From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (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 08E364D58A for ; Mon, 12 Feb 2024 21:31:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707773513; cv=none; b=uMZEVw0xQr/jayri5mpttmjap5GCpXLbiVsHaw1YN/xgYoSKWAqrSUoqN5Ri7eqDY8/HRlFwi1m3piu458BO7BkyCB2MM2W5D1sU+5gLKWEpPeYGL3apxZTE/gnzATIp3cJsAtEVnNjv+1Uq/EhZ2f5KAlwN4GwQ2vOm8XIhCiA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707773513; c=relaxed/simple; bh=uChUnQc4QHp+qfT44V695j8Bfi5csO+b4Ks0xqs3YHM=; h=Date:Message-Id:Mime-Version:Subject:From:To:Cc:Content-Type; b=BtEOnaGJA2v4uDlVMwb4tMvgikYEkZg/nB2FMM/JaYdYA5GMlDci7SVNMKNUtci9q/lXj7qio5n7vrJAd8L7rGq3WuDO6mZivw453YPP8gah/rMPRPfPBxyuJnm/iPv0gc8lkK434EFOalAQfOBNRBzXrZw7Z4E6MxwpkNB5xAM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--saravanak.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=kR1S9b0x; arc=none smtp.client-ip=209.85.219.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--saravanak.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="kR1S9b0x" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-dc74ac7d015so5023177276.0 for ; Mon, 12 Feb 2024 13:31:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1707773510; x=1708378310; darn=vger.kernel.org; h=cc:to:from:subject:mime-version:message-id:date:from:to:cc:subject :date:message-id:reply-to; bh=eNLzwhDxpGsG0xXWUreD5zieU26PkV4O6rqgtZMT05I=; b=kR1S9b0xVghuNhih0RY6ckd6sl5vht9SMKx6ct0THm60HK2tkJVIGvEH6TnneCNSLt Czif0nlWvlBsRhZTLpEM4OOe7nuqaNUyDZYbkyoGELFW5NLVJQ06xWonL2leZYu5B4TW G1lkoLz4d0v7uISQcwcWBrF6zpivbdioQMLoemrkmzoU0H8Rm/T6RWE9+TsRs/6xyHlO hbXdflQE+sVHkJkIRdtawSj1qg0Dx2y2BMMFGG0DiebuzBMIeb43hka31Gcmcpqs3RdQ BI8Z4g/c1n/AT4Cv0/N6DrahdvARZIytcItQVJ5fR8fWuxYACr8ee8BVcT0jKC3xPJXg kEjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707773510; x=1708378310; h=cc:to:from:subject:mime-version:message-id:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=eNLzwhDxpGsG0xXWUreD5zieU26PkV4O6rqgtZMT05I=; b=izJJj6h5Ntos5EMP7XesYJr4mqq0iTnyrlTniE2+plxY4jbwESUJZaGNMtcCBvLbHR EreRjYUjlZweLku/5ic441CbYLqfuKs64OJCe+iHFsgPsnnXZHtJV8IazXW7TrhqJ3sJ miL5eqMt3Xk7KnIvcAC1PZgDHRhDAt/T/19xS9tJw2hvLhUPpgei2w4hRKWIRQVSOdmo 8nV0EGxrUlnpOpquU2OtwecQeoLWq8zzAR5ye46+pp2ukc8PW8BdR0tKRA5pB4WwLo0e NIlD207X7rXVUYJaGNPlletrHLunMs8R6UTMViOljYy98623sbTM6fU4Z9kT17okQyO5 zhWg== X-Forwarded-Encrypted: i=1; AJvYcCUG1z0gCiGTCzEMi+POEiK7h8/LOkF2G1Ta+asvM6fXVigBJVpFv1yzuuO2pqcVr4ls5Xsx0qLo7uu83OSqXSpvGTHaVlr8i5WXCg== X-Gm-Message-State: AOJu0YwNvF5B1Hm/lns5tvWcI5pLlg/+zBS71UfDdvFHKPMnwV+YfE4U pXglJCFtluxWTZd8cv8YmwdXHHK1ZEc5RMpFaFJbl5/JaNfUb3pFuyJNNjmaYOOW9LWEmOJEgbL apH5p0swO9cDugw== X-Google-Smtp-Source: AGHT+IF9alaAHgJwNReX0hvs4exxyVhwm4cmM3z4eyrywKx2dW6rYYZY38FjIw40qMMnsR4IjK0GJApBbjhUT1k= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:496d:5de1:a404:8bee]) (user=saravanak job=sendgmr) by 2002:a25:c402:0:b0:dcb:fb69:eadc with SMTP id u2-20020a25c402000000b00dcbfb69eadcmr65722ybf.6.1707773510116; Mon, 12 Feb 2024 13:31:50 -0800 (PST) Date: Mon, 12 Feb 2024 13:31:41 -0800 Message-Id: <20240212213147.489377-1-saravanak@google.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.43.0.687.g38aa6559b0-goog Subject: [PATCH v2 0/4] Add post-init-supplier binding to improve suspend/resume stability From: Saravana Kannan To: Saravana Kannan , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , "Rafael J. Wysocki" , Ard Biesheuvel , Frank Rowand , Len Brown , Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus Cc: kernel-team@android.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-efi@vger.kernel.org, linux-acpi@vger.kernel.org Content-Type: text/plain; charset="UTF-8" This patch series adds a "post-init-supplier" device tree binding that can be used to break dependency cycles in device tree and enforce a more determinstic probe/suspend/resume order. This will also improve the stability of global async probing and async suspend/resume and allow us to enable them more easily. Yet another step away from playing initcall chicken with probing and step towards fully async probing and suspend/resume. Patch 3 (the binding docunentation) provide a lot more details and examples. v1->v2: - Addressed Documentation/commit text errors pointed out by Rob - Reordered MAINTAINERS chunk as pointed out by Krzysztof Saravana Kannan (4): driver core: Adds flags param to fwnode_link_add() driver core: Add FWLINK_FLAG_IGNORE to completely ignore a fwnode link dt-bindings: Add post-init-supplier property of: property: fw_devlink: Add support for "post-init-supplier" property .../bindings/post-init-supplier.yaml | 101 ++++++++++++++++++ MAINTAINERS | 13 +-- drivers/base/core.c | 14 ++- drivers/firmware/efi/sysfb_efi.c | 2 +- drivers/of/property.c | 17 ++- include/linux/fwnode.h | 5 +- 6 files changed, 138 insertions(+), 14 deletions(-) create mode 100644 Documentation/devicetree/bindings/post-init-supplier.yaml -- 2.43.0.687.g38aa6559b0-goog