci_dev, "Failed terminating the transaction\n"); return -ETIMEDOUT; } if (status & SMBHSTSTS_FAILED) { result = -EIO; - dev_err(&priv->pci_dev->dev, "Transaction failed\n"); + pci_err(priv->pci_dev, "Transaction failed\n"); } if (status & SMBHSTSTS_DEV_ERR) { /* @@ -444,7 +441,7 @@ static int i801_check_post(struct i801_priv *priv, int status) } if (status & SMBHSTSTS_BUS_ERR) { result = -EAGAIN; - dev_dbg(&priv->pci_dev->dev, "Lost arbitration\n"); + pci_dbg(priv->pci_dev, "Lost arbitration\n"); } return result; @@ -572,8 +569,7 @@ static void i801_isr_byte_done(struct i801_priv *priv) if (priv->count < priv->len) priv->data[priv->count++] = inb(SMBBLKDAT(priv)); else - dev_dbg(&priv->pci_dev->dev, - "Discarding extra byte on block read\n"); + pci_dbg(priv->pci_dev, "Discarding extra byte on block read\n"); /* Set LAST_BYTE for last byte of read transaction */ if (priv->count == priv->len - 1) @@ -1262,7 +1258,7 @@ static void register_dell_lis3lv02d_i2c_device(struct i801_priv *priv) } if (i == ARRAY_SIZE(dell_lis3lv02d_devices)) { - dev_warn(&priv->pci_dev->dev, + pci_warn(priv->pci_dev, "Accelerometer lis3lv02d is present on SMBus but its" " address is unknown, skipping registration\n"); return; @@ -1533,7 +1529,7 @@ static void i801_add_tco(struct i801_priv *priv) priv->tco_pdev = i801_add_tco_spt(pci_dev, tco_res); if (IS_ERR(priv->tco_pdev)) - dev_warn(&pci_dev->dev, "failed to create iTCO device\n"); + pci_warn(pci_dev, "failed to create iTCO device\n"); } #ifdef CONFIG_ACPI @@ -1562,8 +1558,8 @@ i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits, if (!priv->acpi_reserved && i801_acpi_is_smbus_ioport(priv, address)) { priv->acpi_reserved = true; - dev_warn(&pdev->dev, "BIOS is accessing SMBus registers\n"); - dev_warn(&pdev->dev, "Driver SMBus register access inhibited\n"); + pci_warn(pdev, "BIOS is accessing SMBus registers\n"); + pci_warn(pdev, "Driver SMBus register access inhibited\n"); /* * BIOS is accessing the host controller so prevent it from @@ -1644,8 +1640,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) /* Disable features on user request */ for (i = 0; i < ARRAY_SIZE(i801_feature_names); i++) { if (priv->features & disable_features & (1 << i)) - dev_notice(&dev->dev, "%s disabled by user\n", - i801_feature_names[i]); + pci_notice(dev, "%s disabled by user\n", i801_feature_names[i]); } priv->features &= ~disable_features; @@ -1655,8 +1650,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) err = pcim_enable_device(dev); if (err) { - dev_err(&dev->dev, "Failed to enable SMBus PCI device (%d)\n", - err); + pci_err(dev, "Failed to enable SMBus PCI device (%d)\n", err); return err; } pcim_pin_device(dev); @@ -1664,8 +1658,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) /* Determine the address of the SMBus area */ priv->smba = pci_resource_start(dev, SMBBAR); if (!priv->smba) { - dev_err(&dev->dev, - "SMBus base address uninitialized, upgrade BIOS\n"); + pci_err(dev, "SMBus base address uninitialized, upgrade BIOS\n"); return -ENODEV; } @@ -1674,26 +1667,24 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) err = pcim_iomap_regions(dev, 1 << SMBBAR, DRV_NAME); if (err) { - dev_err(&dev->dev, - "Failed to request SMBus region 0x%lx-0x%Lx\n", - priv->smba, - (unsigned long long)pci_resource_end(dev, SMBBAR)); + pci_err(dev, "Failed to request SMBus region %pr\n", + pci_resource_n(dev, SMBBAR)); i801_acpi_remove(priv); return err; } - pci_read_config_byte(priv->pci_dev, SMBHSTCFG, &priv->original_hstcfg); + pci_read_config_byte(dev, SMBHSTCFG, &priv->original_hstcfg); i801_setup_hstcfg(priv); if (!(priv->original_hstcfg & SMBHSTCFG_HST_EN)) - dev_info(&dev->dev, "Enabling SMBus device\n"); + pci_info(dev, "Enabling SMBus device\n"); if (priv->original_hstcfg & SMBHSTCFG_SMB_SMI_EN) { - dev_dbg(&dev->dev, "SMBus using interrupt SMI#\n"); + pci_dbg(dev, "SMBus using interrupt SMI#\n"); /* Disable SMBus interrupt feature if SMBus using SMI# */ priv->features &= ~FEATURE_IRQ; } if (priv->original_hstcfg & SMBHSTCFG_SPD_WD) - dev_info(&dev->dev, "SPD Write Disable is set\n"); + pci_info(dev, "SPD Write Disable is set\n"); /* Clear special mode bits */ if (priv->features & (FEATURE_SMBUS_PEC | FEATURE_BLOCK_BUFFER)) @@ -1712,7 +1703,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) /* Complain if an interrupt is already pending */ pci_read_config_word(priv->pci_dev, PCI_STATUS, &pcists); if (pcists & PCI_STATUS_INTERRUPT) - dev_warn(&dev->dev, "An interrupt is pending!\n"); + pci_warn(dev, "An interrupt is pending!\n"); } if (priv->features & FEATURE_IRQ) { @@ -1721,12 +1712,11 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) err = devm_request_irq(&dev->dev, dev->irq, i801_isr, IRQF_SHARED, DRV_NAME, priv); if (err) { - dev_err(&dev->dev, "Failed to allocate irq %d: %d\n", - dev->irq, err); + pci_err(dev, "Failed to allocate irq %d: %d\n", dev->irq, err); priv->features &= ~FEATURE_IRQ; } } - dev_info(&dev->dev, "SMBus using %s\n", + pci_info(dev, "SMBus using %s\n", priv->features & FEATURE_IRQ ? "PCI interrupt" : "polling"); /* Host notification uses an interrupt */ 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; From patchwork Sat Feb 10 15:31:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiner Kallweit X-Patchwork-Id: 771635 Received: from mail-ed1-f50.google.com (mail-ed1-f50.google.com [209.85.208.50]) (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 5CB445BAE2 for ; Sat, 10 Feb 2024 15:31:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.50 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707579074; cv=none; b=ojN0E7/llsNwjaQ54NU5vVpL+UC4EBeN22I0vUuCXYFNaRaUxnHpB1ytDZV5dw05OZpgIccvG5L/+x40ENDvoYMRvEZKjtwUfOzO8W1bcgn/ojflAq8lkRZBPvO86x6lxCN1GQP5sT0aS5OMzShe+Vc60AybJ2Nnl0Ts1Y6ROhw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707579074; c=relaxed/simple; bh=XND5jxMyXzeXIIBm1aM65GbeOmD0tbef9c5XIb2j738=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=Nl4udZNJKTlO9f6dc699JZNCYMW/n4HQMi/8RjL2E3FKQ9rYeMyoBBRIwzNMbm+xFmKhvlZr4DNrjzL0lsSm03MxMHQ0bXTWVdEorTTZsCSPv21dIIk3ki3YUR1vHlhES03vH1SYr/3GYoFDf/5RhdsjYxW4UzoMcRN+oSAgYxM= 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=HtpnkUvh; arc=none smtp.client-ip=209.85.208.50 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="HtpnkUvh" Received: by mail-ed1-f50.google.com with SMTP id 4fb4d7f45d1cf-55fc7f63639so2534978a12.1 for ; Sat, 10 Feb 2024 07:31:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1707579070; x=1708183870; 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=4TR93Z+epYC3IzPljlWW+negHoj8omyRWaO9e5+QSGQ=; b=HtpnkUvhoJ9CU1NXAm1Jx8c1AeAr7s4ybnZEbonFUNbgMoJrMVtQBMjmi1Cz+gjSOZ 2J+6sAcb34Q8LYQ8ki0ZBxUtA/2niz4phFtWz3jkFEhwk9OEdoA3SWHAuGPv8zgE1zlA IPXfL1IWB/ruk2atbPJJhp8j8chVoR+FrIdjv6beL6SwaAVBgHHYRUFHfIJ+I3SyzKbR Rc1m1THoe5DkPVHbgcPjz5XQt8nApOhSyONoljVZRGZ7mI7Eo1GMcwxss3AmJGkhyQ8C TQKMzIdpsNGkjHyN/THuZOm4EOHIQpaD2rcUrn2JE+dVAqe56sh+dr1y2HV+LtU1rlmy 0PfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707579070; x=1708183870; 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=4TR93Z+epYC3IzPljlWW+negHoj8omyRWaO9e5+QSGQ=; b=iRh12NxUHqjeJzkknB6jdxVtUiOK01KhMUcpsGq8OK0FWHeaoLB/LOfJj1Um6CLTiE ovu0u9vvFzVpHD/al99veQEdk0cVyQEjPnFk3US7i3Rd4R1InjH4UqNplwTaWIbow5MU +uBnP6sjFptfbiQxtd/ExTssT3awMHLahwznQqBlk/iGe44k73MW9RCZBPDX2mYEk/Ha p9VIqlx0DIRWCiPICSxpNo6eJLbXzam+XnDrh+KFCAdhURNamwYNwbOU/L21jSMTc+t1 E6zh+MBqKMIix6VK2hueGbffBGfv58EgZrT9QQFqq40idz/NWL3cigElrH/w/fUa8/Jm xlmQ== X-Gm-Message-State: AOJu0Yyu+MGq7m511IokxdhCFKgWwdmCQ3Cj1kQWpwlkamBT/CiFxQS9 D3TTTHU2e11klWuSuWhaKVsZBqcLMloinTVGPesxfnkz5EpOX4/KDyge/VO+ X-Google-Smtp-Source: AGHT+IFThiMybdE0jyVToIPOxFOV46YNKbh2e6MjjTOaaje/pigUFfTFj/nn5qqzw+C5PmBo/fIVtQ== X-Received: by 2002:aa7:d8c7:0:b0:561:1364:bd06 with SMTP id k7-20020aa7d8c7000000b005611364bd06mr1342916eds.29.1707579070296; Sat, 10 Feb 2024 07:31:10 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCVi+t7Zj0V93g9PfeB4v9j7AkZMJLtX2bJoONPatj6+tQzLoCX6p1aWxeQYrGTnhq4U+S9KjmFUBQEUfBurFViyP6dCBMo= 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 l14-20020a056402124e00b005611917ebabsm826536edw.47.2024.02.10.07.31.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 10 Feb 2024 07:31:09 -0800 (PST) Message-ID: Date: Sat, 10 Feb 2024 16:31:10 +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 3/3] i2c: i801: Improve too small kill wait time in i801_check_post 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: In my tests terminating a transaction took about 25ms, what is in line with the chip-internal timeout as described in 5.21.3.2 "Bus Time Out" in [0]. Therefore the 2ms delay is too low. Instead of a fixed delay let's use i801_wait_intr() here, this also facilitates the status handling. This potential issue seems to have been existing forever, but as no related problem is known, treat it as an improvement. [0] Intel document #326776-003, 7 Series PCH datasheet Signed-off-by: Heiner Kallweit --- drivers/i2c/busses/i2c-i801.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 751b7c6d2..5a84eb1a6 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -435,12 +435,11 @@ static int i801_check_post(struct i801_priv *priv, int status) pci_err(priv->pci_dev, "Timeout, terminating transaction\n"); /* try to stop the current command */ outb_p(SMBHSTCNT_KILL, SMBHSTCNT(priv)); - usleep_range(1000, 2000); + status = i801_wait_intr(priv); outb_p(0, SMBHSTCNT(priv)); /* Check if it worked */ - status = inb_p(SMBHSTSTS(priv)); - if ((status & SMBHSTSTS_HOST_BUSY) || !(status & SMBHSTSTS_FAILED)) + if (status < 0 || !(status & SMBHSTSTS_FAILED)) pci_err(priv->pci_dev, "Failed terminating the transaction\n"); return -ETIMEDOUT; }