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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-64b91494dd3sm2191576a12.21.2025.12.19.05.43.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 19 Dec 2025 05:43:46 -0800 (PST) Message-ID: Date: Fri, 19 Dec 2025 14:43:44 +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 4/9] arm64: dts: qcom: ipq9574: add wcss remoteproc nodes To: Alexandru Gagniuc , andersson@kernel.org, mathieu.poirier@linaro.org, krzk+dt@kernel.org, Konrad Dybcio , Rob Herring , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20251219043425.888585-1-mr.nuke.me@gmail.com> <20251219043425.888585-4-mr.nuke.me@gmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20251219043425.888585-4-mr.nuke.me@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: 540cb1QXZw74nbpJiIOTVNjB7DP1Vz4X X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjE5MDExNCBTYWx0ZWRfX015QMWWxZt8P Koq4m1ubdVEwYKL/5DxBGWQEJDopRFtmnuhzh+Tdv3/tZkhzfa43WTh6VuqGHunh7zAxEpxxuCk EAJAYwiVRMXmzDw8ZAeL8sydjJB9NW3cbo7SUvP8sqtV9BqtwjnAtx5ct7XOMOnsypy0k6xIEQC AFMT89p04KX/065txvTn3n6gcMdYYDjIpqagFycQ4mc04Qyf54EU8pEt7JXfxewMrojTJ9LL4PC 4L0UlwpxN2uDcSYJPbxlfCnEyNRipMFjB6MmHJMm08WNjiQ5q2a3FIBZ6/hYl3na5ASBg1DkEZT /Ag53MEYxbYw/RJnp3HBb/ss8fNHJTlalt172Q+xqtpNevLSwB1X4QhmuS/T+j0+4llgrdhydgQ 0Qt+j04/6sl2q38D3Fej4RG5nhqeu9otyc9wY4+Dnk/yVaiFa1hjPR1+u6tu7c4gBDlAEIcbk6V ApiIwXF3ykpyennQEEA== X-Proofpoint-ORIG-GUID: 540cb1QXZw74nbpJiIOTVNjB7DP1Vz4X X-Authority-Analysis: v=2.4 cv=EabFgfmC c=1 sm=1 tr=0 ts=69455694 cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=pGLkceISAAAA:8 a=a8igmC5W8dcvx-CyMYMA:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 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=2025-12-19_04,2025-12-17_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 phishscore=0 malwarescore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 suspectscore=0 priorityscore=1501 adultscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2512190114 On 12/19/25 5:34 AM, Alexandru Gagniuc wrote: > The WCSS remoteproc is typically used by ath11k to load wifi firmware > to the Hexagon q6 procesor. Add the nodes required to bring up this > processor. > > Signed-off-by: Alexandru Gagniuc > --- [...] > + q6v5_wcss: remoteproc@cd00000 { > + compatible = "qcom,ipq9574-wcss-pil"; > + reg = <0x0cd00000 0x4040>, > + <0x004ab000 0x20>; > + reg-names = "qdsp6", > + "rmb"; Hmm.. this "rmb" region is really: 0x0 PS_HOLD (write here to reset the chip, if the TZ lets you..) .. 0x8 SSCAON_CONFIG (essentially a syscon which you write to from your driver) 0xc SSCAON_STATUS (same) But we've been describing things this way for years.. I don't know if it's worth changing, especially since the rproc driver really assumes this to be the case Konrad