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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ba454d1c38csm321047866b.41.2026.04.20.01.35.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 20 Apr 2026 01:35:54 -0700 (PDT) Message-ID: <20691e21-bf7a-42af-afcf-7d6e75308e9d@oss.qualcomm.com> Date: Mon, 20 Apr 2026 10:35:52 +0200 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 v3 1/4] soc: qcom: rpmh: Add support to read back resource settings To: Kamal Wadhwa , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Vinod Koul Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Maulik Shah References: <20260407-read-rpmh-v3-v3-0-34079f92691c@oss.qualcomm.com> <20260407-read-rpmh-v3-v3-1-34079f92691c@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260407-read-rpmh-v3-v3-1-34079f92691c@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDIwMDA4MiBTYWx0ZWRfX4e34eukFmbQY MzW2Qq44x45U0XkR58UtYTekbMxvzSfVEWbNg+7nlDwvndZywbm7zoJ7V7+BWJZ08dAArQA8uA/ Jj7pnxa0zzN1LmSJs5BMmOv/yjVoCftUCllWEg+6UawGpLUj3pcmTFV3QirQgc2n3NGFftVmxER r7tmjvmhFh1cjCjxgHQ4qqarL76KNCQQ6pTvbGI16hq5E+qdkVynCUsuYV6gcykkY650Eqz0fUx Eby9wYgz7mrorXcrrHuPmCMpQiYP/DviWQIYsX+Avum2X/Qq3g5TbzlgZYLYfssdrOTnbexTs/+ KUTu3KzTrihM8GbJrTgj88SUmFQ/BS1dcz5dHJGuFdZDlgVtx5IL59wcK5wBmS8VcvPMSkEXhKF timTNenmF/OeUblCU2rkblWdFQqAJXsMOamy3Aw3Nnvf7ofMe6qWRByCRn1u08asXo/bJXB9sLD UGjxgo/Y1jCOBENV33A== X-Proofpoint-ORIG-GUID: Up9694iepsFyQxRtxIr0k-fym0cAJjNc X-Proofpoint-GUID: Up9694iepsFyQxRtxIr0k-fym0cAJjNc X-Authority-Analysis: v=2.4 cv=L+ItheT8 c=1 sm=1 tr=0 ts=69e5e56c cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=m32t04jroMyMv4Ds6yEA:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-20_01,2026-04-17_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 adultscore=0 lowpriorityscore=0 suspectscore=0 clxscore=1015 impostorscore=0 malwarescore=0 spamscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604070000 definitions=main-2604200082 On 4/7/26 6:43 AM, Kamal Wadhwa wrote: > From: Maulik Shah > > All rpmh_*() APIs so far have supported placing votes for various resource > settings but the H/W also have option to read resource settings. > > Add new rpmh_read() API to allow clients to read back resource setting > from H/W. This will be useful for clients like regulators, which currently > don't have a way to know the settings applied during bootloader stage. > > Signed-off-by: Maulik Shah > Signed-off-by: Kamal Wadhwa > --- Reviewed-by: Konrad Dybcio Konrad