From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S945720AbcJSPwt (ORCPT ); Wed, 19 Oct 2016 11:52:49 -0400 Received: from mailapp02.imgtec.com ([217.156.133.132]:45333 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S941358AbcJSPwm (ORCPT ); Wed, 19 Oct 2016 11:52:42 -0400 From: Matt Redfearn To: Bjorn Andersson , Ohad Ben-Cohen CC: , , "Matt Redfearn" Subject: [PATCH v3 0/2] remoteproc: Add sysfs interface Date: Wed, 19 Oct 2016 13:05:46 +0100 Message-ID: <1476878748-32097-1-git-send-email-matt.redfearn@imgtec.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.150.130.83] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It is often desireable to boot a remote processor with different firmware files, depending on the needs of the system at a particular time. This series adds a sysfs interface to the remoteproc core, exposing interfaces to manipulate the remote processor. One interface is the "state" file which performs the same function as the one in debugfs (which is removed later in the series). The other is a "firmware" file which allows retrieval of the name of the running firmware, and allows a new firmware to be loaded when written, as long as the remote processor is currently stopped. Some groundwork must be laid first, changing the storage mechanism of the firmware name such that it can be rewritten easily, then that is wired up to the new sysfs interface. This series is based on v4.9-rc1 Changes in v3: Drop call to rproc_add_virtio_devices from sysfs firmware_store Use strcspn to find firmware name length Explicit indexes for state strings Changes in v2: Have firmware_store perform the necessary steps inline. Use sysfs_streq when dealing with writes to sysfs files Matt Redfearn (2): remoteproc: Add a sysfs interface for firmware and state remoteproc: debugfs: Remove state entry which is duplicated is sysfs Documentation/ABI/testing/sysfs-class-remoteproc | 50 ++++++++ drivers/remoteproc/Makefile | 1 + drivers/remoteproc/remoteproc_core.c | 3 + drivers/remoteproc/remoteproc_debugfs.c | 71 ----------- drivers/remoteproc/remoteproc_internal.h | 5 + drivers/remoteproc/remoteproc_sysfs.c | 151 +++++++++++++++++++++++ 6 files changed, 210 insertions(+), 71 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-class-remoteproc create mode 100644 drivers/remoteproc/remoteproc_sysfs.c -- 2.7.4