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 X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1FDD5C43141 for ; Thu, 28 Jun 2018 20:43:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D275F24C9E for ; Thu, 28 Jun 2018 20:43:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D275F24C9E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754753AbeF1Unt (ORCPT ); Thu, 28 Jun 2018 16:43:49 -0400 Received: from mail-yb0-f193.google.com ([209.85.213.193]:37984 "EHLO mail-yb0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753637AbeF1Uns (ORCPT ); Thu, 28 Jun 2018 16:43:48 -0400 Received: by mail-yb0-f193.google.com with SMTP id f12-v6so2533925ybp.5; Thu, 28 Jun 2018 13:43:48 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=MBw/TUiTzAGrYRjToKJCmT0iIojVoEoD7cDXN8AgjeM=; b=G4O9jLbsOakH7IbCPfH0eo0xBFz19svkalP+GbyypB4tYoijzwNSR7Jndc9YS2xn1l glPOuJEd/t00LVJj3dtycwNdDz0mcoxh3NTpyfy2m357ruBYsIryOPVe8USlnVXR6jO3 nwllldTT36SLaiX1NkvzcOkf0gxuheroGEJMF2o34Urya1I0vyJ8r9eSqByNPH1r7sc/ 9Fm+T1u7K/9CMOKpK/c8g6gg0mvuJbECMAv7BqGwaEQFPZ60T1T+EpNL6NOT3HBDtDq4 L9bXSwChNzHd8yZkZrIkeatJs9WSA5Pn4hN2bU1B4eiRHDZpAB4LfJNAgYUDMeNtI/BY BDRQ== X-Gm-Message-State: APt69E2FqFQbP6GX2GaZkFzGOoi80eh/SJWt+CVzB1IpX+HC8YQYnPJQ cbo7WxVHtOox4AKl2rfl6A== X-Google-Smtp-Source: ADUXVKJmKl8Gg9rNXsxCoRB/JGRirF3V9rcZTLumzmEvuauj4CGRKQ/AvTT9JgUlbS+7/nFAMdFE1A== X-Received: by 2002:a5b:451:: with SMTP id s17-v6mr5987573ybp.310.1530218627636; Thu, 28 Jun 2018 13:43:47 -0700 (PDT) Received: from localhost.localdomain (24-223-123-72.static.usa-companies.net. [24.223.123.72]) by smtp.googlemail.com with ESMTPSA id o7-v6sm427913ywi.32.2018.06.28.13.43.45 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 28 Jun 2018 13:43:46 -0700 (PDT) From: Rob Herring To: Greg Kroah-Hartman , Linus Walleij , Alexander Graf , Bjorn Andersson , "Rafael J. Wysocki" , Kevin Hilman , Ulf Hansson , Joerg Roedel , Robin Murphy , Mark Brown , Frank Rowand Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, boot-architecture@lists.linaro.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 0/6] Make deferring probe forever optional Date: Thu, 28 Jun 2018 14:43:38 -0600 Message-Id: <20180628204344.13973-1-robh@kernel.org> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series came out of a discussion on the ARM boot-architecture list[1] about DT forwards and backwards compatibility issues. There are issues with newer DTs breaking on older, stable kernels. Some of these are difficult to solve, but cases of optional devices not having kernel support should be solvable. I tested this on a RPi3 B with the pinctrl driver forced off. With this change, the MMC/SD and UART drivers can function without the pinctrl driver. I left the dts change out this time. v2 of this series can be found here[2]. Rob [1] https://lists.linaro.org/pipermail/boot-architecture/2018-April/000466.html [2] https://lore.kernel.org/patchwork/project/lkml/list/?series=347413 Rob Herring (6): driver core: allow stopping deferred probe after init dt-bindings: pinctrl: add a 'pinctrl-use-default' property pinctrl: Support stopping deferred probe after initcalls iommu: Stop deferring probe at end of initcalls iommu: Remove IOMMU_OF_DECLARE PM / Domains: Stop deferring probe at the end of initcall .../admin-guide/kernel-parameters.txt | 9 +++ .../bindings/pinctrl/pinctrl-bindings.txt | 6 ++ drivers/base/dd.c | 57 +++++++++++++++++++ drivers/base/power/domain.c | 2 +- drivers/iommu/arm-smmu-v3.c | 2 - drivers/iommu/arm-smmu.c | 7 --- drivers/iommu/exynos-iommu.c | 2 - drivers/iommu/ipmmu-vmsa.c | 3 - drivers/iommu/msm_iommu.c | 2 - drivers/iommu/of_iommu.c | 21 +------ drivers/iommu/qcom_iommu.c | 2 - drivers/iommu/rockchip-iommu.c | 2 - drivers/pinctrl/devicetree.c | 15 +++-- include/asm-generic/vmlinux.lds.h | 2 - include/linux/device.h | 2 + include/linux/of_iommu.h | 4 -- 16 files changed, 88 insertions(+), 50 deletions(-) -- 2.17.1