Cover Letter Detail
Show a cover letter.
GET /api/1.1/covers/2221022/?format=api
{ "id": 2221022, "url": "http://patchwork.ozlabs.org/api/1.1/covers/2221022/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-tegra/cover/20260408170818.70322-1-piyushpatle228@gmail.com/", "project": { "id": 21, "url": "http://patchwork.ozlabs.org/api/1.1/projects/21/?format=api", "name": "Linux Tegra Development", "link_name": "linux-tegra", "list_id": "linux-tegra.vger.kernel.org", "list_email": "linux-tegra@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260408170818.70322-1-piyushpatle228@gmail.com>", "date": "2026-04-08T17:08:16", "name": "[v2,0/2] ASoC: tegra210: simplify byte map handling in ADX and AMX", "submitter": { "id": 92665, "url": "http://patchwork.ozlabs.org/api/1.1/people/92665/?format=api", "name": "Piyush Patle", "email": "piyushpatle228@gmail.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-tegra/cover/20260408170818.70322-1-piyushpatle228@gmail.com/mbox/", "series": [ { "id": 499165, "url": "http://patchwork.ozlabs.org/api/1.1/series/499165/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-tegra/list/?series=499165", "date": "2026-04-08T17:08:16", "name": "ASoC: tegra210: simplify byte map handling in ADX and AMX", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/499165/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2221022/comments/", "headers": { "Return-Path": "\n <linux-tegra+bounces-13614-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-tegra@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=lebtebPl;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-tegra+bounces-13614-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com\n header.b=\"lebtebPl\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=209.85.210.171", "smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=gmail.com" ], "Received": [ "from tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4frTzm2rsPz1xv0\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 09 Apr 2026 03:08:36 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id 005A83012CEF\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 8 Apr 2026 17:08:33 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id D778835F163;\n\tWed, 8 Apr 2026 17:08:31 +0000 (UTC)", "from mail-pf1-f171.google.com (mail-pf1-f171.google.com\n [209.85.210.171])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 8600233B6C4\n\tfor <linux-tegra@vger.kernel.org>; Wed, 8 Apr 2026 17:08:30 +0000 (UTC)", "by mail-pf1-f171.google.com with SMTP id\n d2e1a72fcca58-82d0b68837aso3982b3a.2\n for <linux-tegra@vger.kernel.org>;\n Wed, 08 Apr 2026 10:08:30 -0700 (PDT)", "from\n lorddaniel-VivoBook-ASUSLaptop-K3502ZA-S3502ZA.www.tendawifi.com\n ([14.139.108.62])\n by smtp.gmail.com with ESMTPSA id\n d2e1a72fcca58-82cf9b2694csm21775091b3a.2.2026.04.08.10.08.25\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Wed, 08 Apr 2026 10:08:29 -0700 (PDT)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775668111; cv=none;\n b=KTtkWn37xKtnhk3Ne6lsioipXNmmML5hKre38NScYyMJA3eNygFgIdxF/H98UeR0vTuBcQTY6bHS41JSMC6cdWsoqSmNZjjvPYKOT+KrQp89nOyh3/YnT3VG3TTWmtYE9QHS640at9U388wc+bOqkwTlmoHosJ1LACf49tfNMcA=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775668111; c=relaxed/simple;\n\tbh=TVDvBDhhE1GFZeZZeFs+dGuWH0KASYUMZZiT5zbEg7s=;\n\th=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References:\n\t MIME-Version;\n b=gyd8Ck+4Oj/JY7j2UIEWme5aFdkBflzTqOtlVAYaxuvi8xh82aakMvUx93ljFlsILogD5n6OFqzwgwZwp6Ro21pP7ItwYbSPc7JxC6se+jw4Snt97+DOGB0T3oz33OqDNAnzUgVkppcf6fbpRQ1cEMbPx5mKBklsce/DiCP9SjY=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com;\n spf=pass smtp.mailfrom=gmail.com;\n dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com\n header.b=lebtebPl; arc=none smtp.client-ip=209.85.210.171", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=gmail.com; s=20251104; t=1775668110; x=1776272910;\n darn=vger.kernel.org;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:from:to:cc:subject:date\n :message-id:reply-to;\n bh=Xz5Cydk8ycXF/+GGvFsNR7glut2xhT7NU+wPgS7bPP8=;\n b=lebtebPlpGDb8/bEi/NPyFcFExgcXkWDvCg+bENmCpmzFyD3VmYcrAbvCuQaW+0gsp\n MsJ881hdUgJV1HtO5vqcAt4UGTnkZdXsLjWzGYzGD1I1wPCuFoa7YSLUhvkrnEhc2300\n FQTZLvFrFOeM7jbNiR2DghddM/y6qLyzZX+a8etgN1IsCB25ziLQoHcQbat9lhCb+Y+i\n /8BJHXZJnyoANuviJk117j5yrd9Lcdob4j1JXDdkNfTDDD4SMtrnBg656FYN23Tr3WDK\n H2qih7yRAAe7zrXaLp+qNC4bR1G30zIFJvPZ2fsEQUUNcIoVk7456uUwjZF1mBH/1lmv\n 4uHQ==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1775668110; x=1776272910;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from\n :to:cc:subject:date:message-id:reply-to;\n bh=Xz5Cydk8ycXF/+GGvFsNR7glut2xhT7NU+wPgS7bPP8=;\n b=RfSaZzY1uw3T+D8uezfMreMgfBTuXUd5GDif/esT309jS/QSvD5qHpKoubbPYMYvyo\n Z5VpS9jCukPRDwYHnvhLqwp2+bqOkfRJ6dlFdljgNsnhcxRCPtLR3gcpNCRW7jH1xgJK\n Q5H2bn+Z9vNQfIkYxtIGuVWK+VesfRSBcLyBEwDmOr11vkVvcLSmCVgGzpvDc0ac4+Ra\n 8byFEZ2Il7cjNCgh/A4cX/gH/TehsiHjv8YONb0n9Wd0BiKRZsoRKny5lHUuyszt2ISW\n AUxphxBbuR3Ceb1plCfsre++6US+AlrVi+mhw0VeEUsgCLhXcHx2bqnzf4FEeDFloRg6\n +GJQ==", "X-Forwarded-Encrypted": "i=1;\n AJvYcCVV4Vf0dWMEzUX8P/1f6YWqF9Vd+aMttNecxVcvSk5RqtvJQyU4GNE4vvro+0962U+nlUP8EhJDBeE4Lw==@vger.kernel.org", "X-Gm-Message-State": "AOJu0Yysfl8EZHqxDY0QHqvKHeaLfpSMG++GvgMY7Zj17w1WpZTs9/OK\n\tQGxKH3l1DehTqxqg2c6fWPSMM5TKC2k2DuU04tLtA30RQn4NKCuhlS0e", "X-Gm-Gg": "AeBDietnynAJacvtEivfgHQ7PNUEFtuXvrWEQtPmEGkGBI/W29Wt/D0V9sOqJrtAu4N\n\tSH86XtrR0cv4T5vOTgbv5hXdLVN7VVmQXvTYB9dH4rP/Wt6WlP6nlyFv/Ij/K5UI2ehQ1jmzxup\n\tNwqqowkzCgh9Cvjuffkfka6UrUHL3KQYOkSoct0ABaDl2HJ3tN5lBjIglWcUBXf9+Gs7c6Kqpk9\n\tb+ErF3tZtWdSq60Qhmbb4MApJpdECq4D9Bkbsm6HKcKoB0fdGuAjJ1PTI/Fi+bo3g+qHXUsVZVu\n\tT4sjdmonBtIFk20I6bY86UFkeBIZmLI4fQyB8jXXTOyeUJTxUz1oBsb+nW3V5gjiaq3x3Aw2quq\n\t7Ju+KJya5nIv4Pt+HxVCXWfEy35xg6nQNHV0TMyYFmjvEOwj6pn+vjzYHw2LSJC8gwOmvKwCWCb\n\tTnxNZzA+Q02rb4nuL9PLCHs6fn+nr/0JZvIvdlL1GWk0OpGc9WtMmw6L2y0Q+sjLR0NMdkQuVlS\n\thlk9YR5xLkgotvOgykZ7mzi1A7Bq1tU/0U3V+a+rJkmsy/c6SUx4e8FpA==", "X-Received": "by 2002:a05:6a00:429b:b0:824:b181:f492 with SMTP id\n d2e1a72fcca58-82dd8ad1516mr256957b3a.45.1775668109744;\n Wed, 08 Apr 2026 10:08:29 -0700 (PDT)", "From": "Piyush Patle <piyushpatle228@gmail.com>", "To": "Mark Brown <broonie@kernel.org>", "Cc": "Sheetal <sheetal@nvidia.com>,\n\tJonathan Hunter <jonathanh@nvidia.com>,\n\tThierry Reding <thierry.reding@gmail.com>,\n\tLiam Girdwood <lgirdwood@gmail.com>,\n\tJaroslav Kysela <perex@perex.cz>,\n\tTakashi Iwai <tiwai@suse.com>,\n\tKuninori Morimoto <kuninori.morimoto.gx@renesas.com>,\n\tlinux-sound@vger.kernel.org,\n\tlinux-tegra@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org", "Subject": "[PATCH v2 0/2] ASoC: tegra210: simplify byte map handling in ADX and\n AMX", "Date": "Wed, 8 Apr 2026 22:38:16 +0530", "Message-Id": "<20260408170818.70322-1-piyushpatle228@gmail.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20260407170308.100238-3-piyushpatle228@gmail.com>", "References": "<20260407170308.100238-3-piyushpatle228@gmail.com>", "Precedence": "bulk", "X-Mailing-List": "linux-tegra@vger.kernel.org", "List-Id": "<linux-tegra.vger.kernel.org>", "List-Subscribe": "<mailto:linux-tegra+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-tegra+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit" }, "content": "The Tegra210 ADX and AMX drivers both keep their \"Byte Map N\" ALSA\ncontrol state as a byte-packed u32 map[] array along with a separate\nbyte_mask[] bitmap. This is because the control range exposed to\nuserspace is [0, 256], where 256 is the \"disabled\" sentinel and\ndoes not fit in a byte, so the two arrays have to be cross-checked\non every get()/put().\n\nThis series stores each slot as a u16 holding the user-visible\nvalue directly, turning get_byte_map() into a direct return and\nput_byte_map() into a compare-and-store. The hardware-facing packed\nRAM word and the IN_BYTE_EN / OUT_BYTE_EN enable masks are computed\non the fly inside each write_map_ram() callback, which is the only\nplace that needs to know the hardware layout. The byte_mask[] field\nis dropped from both driver state structs.\n\nThere is no userspace-visible ABI change. Control declarations,\nranges, initial values and handling of out-of-range writes is\npreserved by treating values outside [0, 255] as disabled (256),\nmatching previous behavior. As a side effect each patch also fixes\na latent bug in put_byte_map() where an enabled-to-enabled value\nchange was not persisted.\n\nThe packed RAM word construction is also updated to ensure the shift\noperates on a u32 value, avoiding potential undefined behavior due\nto signed integer promotion.\n\nAddresses TODO comments left in tegra210_{adx,amx}_get_byte_map().\n\nChanges since v1:\n - Allocate byte_mask[] dynamically using kcalloc() based on\n soc_data->byte_mask_size instead of fixed-size arrays\n - Propagate -ENOMEM from write_map_ram() to callers\n - Replace magic numbers with TEGRA_{ADX,AMX}_SLOTS_PER_WORD\n - Use BITS_PER_BYTE and BITS_PER_TYPE() instead of literal shifts\n - Add <linux/bits.h> and <linux/slab.h> includes\n\nPatch 1/2: ASoC: tegra210_adx: simplify byte map get/put logic\nPatch 2/2: ASoC: tegra210_amx: simplify byte map get/put logic" }