From patchwork Wed May 27 09:22:58 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jyri Sarha X-Patchwork-Id: 6488391 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EB1789F399 for ; Wed, 27 May 2015 09:23:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3B1A9206D9 for ; Wed, 27 May 2015 09:23:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F15E206DF for ; Wed, 27 May 2015 09:23:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752265AbbE0JXd (ORCPT ); Wed, 27 May 2015 05:23:33 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:33708 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750959AbbE0JXa (ORCPT ); Wed, 27 May 2015 05:23:30 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id t4R9NGl1020791; Wed, 27 May 2015 04:23:16 -0500 Received: from DLEE70.ent.ti.com (dlee70.ent.ti.com [157.170.170.113]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id t4R9NGkO020175; Wed, 27 May 2015 04:23:16 -0500 Received: from dflp32.itg.ti.com (10.64.6.15) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.224.2; Wed, 27 May 2015 04:23:15 -0500 Received: from imryr.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id t4R9N2RG031930; Wed, 27 May 2015 04:23:13 -0500 From: Jyri Sarha To: , , , , , CC: , , , , Jyri Sarha Subject: [PATCH v6 4/7] drm/tilcdc: use pm_runtime_irq_safe() Date: Wed, 27 May 2015 12:22:58 +0300 Message-ID: <8b81cedf6c5a7e93dc3df8284f4bc3cfa139888c.1432718049.git.jsarha@ti.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Tomi Valkeinen tilcdc calls runtime PM get/put functions everywhere. Some of those places will be called in irq context, crashing the driver. As a quick fix, use pm_runtime_irq_safe() for tilcdc. Signed-off-by: Tomi Valkeinen Signed-off-by: Jyri Sarha --- drivers/gpu/drm/tilcdc/tilcdc_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index fcc0508..0f283a3 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -227,6 +227,7 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) DBG("Maximum Pixel Clock Value %dKHz", priv->max_pixelclock); pm_runtime_enable(dev->dev); + pm_runtime_irq_safe(dev->dev); /* Determine LCD IP Version */ pm_runtime_get_sync(dev->dev);