From patchwork Mon Sep 28 04:09:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 11802787 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 071A1139A for ; Mon, 28 Sep 2020 04:10:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D201223998 for ; Mon, 28 Sep 2020 04:10:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="eTjt/mfp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726396AbgI1EKb (ORCPT ); Mon, 28 Sep 2020 00:10:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725287AbgI1EKb (ORCPT ); Mon, 28 Sep 2020 00:10:31 -0400 Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C10CC0613CE for ; Sun, 27 Sep 2020 21:10:31 -0700 (PDT) Received: by mail-pj1-x102d.google.com with SMTP id b17so2785350pji.1 for ; Sun, 27 Sep 2020 21:10:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=OHdB/lQSZ51PriON1YnzhLSGGjk5yXlBwN7F9gXnLRk=; b=eTjt/mfpH5f2ibLKAUl28AUwGSYqFAPi7JON1aflRzrzYfHYr3oUXd+LnqOBvOmQ4d aSHV3gDOl4id8ASR47jc/kGGabiipe2oao3t+27FsxnQoCJ9aNVqcM9UxmSNlx6A3u4H 9V01syle6eOS3uBo1FbtStxptSJuCZtxet5tY6H6NZcWM02t3toRwMRPNDWKITOYpGk3 vnKCd7m3sHFPseU2hIgQvioWia7sb40QOW4Jf1VXD2DkyELg8nmaqB53biZluWhyepVF s/41CgLhh9pSf6iOgxg19Zag0ThO6g5kR1qN+mRTY7NM5fc5hD8d7sostRutHwIQtXbs ftuA== 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=OHdB/lQSZ51PriON1YnzhLSGGjk5yXlBwN7F9gXnLRk=; b=NQg4rHmQtFLLcbSkjvOT/z3XJ8bWy3LnjqJ0Jyb/h97MV9xDBdUWsDEvDoeeTujqGA 2orqJYjqiNDa8GUOofxCY9ZoYQg1Feg6y9VNQroP7gg0ilL7k9whioS2OT6E9pq/8DGO OQeooBIjcQY3NcmbuwuceLoCezrk8jJsr39XoQ/SAm7EKhd2c0xTsBoD2ol3u2YgvYu7 GzbtwxgohlLWQpryPOCP3/Yx6pJs2DhliynvpQRgdya1gfh3FjBvnkeArelPVi5re07s w5z4cnBilKRmAqbNlMI094wiYXLLGBBPVgmRJyFVLSgSs9aJ6C/lshEp4+LXQP84FCPJ 75NQ== X-Gm-Message-State: AOAM532Pq70Wbf1s+nAeVZZKSBUNszK1Euf70W8jwJtrxqfF4yXwj8AA ftzAHua90mgP0W+O+QodTLLX X-Google-Smtp-Source: ABdhPJzzIuqsDYeYYR2zSnPBXcbi35TE22v/zVexAdbo8tvy/P3qVRTqkCHXpekSuL9qWSRYjN+SDQ== X-Received: by 2002:a17:90a:f098:: with SMTP id cn24mr7716592pjb.158.1601266230371; Sun, 27 Sep 2020 21:10:30 -0700 (PDT) Received: from Mani-XPS-13-9360.localdomain ([2409:4072:6003:40df:7c40:5a87:eb86:87b0]) by smtp.gmail.com with ESMTPSA id n21sm8306322pgl.7.2020.09.27.21.10.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Sep 2020 21:10:29 -0700 (PDT) From: Manivannan Sadhasivam To: gregkh@linuxfoundation.org Cc: hemantk@codeaurora.org, bbhatt@codeaurora.org, linux-arm-msm@vger.kernel.org, jhugo@codeaurora.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH v2 00/21] MHI changes for v5.10 Date: Mon, 28 Sep 2020 09:39:30 +0530 Message-Id: <20200928040951.18207-1-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Hi Greg, Here is the MHI series for v5.10 cycle. Most of the patches are cleanups in the MHI stack. Notable changes are below: * Saving the client device hardware information obtained through the BHI protocol. This information will be exposed through sysfs to make use in the userland applications. * Introduce sysfs entries to read the serial number and OEM PK hash values of the client device obtained from BHI protocol. Relevant API documentation is also added. * Introduce debugfs entries to show MHI states, events, channels, register state etc... to aid debug. * Remove the channel name from MHI device name as the device is not specific to channels. Used generic names instead! * Fix the warning reported by Kbuild bot by using append (+=) Kbuild rule to the mhi/core Makefile. * Introduce APIs to allocate and free MHI controllers. This is done to make sure that the allocated structs are initialized to NULL before passing to the MHI core. * Remove the requirement to have a dedicated IRQ for each event ring. The MHI controllers can now use a single IRQ for all event rings. * Remove the auto-start option for MHI channels. This is done to avoid receiving spurious uplink from MHI client device when the client driver is not up. The corresponding qrtr change is also included with Dave's ACK. Please consider merging! Thanks, Mani Changes in v2: * Clubbed both series (take one and two) onto a single one * Used dev_groups to manage sysfs attributes * Merged the debugfs fix patch with the debugfs patch * Dropped MAX_MTU patch for now Bhaumik Bhatt (12): bus: mhi: core: Remove double occurrence for mhi_ctrl_ev_task() declaration bus: mhi: core: Abort suspends due to outgoing pending packets bus: mhi: core: Use helper API to trigger a non-blocking host resume bus: mhi: core: Trigger host resume if suspended during mhi_device_get() bus: mhi: core: Use generic name field for an MHI device bus: mhi: core: Introduce helper function to check device state bus: mhi: core: Introduce counters to track MHI device state transitions bus: mhi: core: Read and save device hardware information from BHI bus: mhi: core: Introduce APIs to allocate and free the MHI controller bus: mhi: Fix entries based on Kconfig coding style bus: mhi: core: Introduce debugfs entries for MHI bus: mhi: core: Introduce sysfs entries for MHI Clark Williams (1): bus: mhi: Remove include of rwlock_types.h Hemant Kumar (1): bus: mhi: core: Add const qualifier to MHI config information Loic Poulain (5): bus: mhi: core: Allow shared IRQ for event rings bus: mhi: Remove unused nr_irqs_req variable bus: mhi: debugfs: Print channel context read-pointer bus: mhi: Remove auto-start option net: qrtr: Start MHI channels during init Manivannan Sadhasivam (1): bus: mhi: core: Fix the building of MHI module Randy Dunlap (1): bus: mhi: fix doubled words and struct image_info kernel-doc Documentation/ABI/stable/sysfs-bus-mhi | 21 ++ MAINTAINERS | 1 + drivers/bus/mhi/Kconfig | 20 +- drivers/bus/mhi/core/Makefile | 3 +- drivers/bus/mhi/core/boot.c | 17 +- drivers/bus/mhi/core/debugfs.c | 411 +++++++++++++++++++++++++ drivers/bus/mhi/core/init.c | 96 ++++-- drivers/bus/mhi/core/internal.h | 38 ++- drivers/bus/mhi/core/main.c | 27 +- drivers/bus/mhi/core/pm.c | 28 +- include/linux/mhi.h | 53 +++- net/qrtr/mhi.c | 5 + 12 files changed, 644 insertions(+), 76 deletions(-) create mode 100644 Documentation/ABI/stable/sysfs-bus-mhi create mode 100644 drivers/bus/mhi/core/debugfs.c