Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates
 216.228.117.161 as permitted sender) receiver=protection.outlook.com;
 client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C
From:   Kartik <kkartik@nvidia.com>
To:     <thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
        <kkartik@nvidia.com>, <pshete@nvidia.com>, <arnd@arndb.de>,
        <skamble@nvidia.com>, <windhl@126.com>,
        <linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH] soc/tegra: fuse: Remove nvmem root only access
Date:   Tue, 17 Jan 2023 14:00:55 +0530
Message-ID: <1673944255-8041-1-git-send-email-kkartik@nvidia.com>
MIME-Version: 1.0
Content-Type: text/plain
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jan 2023 08:31:19.2067
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: aee484da-eea0-46a8-4869-08daf8653529
X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com]
X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT046.eop-nam11.prod.protection.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB6411
X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO,
        RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE
        autolearn=no autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

To read fuse values, various "non-root" userspace applications require
access to nvmem binary interface.

Remove root only access for nvmem userspace binary interface.

Signed-off-by: Kartik <kkartik@nvidia.com>
---
 drivers/soc/tegra/fuse/fuse-tegra.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index f02953f793e9..d7a37f5d4527 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2013-2022, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2013-2023, NVIDIA CORPORATION.  All rights reserved.
  */
 
 #include <linux/clk.h>
@@ -166,7 +166,7 @@ static int tegra_fuse_probe(struct platform_device *pdev)
 	nvmem.nkeepout = fuse->soc->num_keepouts;
 	nvmem.type = NVMEM_TYPE_OTP;
 	nvmem.read_only = true;
-	nvmem.root_only = true;
+	nvmem.root_only = false;
 	nvmem.reg_read = tegra_fuse_read;
 	nvmem.size = fuse->soc->info->size;
 	nvmem.word_size = 4;
-- 
2.34.1