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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-596bf8b75a2sm3601311e87.45.2025.12.01.03.21.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 01 Dec 2025 03:21:19 -0800 (PST) Message-ID: <1ba66817-42e2-4c63-8a94-d2e5c9cb8c34@oss.qualcomm.com> Date: Mon, 1 Dec 2025 12:21:16 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] remoteproc: qcom_q6v5_wcss: use optional reset for wcss_q6_bcr_reset To: Alexandru Gagniuc , andersson@kernel.org, mathieu.poirier@linaro.org, linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, Philipp Zabel Cc: linux-kernel@vger.kernel.org References: <20251129013207.3981517-1-mr.nuke.me@gmail.com> <20251129013207.3981517-2-mr.nuke.me@gmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20251129013207.3981517-2-mr.nuke.me@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=LewxKzfi c=1 sm=1 tr=0 ts=692d7a31 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=pGLkceISAAAA:8 a=LjDgd8hjRp8BARONj68A:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-GUID: IHkxC1EG2NE6sj6awdRX2DGUbsW2_Daw X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjAxMDA5MiBTYWx0ZWRfX0JfsrvvsSMNY 0AhxeltQ2xycbtDQg4gpTsfgXONcOXJhNKCvT787r3GJ6V5dKuUgMeNjBrWqLMmQ78+YHZH5PG/ ofO/3zCZpNljzlH+eR8yzxkUep2Wn9WnjeJovCZSyZKu8CyDlLtHIdmFe+2JAXjVnLh+EUQ8Di0 nfX/W1l4WS4yfTvw9Ma25wy93mmFmSUNLBBR5e8SdgJJsvL7k3EMYqxtBDnwSJ4HmX0XlgKO4Z1 021S/4hArjKmD9QIQ0Yw+h1fmeNmC0KzRPKawawyOAfyP/mWD8mpDm3YlzodI5US4/1c6v27teZ BzPPw7RwwytkQ5be5Mb0RYCk89pMxb2jaCdxEHgfnOKcUGLrhSC5Dw/fDIiTKfHW/lkS4PmTzEZ 0fAdx02RSR53bkbvxlUBbQc4mgo5SA== X-Proofpoint-ORIG-GUID: IHkxC1EG2NE6sj6awdRX2DGUbsW2_Daw 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=2025-11-28_08,2025-11-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1015 suspectscore=0 bulkscore=0 malwarescore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2512010092 On 11/29/25 2:32 AM, Alexandru Gagniuc wrote: > The "wcss_q6_bcr_reset" is not used on IPQ8074, and IPQ6018. Use > devm_reset_control_get_optional_exclusive() for this reset so that > probe() does not fail on platforms where it is not used. > > Signed-off-by: Alexandru Gagniuc > --- This reset is not even used (or documented anywhere).. the closest I can find is "wcss_q6_reset" in qcom,q6v5.txt, initially documented in: Fixes: 3a3d4163e0bf ("remoteproc: qcom: Introduce Hexagon V5 based WCSS driver") which claims it was made for.. IPQ8074 Peeking at the GCC driver, this reset is most likely present as GCC_WCSS_Q6_BCR Konrad