From patchwork Mon Mar 28 02:20:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 12793121 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 564CEC433F5 for ; Mon, 28 Mar 2022 02:30:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229902AbiC1CcI (ORCPT ); Sun, 27 Mar 2022 22:32:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35128 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233254AbiC1CcH (ORCPT ); Sun, 27 Mar 2022 22:32:07 -0400 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F9693EB82; Sun, 27 Mar 2022 19:30:28 -0700 (PDT) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id B350B200489; Mon, 28 Mar 2022 04:30:26 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 7B79820043F; Mon, 28 Mar 2022 04:30:26 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 5E2A4183AC96; Mon, 28 Mar 2022 10:30:25 +0800 (+08) From: Shengjiu Wang To: bjorn.andersson@linaro.org, mathieu.poirier@linaro.org Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, shengjiu.wang@gmail.com Subject: [PATCH v2 0/2] remoteproc: core: fix issue for multi-instance Date: Mon, 28 Mar 2022 10:20:10 +0800 Message-Id: <1648434012-16655-1-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Use the rproc->power reference count to handle the multi-instance case, move the state checking for 'stop' and 'detach' under mutex protection, and remove state checking for 'start'. Shengjiu Wang (2): remoteproc: core: Remove state checking before calling rproc_boot() remoteproc: core: Move state checking to remoteproc_core changes in v2: - drop 'remoteproc: core: check rproc->power value before decreasing it' - refine 'remoteproc: core: Remove state checking before changing state' split it to two new patches. drivers/remoteproc/remoteproc_cdev.c | 11 ----------- drivers/remoteproc/remoteproc_core.c | 11 +++++++++++ drivers/remoteproc/remoteproc_sysfs.c | 11 ----------- 3 files changed, 11 insertions(+), 22 deletions(-)