From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932107AbdCBQAg (ORCPT ); Thu, 2 Mar 2017 11:00:36 -0500 Received: from mga09.intel.com ([134.134.136.24]:3336 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754404AbdCBQAb (ORCPT ); Thu, 2 Mar 2017 11:00:31 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.35,232,1484035200"; d="scan'208";a="1137043282" From: matthew.gerlach@linux.intel.com To: atull@opensource.altera.com, moritz.fischer@ettus.com, linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, robh+dt@kernel.org, mark.rutland@arm.com Subject: [PATCH v4 1/4] fpga: add config complete timeout Date: Thu, 2 Mar 2017 07:57:09 -0800 Message-Id: <1488470232-20412-2-git-send-email-matthew.gerlach@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1488470232-20412-1-git-send-email-matthew.gerlach@linux.intel.com> References: <1488470232-20412-1-git-send-email-matthew.gerlach@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alan Tull Adding timeout for maximum allowed time for FPGA to go to operating mode after a FPGA region has been programmed. Signed-off-by: Alan Tull --- drivers/fpga/fpga-region.c | 3 +++ include/linux/fpga/fpga-mgr.h | 3 +++ 2 files changed, 6 insertions(+) diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c index 3222fdb..28401cb 100644 --- a/drivers/fpga/fpga-region.c +++ b/drivers/fpga/fpga-region.c @@ -381,6 +381,9 @@ static int fpga_region_notify_pre_apply(struct fpga_region *region, of_property_read_u32(nd->overlay, "region-freeze-timeout-us", &info->disable_timeout_us); + of_property_read_u32(nd->overlay, "config-complete-timeout-us", + &info->config_complete_timeout_us); + /* If FPGA was externally programmed, don't specify firmware */ if ((info->flags & FPGA_MGR_EXTERNAL_CONFIG) && firmware_name) { pr_err("error: specified firmware and external-fpga-config"); diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h index 57beb5d..fd3f083 100644 --- a/include/linux/fpga/fpga-mgr.h +++ b/include/linux/fpga/fpga-mgr.h @@ -76,11 +76,14 @@ enum fpga_mgr_states { * @flags: boolean flags as defined above * @enable_timeout_us: maximum time to enable traffic through bridge (uSec) * @disable_timeout_us: maximum time to disable traffic through bridge (uSec) + * @config_complete_timeout_us: maximum time for FPGA to switch to operating + * status in the write_complete op. */ struct fpga_image_info { u32 flags; u32 enable_timeout_us; u32 disable_timeout_us; + u32 config_complete_timeout_us; }; /** -- 2.7.4