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Signed-off-by: Michael Auchter --- drivers/of/unittest-data/Makefile | 1 + drivers/of/unittest-data/overlay_16.dts | 26 +++++++++++++++++++++++++ drivers/of/unittest.c | 16 +++++++++++++++ 3 files changed, 43 insertions(+) create mode 100644 drivers/of/unittest-data/overlay_16.dts diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile index 009f4045c8e4..91a1ebbc451b 100644 --- a/drivers/of/unittest-data/Makefile +++ b/drivers/of/unittest-data/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_OF_OVERLAY) += overlay.dtb.o \ overlay_12.dtb.o \ overlay_13.dtb.o \ overlay_15.dtb.o \ + overlay_16.dtb.o \ overlay_bad_add_dup_node.dtb.o \ overlay_bad_add_dup_prop.dtb.o \ overlay_bad_phandle.dtb.o \ diff --git a/drivers/of/unittest-data/overlay_16.dts b/drivers/of/unittest-data/overlay_16.dts new file mode 100644 index 000000000000..eda206e2ebca --- /dev/null +++ b/drivers/of/unittest-data/overlay_16.dts @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 +/dts-v1/; +/plugin/; + +/* overlay_16 - device links */ + +&unittest_test_bus { + + /* suppress DTC warning */ + #address-cells = <1>; + #size-cells = <0>; + + unittest16: test-unittest16 { + #clock-cells = <0>; + compatible = "unittest"; + status = "okay"; + reg = <16>; + }; + + test-unittest161 { + compatible = "unittest"; + status = "okay"; + reg = <161>; + clocks = <&unittest16>; + }; +}; diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 5579584758b7..d94dafb3746f 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -2369,6 +2369,18 @@ static void __init of_unittest_overlay_11(void) unittest(ret == 0, "overlay test %d failed; overlay apply\n", 11); } +/* test insertion of an overlay that references another node */ +static void __init of_unittest_overlay_16(void) +{ + int ret; + + /* device should disable */ + ret = of_unittest_apply_revert_overlay_check(16, 16, 0, 1, + PDEV_OVERLAY); + + unittest(ret == 0, "overlay test %d failed; overlay apply\n", 16); +} + #if IS_BUILTIN(CONFIG_I2C) && IS_ENABLED(CONFIG_OF_OVERLAY) struct unittest_i2c_bus_data { @@ -2757,6 +2769,8 @@ static void __init of_unittest_overlay(void) of_unittest_overlay_i2c_cleanup(); #endif + of_unittest_overlay_16(); + of_unittest_overlay_gpio(); of_unittest_destroy_tracked_overlays(); @@ -2812,6 +2826,7 @@ OVERLAY_INFO_EXTERN(overlay_11); OVERLAY_INFO_EXTERN(overlay_12); OVERLAY_INFO_EXTERN(overlay_13); OVERLAY_INFO_EXTERN(overlay_15); +OVERLAY_INFO_EXTERN(overlay_16); OVERLAY_INFO_EXTERN(overlay_gpio_01); OVERLAY_INFO_EXTERN(overlay_gpio_02a); OVERLAY_INFO_EXTERN(overlay_gpio_02b); @@ -2842,6 +2857,7 @@ static struct overlay_info overlays[] = { OVERLAY_INFO(overlay_12, 0), OVERLAY_INFO(overlay_13, 0), OVERLAY_INFO(overlay_15, 0), + OVERLAY_INFO(overlay_16, 0), OVERLAY_INFO(overlay_gpio_01, 0), OVERLAY_INFO(overlay_gpio_02a, 0), OVERLAY_INFO(overlay_gpio_02b, 0), From patchwork Wed Oct 14 19:36:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Auchter X-Patchwork-Id: 1382319 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; 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Wed, 14 Oct 2020 19:36:36 +0000 From: Michael Auchter To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: saravanak@google.com, robh+dt@kernel.org, frowand.list@gmail.com, gregkh@linuxfoundation.org, rafael@kernel.org, Michael Auchter Subject: [RFC PATCH 3/3] of: dynamic: add device links barrier before detach Date: Wed, 14 Oct 2020 14:36:15 -0500 Message-Id: <20201014193615.1045792-4-michael.auchter@ni.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20201014193615.1045792-1-michael.auchter@ni.com> References: <20201014193615.1045792-1-michael.auchter@ni.com> X-Originating-IP: [2605:a601:ab23:3c00:cdda:4935:f7a0:c63c] X-ClientProxiedBy: SN2PR01CA0033.prod.exchangelabs.com (2603:10b6:804:2::43) To SN4PR0401MB3646.namprd04.prod.outlook.com (2603:10b6:803:4b::29) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (2605:a601:ab23:3c00:cdda:4935:f7a0:c63c) by SN2PR01CA0033.prod.exchangelabs.com (2603:10b6:804:2::43) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3477.20 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: ni.com X-MS-Exchange-CrossTenant-Network-Message-Id: ca7fe1ba-ad8a-478d-0f2d-08d870787696 X-MS-Exchange-CrossTenant-AuthSource: SN4PR0401MB3646.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Oct 2020 19:36:36.3006 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 87ba1f9a-44cd-43a6-b008-6fdb45a5204e X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: JXEbv8tifz4GPENBQoHxZz9XPEYER0Ifbzol6NK7sZX/g017pGEzt6tKtnivZltSOjptF/9F0t7UQYq7TggdAw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR04MB3854 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-10-14_11:2020-10-14,2020-10-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_policy_notspam policy=outbound_policy score=30 malwarescore=0 clxscore=1015 suspectscore=0 adultscore=0 lowpriorityscore=0 mlxlogscore=973 impostorscore=0 bulkscore=0 phishscore=0 mlxscore=0 priorityscore=1501 spamscore=0 classifier=spam adjust=30 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2010140135 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Signed-off-by: Michael Auchter --- drivers/of/dynamic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c index 7478bfc8d440..a4e2881524e9 100644 --- a/drivers/of/dynamic.c +++ b/drivers/of/dynamic.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "of_private.h" @@ -688,6 +689,8 @@ void of_changeset_destroy(struct of_changeset *ocs) { struct of_changeset_entry *ce, *cen; + device_links_barrier(); + list_for_each_entry_safe_reverse(ce, cen, &ocs->entries, node) __of_changeset_entry_destroy(ce); }