From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: "Barnabás Czémán" <barnabas.czeman@mainlining.org>,
"Bjorn Andersson" <andersson@kernel.org>,
"Konrad Dybcio" <konradybcio@kernel.org>,
"Abel Vesa" <abelvesa@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Stephan Gerhold" <stephan.gerhold@linaro.org>,
"Otto Pflüger" <otto.pflueger@abscue.de>,
"Dang Huynh" <danct12@riseup.net>,
"Dmitry Baryshkov" <dmitry.baryshkov@oss.qualcomm.com>,
"Luca Weiss" <luca@lucaweiss.eu>,
"Vladimir Lypak" <vladimir.lypak@gmail.com>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/3] MSM8917/MSM8937/MSM8953 fix prng
Date: Thu, 1 Oct 2026 11:21:22 +0200 [thread overview]
Message-ID: <9fbbbb0c-372c-4e60-88c8-13c11a4c3599@oss.qualcomm.com> (raw)
In-Reply-To: <20261001-prng-fix-v1-0-72f924527465@mainlining.org>
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 <barnabas.czeman@mainlining.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
prev parent reply other threads:[~2026-10-01 9:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-01 5:51 Barnabás Czémán
2026-10-01 5:51 ` [PATCH 1/3] arm64: dts: qcom: msm8917: change prng compatible Barnabás Czémán
2026-10-01 5:51 ` [PATCH 2/3] arm64: dts: qcom: msm8937: " Barnabás Czémán
2026-10-01 5:51 ` [PATCH 3/3] arm64: dts: qcom: msm8953: " Barnabás Czémán
2026-10-01 9:21 ` Konrad Dybcio [this message]
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