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Thu, 01 Oct 2026 02:21:26 -0700 (PDT) X-Received: by 2002:a05:620a:6506:b0:936:2f59:dfe4 with SMTP id af79cd13be357-93ca9418c15mr693562285a.0.1790846485939; Thu, 01 Oct 2026 02:21:25 -0700 (PDT) Received: from [192.168.202.12] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c2e31dd9fbfsm117573566b.71.2026.10.01.02.21.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 01 Oct 2026 02:21:25 -0700 (PDT) Message-ID: <9fbbbb0c-372c-4e60-88c8-13c11a4c3599@oss.qualcomm.com> Date: Thu, 1 Oct 2026 11:21:22 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/3] MSM8917/MSM8937/MSM8953 fix prng To: =?UTF-8?B?QmFybmFiw6FzIEN6w6ltw6Fu?= , Bjorn Andersson , Konrad Dybcio , Abel Vesa , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stephan Gerhold , =?UTF-8?Q?Otto_Pfl=C3=BCger?= , Dang Huynh , Dmitry Baryshkov , Luca Weiss , Vladimir Lypak Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20261001-prng-fix-v1-0-72f924527465@mainlining.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261001-prng-fix-v1-0-72f924527465@mainlining.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDAxMDAzNyBTYWx0ZWRfXyMvzyZ+Inrww 16WRrNzh+nxJafSy8UT4LQ16o2ZhWEz/xZMkTnI02hk9wETbLeemxvW2XP2uWjLZwm6b6YlSaeX WlzKjoiGXpNrA/17bf//1768YfaCamscbHm4fvwkqmqPGFaQvy6q87LWroo/4lGpdEa0ucZ+37J scPwpWhAZTKIN3d2CydtVHmd0v6G2isGj8Zshlyc34qvatsgfJnSht+Bl/ozgzYcmntyFhCNsjL y7gU9skAEIShoelv37E3YFU+g5RRili9DZnOVJwhmaqIJABDE5rtFNHoXSoj9Ekk4SnHX80602o P4W/GGJghMwU1hzg/Ni/OS2OBT3HMNSRpc3S3a4uYH/JY0CXTQmqjAQs9VMQLBevRHbzCBU5/t9 UWnxG+/3TvOVOWWHYhYpa0dUpswSvoUNVxQksdVc5N4GWeuXjySttna6N9HHUtiMopUxFBn/lrU 1I41C0ZJliLRA72353w== X-Proofpoint-GUID: -daWkDM9VE93nYN3TBsSqRFDgDSlMb3y X-Proofpoint-Spam-Info: AW1haW4tMjYxMDAxMDAzNyBTYWx0ZWRfX52KzpTQqlN2Q 4iMLhofqYegoW4iWXKQ+gJvDfvZPjeksahMRP0ApVqeWJXnD6UdZzU11ym4816IE5UuKjYdlDvg uB6bpnod860iF6gxgYCwm+Oc5w99A4M= X-Authority-Analysis: v=2.4 cv=S51MU4sP c=1 sm=1 tr=0 ts=6abe2617 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=OuZLqq7tAAAA:8 a=EUspDBNiAAAA:8 a=OBZ-G_CF7z2MtCSAfMkA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=zZCYzV9kfG8A:10 a=bTQJ7kPSJx9SKPbeHEYW:22 a=AKGiAy9iJ-JzxKVHQNES:22 X-Proofpoint-ORIG-GUID: -daWkDM9VE93nYN3TBsSqRFDgDSlMb3y X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-01_03,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 lowpriorityscore=0 spamscore=0 adultscore=0 bulkscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610010037 On 10/1/26 7:51 AM, Barnabás Czémán wrote: > On MSM8917/MSM8937/MSM8953 HW QRNG is configured by TZ. > qcom-rng driver will not have access to the configuration registers. > Change the compatible to qcom,prng-ee for skip the initialization sequence. > > Compatbile changes are fixing this issue: > Call trace: > qcom_rng_init+0x6c/0xe8 [qcom_rng] (P) > crypto_create_tfm_node+0x154/0x198 > crypto_alloc_tfm_node+0xa4/0x1b4 > crypto_alloc_rng+0x34/0x48 > rng_bind+0x60/0xa8 [algif_rng] > alg_bind+0x15c/0x1f4 [af_alg] > __arm64_sys_bind+0xb8/0x120 > invoke_syscall+0x6c/0x11c > el0_svc_common+0x98/0xe8 > do_el0_svc+0x2c/0x3c > el0_svc+0x40/0x9c > el0t_64_sync_handler+0x88/0x134 > el0t_64_sync+0x1a0/0x1a4 > > Signed-off-by: Barnabás Czémán > --- Reviewed-by: Konrad Dybcio Konrad