From: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com>
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
Subject: Re: [PATCH v8 2/2] clk: qcom: Add LPASS VA CSR heartbeat pulse clock
Date: Fri, 18 Sep 2026 10:10:19 +0530 [thread overview]
Message-ID: <3ddb920b-1d9f-4ec3-98a2-3477f845c145@oss.qualcomm.com> (raw)
In-Reply-To: <20260917-master-v8-2-823d2c5d090a@oss.qualcomm.com>
On 9/17/2026 7:27 PM, Sarath Ganapathiraju via B4 Relay wrote:
> From: Sarath Ganapathiraju <sarath.ganapathiraju@oss.qualcomm.com>
>
> 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 <sarath.ganapathiraju@oss.qualcomm.com>
Validated on Hawi and Maili platforms for WCD-Headset playback.
Reviewed-by: Prasad Kumpatla<prasad.kumpatla@oss.qualcomm.com>
Tested-by: Prasad Kumpatla<prasad.kumpatla@oss.qualcomm.com>
Thanks,
Prasad
prev parent reply other threads:[~2026-09-18 4:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 13:57 [PATCH v8 0/2] Add LPASS VA CSR HeartBeat pulse clock support Sarath Ganapathiraju via B4 Relay
2026-09-17 13:57 ` [PATCH v8 1/2] dt-bindings: clock: qcom: Add LPASS VA CSR HeartBeat pulse clock Sarath Ganapathiraju via B4 Relay
2026-09-17 13:57 ` [PATCH v8 2/2] clk: qcom: Add LPASS VA CSR heartbeat " Sarath Ganapathiraju via B4 Relay
2026-09-17 16:08 ` Srinivas Kandagatla
2026-09-18 4:40 ` Prasad Kumpatla [this message]
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