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([2406:b400:f14:c5fb:598d:4fca:aadc:2eb6]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-144ce065314sm1354633c88.14.2026.09.17.21.40.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Sep 2026 21:40:34 -0700 (PDT) Message-ID: <3ddb920b-1d9f-4ec3-98a2-3477f845c145@oss.qualcomm.com> Date: Fri, 18 Sep 2026 10:10:19 +0530 Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 2/2] clk: qcom: Add LPASS VA CSR heartbeat pulse clock To: sarath.ganapathiraju@oss.qualcomm.com, andersson@kernel.org, abelvesa@kernel.org, sboyd@kernel.org, bmasney+clk@redhat.com, jbrunet+clk@baylibre.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, srinivas.kandagatla@oss.qualcomm.com Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260917-master-v8-0-823d2c5d090a@oss.qualcomm.com> <20260917-master-v8-2-823d2c5d090a@oss.qualcomm.com> Content-Language: en-US From: Prasad Kumpatla In-Reply-To: <20260917-master-v8-2-823d2c5d090a@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=LOzz05W9 c=1 sm=1 tr=0 ts=6aacc0c4 cx=c_pps a=rz3CxIlbcmazkYymdCej/Q==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=Y4doX2lIe-IihnvZzhwA:9 a=QEXdDO2ut3YA:10 a=bFCP_H2QrGi7Okbo017w:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE4MDA1OSBTYWx0ZWRfX+rVL7J/NBOFw T0Ox9ftfqxdgws9EsNnl8RqHXrFON/nopfiLv2jkv3aXX980bkd26+OlVOFmJeZpvIQMzIO6wwa mkzLgeY5Arg7J7Phvtd2kCvdg4Qnh7lHNhvzDFo3fpBhLYL53e43er6AoWLwEqAfGtEMwQMA2aA c9a6qvgeS5gEPUfTWe/mad/HthMq++1RrO6u2GaUz2ZvBsuPqVOQ5/WHyEEx0IPMgKFbUgKV4rD a3XTI2Ml+Ms9i1lrPhA/FWnoV0SbEQTWlLrToog5LO9HWX9cCvZqQ/lfxBSppMF4xvDLhaeXnBi BOLt6Ti6m3AqXHyOD+h4BOTynV8+YvZD46d5gzcdBaFhb2Hk9fYNMC1MG5Q7ea+1WXtR6+rOu0h zwpBkokuiOilrHb2kvUI/+QogwZvHpP2qbkxR0wVZMv5FlJ6hHnH65RNDbafTWGyuOtI4u3XRdw 0I9CcphbWbXB1iVTIZQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE4MDA1OSBTYWx0ZWRfXz/ErsBILuJHd bADvD1EYwweedwB54Ha5sCBDZPSKxGelCvVMi+pwt14nCVVVH+2RlPngMiY18smITV2umgUmvqM obhR2+oqwog1EJvAK42Qho3G0XGQOK8= X-Proofpoint-ORIG-GUID: O33uLn-8MEjJUA36N3Z38O3r8CG1Inx2 X-Proofpoint-GUID: O33uLn-8MEjJUA36N3Z38O3r8CG1Inx2 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=2026-09-18_01,2026-09-16_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 priorityscore=1501 bulkscore=0 impostorscore=0 spamscore=0 suspectscore=0 adultscore=0 lowpriorityscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609180059 On 9/17/2026 7:27 PM, Sarath Ganapathiraju via B4 Relay wrote: > From: Sarath Ganapathiraju > > The HeartBeat Pulse, also known as RateGen Pulse, synchronizes the > start of DMAs and Codec Interfaces for the audio usecases and can > serve as a periodic wakeup source for the DSP. > > Add the LPASS VA CSR driver that models the rate generator as a clock > provider so it is enabled and disabled automatically alongside the > other clocks during runtime PM resume and suspend. > > Attach the DT vote clocks to runtime PM and resume the device before > programming the rate generator registers, so register accesses happen > only after the LPASS votes are active. > > Signed-off-by: Sarath Ganapathiraju Validated on Hawi and Maili platforms for WCD-Headset playback. Reviewed-by: Prasad Kumpatla Tested-by: Prasad Kumpatla Thanks, Prasad