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X-OriginatorOrg: foss.st.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Nov 2025 09:32:05.9784 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6bd13790-f53d-4708-0f69-08de1d1759c3 X-MS-Exchange-CrossTenant-Id: 75e027c9-20d5-47d5-b82f-77d7cd041e8f X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=75e027c9-20d5-47d5-b82f-77d7cd041e8f;Ip=[164.130.1.60];Helo=[smtpO365.st.com] X-MS-Exchange-CrossTenant-AuthSource: AMS1EPF00000048.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM7PR10MB3811 X-Authority-Analysis: v=2.4 cv=K+sv3iWI c=1 sm=1 tr=0 ts=690c6b18 cx=c_pps a=TZl03fqgByJezl61SFqjKg==:117 a=uCuRqK4WZKO1kjFMGfU4lQ==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=Wpbxt3t0qq0A:10 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s63m1ICgrNkA:10 a=KrXZwBdWH7kA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=8b9GpE9nAAAA:8 a=Qt6CvwFM3zD-zW8HttkA:9 a=QEXdDO2ut3YA:10 a=T3LWEMljR5ZiDmsYVIUa:22 a=cPQSjfK2_nFv0Q5t_7PE:22 X-Proofpoint-ORIG-GUID: LKiyMUiLTx_JiqqZam_MZ06nzBO_YZKc X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTA2MDA3NiBTYWx0ZWRfX+HqBTIvdI8dZ v/edLRbyLRcpVkUbqCoFBvKCPByldbHUnyuP+fpMO5OSOwC2/acPn8WnvDYBaqfDxzwUkrZsa2n GP/v5I2tLrsxuXaT6RdaaoluchSkXOSBshu+YbqRm1cblEZIkOUUzIGeNLjG4ashAwqfPT+Kxdb kxmlPRe/zzEuYGr8t4/cxyPLa4N9nSKPnHvZWt2+NZ20zSa6Ztp++3YpcZb9BbGiQlaN0EZmpq2 AygkpZa5QL9x2i2GYWXSQG07bv7u6TXjYc4K/VrLawvbWL9q9u356LQWn8Gdk5CM8mUoPfW8QTv JKtCIqpL3FjyNX4suPE6u1+qKMYPUybI3yBWZZ/870+d1O/NJAqtWpb53Jq/2KE7UJmhyFL+vMi MxYC7IRJlR01oX45+YItxKsbnsIwqQ== X-Proofpoint-GUID: LKiyMUiLTx_JiqqZam_MZ06nzBO_YZKc X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-06_02,2025-11-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 clxscore=1011 suspectscore=0 impostorscore=0 phishscore=0 lowpriorityscore=0 bulkscore=0 adultscore=0 priorityscore=1501 spamscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511060076 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251106_013225_015012_BA236FC0 X-CRM114-Status: GOOD ( 10.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The STM32MP21x platforms have a slightly different RIFSC. Add support for these platforms. Also, the RIF is a complex firewall framework which can be tricky to debug. To facilitate the latter, add a debugfs entry that can be used to display the whole RIFSC firewall configuration at runtime. Signed-off-by: Gatien Chevallier --- Changes in v2: - Added Conor tag on bindings - Fixed coccinelle warning by using str_enabled_disabled() when applicable - Link to v1: https://lore.kernel.org/r/20251104-rifsc_debugfs-v1-0-7ebdfbf8d33f@foss.st.com --- Gatien Chevallier (3): dt-bindings: bus: add stm32mp21 RIFSC compatible arm64: dts: st: set RIFSC as an access controller on stm32mp21x platforms bus: rifsc: add debugfs entry to dump the firewall configuration .../bindings/bus/st,stm32mp25-rifsc.yaml | 8 +- arch/arm64/boot/dts/st/stm32mp211.dtsi | 4 +- drivers/bus/stm32_rifsc.c | 597 ++++++++++++++++++++- 3 files changed, 602 insertions(+), 7 deletions(-) --- base-commit: 6146a0f1dfae5d37442a9ddcba012add260bceb0 change-id: 20251104-rifsc_debugfs-5053ea033ce3 Best regards, -- Gatien Chevallier