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Wed, 30 Sep 2026 10:05:49 -0700 (PDT) X-Received: by 2002:a17:903:2b0c:b0:2e2:cb85:60d with SMTP id d9443c01a7336-2e2e4bb19fdmr16830275ad.53.1790787948702; Wed, 30 Sep 2026 10:05:48 -0700 (PDT) Received: from [192.168.0.106] ([49.205.116.211]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2e300b31e05sm572195ad.62.2026.09.30.10.05.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 30 Sep 2026 10:05:48 -0700 (PDT) Message-ID: Date: Wed, 30 Sep 2026 22:35:41 +0530 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v10 0/2] Add LPASS VA CSR HeartBeat pulse clock support 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: <20260930-master-v10-0-105207bc5275@oss.qualcomm.com> Content-Language: en-US From: Prasad Kumpatla In-Reply-To: <20260930-master-v10-0-105207bc5275@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwOTMwMDA2OCBTYWx0ZWRfX5ZmyW4c6rPyz hg/4Fthpa7s7p+k1H2tPBcxcQvB2vJpXsvPXGeC7KeiePC6FpMw/8HzwLTJTna4OR1uKGFh9kQR CNhynmNzBZIypUi/ZZISn7rbe5aZ+a4= X-Proofpoint-ORIG-GUID: 9ae0IJRfvWiUhQGTd1Bh4kIXUa4pjKwR X-Authority-Analysis: v=2.4 cv=VrC2kO2n c=1 sm=1 tr=0 ts=6abd416e cx=c_pps a=JL+w9abYAAE89/QcEU+0QA==:117 a=2ngnHYY/h7Qxskz9zhV0NA==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=EUspDBNiAAAA:8 a=EGVZlqAv5GW_eZpGnoMA:9 a=QEXdDO2ut3YA:10 a=324X-CrmTo6CU4MGRt3R:22 X-Proofpoint-GUID: 9ae0IJRfvWiUhQGTd1Bh4kIXUa4pjKwR X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTMwMDA2OCBTYWx0ZWRfXw9cUAep57v5A jggMWcBkaTRJjw3eXnR80E/6F7gomNsXl9oRUU+3CnBv3d6vJGLU647KLfbxcr2ClrKQq3opTng +B2IOUghxJH8H+kOVx93XhVnqnv7x7Iuhim4ZxZ9RqOjUXPJFDdz9hKAi19WEUhOJvwQe+h0/j/ fHcUh7D2PdGfencC997t6v68t6FInv/+73BKkmjaCTlOLyaCM5CdMJ1NIT4+3fsBtfX4gO4vGgF xPM745tmFZy6ebmGlg47j/AIzVOuqAuzdwbsKvDEfGRql4D7YJbaqdwR3B8u2laTPZ5bFeSXcxN k3TYMAm8bZnhQ0E0cbCcmx2cJfYNM9LiOQNKCuUhOKDZbLtflEHtimUYjXrf83a5gR2ikihy6Kt ggFGQdEDCdi3Z7MpObTsnpfMFiyWmapBw6eFYZY7arj/WTeY5dAJr9BiStq2+0ql4BDCFJcr2k9 dp2oNSMNkQfE1ksnh/w== 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=2026-09-30_03,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 impostorscore=0 clxscore=1015 malwarescore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 priorityscore=1501 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609300068 On 9/30/2026 3:21 PM, Sarath Ganapathiraju via B4 Relay wrote: > The LPASS VA CSR block contains rate generator hardware that produces > a HeartBeat Pulse (also known as RateGen Pulse). This pulse > synchronizes the start of the DMAs and Codec Interfaces for the audio > usecases and can serve as a periodic wakeup source for the DSP. > > This series adds the DT binding and driver support to model this > rate generator as a clock provider. > > Patch 1 adds the YAML binding for the new qcom,hawi-lpass-va-csr > clock provider node under Documentation/devicetree/bindings/clock/. > > Patch 2 adds the lpass-va-csr driver under drivers/clk/qcom that > registers the lpass_heartbeat_pulse clock and enables/disables the > rate generator via regmap when the clock consumer requests it. Tested on Hawi - WCD Headset Playback and Record working fine. Reviewed-by: Prasad Kumpatla Tested-by: Prasad Kumpatla