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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2165EC54EBC for ; Sun, 8 Jan 2023 21:57:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236323AbjAHV5Y (ORCPT ); Sun, 8 Jan 2023 16:57:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236242AbjAHV5L (ORCPT ); Sun, 8 Jan 2023 16:57:11 -0500 Received: from mail-wm1-x330.google.com (mail-wm1-x330.google.com [IPv6:2a00:1450:4864:20::330]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EE04C767B for ; Sun, 8 Jan 2023 13:57:09 -0800 (PST) Received: by mail-wm1-x330.google.com with SMTP id j16-20020a05600c1c1000b003d9ef8c274bso879769wms.0 for ; Sun, 08 Jan 2023 13:57:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=KkvkO0ggi/mdrA5jtRFDVlYd+gaJ5/Kv6++Mtwxlna0=; b=UN5P/yaV2TfnhdDTe4qhIY8cgRyeNXREfjzV5AkC8g1HT8k4At0S2eySfYLFYFjbh3 3857J8xEYMC5ET5kqdryIIIEqlmrrFep2krg23yYAVL6Vb3ClGKY4TrbyzHrcavR1UQk xkcPw97WyBX2PDCfmTv0g+jlltZrqKkj/fh/r0BCfGFG6BRPQAIMBkDfJ98HSBVmTyOS DG776UbRUBIbRVpsWcYlYR0AYnD+WKxg6p7pF87Ib+A4TV1gEs49jaYeHMcM8kEMdEzs 6hVpAgmYw+37w1orj7eBLKzw10kZ+g98XiYIbDLGijbue6j+5WJy7E+B+1+IkuEqa4nz 6DYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=KkvkO0ggi/mdrA5jtRFDVlYd+gaJ5/Kv6++Mtwxlna0=; b=dGhPk2ccnUQ3pD2e34B8eERGPCV1aBum6tQtWxnnUPooKvPxqyteih+/Np2M/moUF/ N52TIEyr9YGSrA8j6RVe0FEXlAdM30IXddFwlsRHMvQ0A0rNQlAG2HoTYzq+NWGNNbQT kfrnNV4WuvewvmIkIokFRTzOW4Zay53Vvyv3jPd4YTiUphgWyNSIy9Jdvsx9ollanGzs K8a5HIgEDeCddknrwIgr6Vj/b34YGwjLRt26QgmrAq9eni5Z8x/UYGE4d4yOxG8J8705 GYaDW10+VBE8lpMWxDLKeEDRkIujRqKZtXcIyll6RnGKjbzsFQ+5JbygiBMeDwvwmxCi WclQ== X-Gm-Message-State: AFqh2kpDWtpBBzWzjx1Q2NLvzWFsgLkGG/COhDVILkmANX9VZZskYPFX 7AXmfuqOnMMqHEoVHpKD5fQ= X-Google-Smtp-Source: AMrXdXssaf/0Yt2WCueicOBdYZ7lW3vVJlMML+M6/LwwgrR8qJDwT9mj5wqf6rVW0nvLc3RzWX2Dbg== X-Received: by 2002:a05:600c:4f02:b0:3d9:f217:6f6b with SMTP id l2-20020a05600c4f0200b003d9f2176f6bmr94043wmq.33.1673215028533; Sun, 08 Jan 2023 13:57:08 -0800 (PST) Received: from localhost.localdomain ([2a10:d582:3bb:0:63f8:f640:f53e:dd47]) by smtp.gmail.com with ESMTPSA id h15-20020a05600c314f00b003d99469ece1sm14654071wmo.24.2023.01.08.13.57.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Jan 2023 13:57:08 -0800 (PST) From: Sudip Mukherjee To: Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, "Maciej W. Rozycki" , Sudip Mukherjee Subject: [PATCH 5/7] parport_pc: Add an ECR mask field for PCI devices Date: Sun, 8 Jan 2023 21:56:54 +0000 Message-Id: <20230108215656.6433-5-sudipm.mukherjee@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230108215656.6433-1-sudipm.mukherjee@gmail.com> References: <20230108215656.6433-1-sudipm.mukherjee@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Maciej W. Rozycki" Add a bitmask field specifying writable ECR bits for PCI devices and apply it via `__parport_pc_probe_port'. Signed-off-by: Maciej W. Rozycki Signed-off-by: Sudip Mukherjee --- drivers/parport/parport_pc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index 2928f36e05ff..d7e64f6dfe90 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -2662,6 +2662,10 @@ static struct parport_pc_pci { /* Bit field of parport modes to exclude. */ unsigned int mode_mask; + /* If non-zero, sets the bitmask of writable ECR bits. In that + * case additionally bit 0 will be forcibly set on writes. */ + unsigned char ecr_writable; + /* If set, this is called immediately after pci_enable_device. * If it returns non-zero, no probing will take place and the * ports will not be used. */ @@ -2868,7 +2872,8 @@ static int parport_pc_pci_probe(struct pci_dev *dev, __parport_pc_probe_port(io_lo, io_hi, irq, PARPORT_DMA_NONE, &dev->dev, IRQF_SHARED, - cards[i].mode_mask, 0); + cards[i].mode_mask, + cards[i].ecr_writable); if (data->ports[count]) count++; } -- 2.30.2