From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Sushmit Singh Rathore <sushmit718@gmail.com>,
Bjorn Andersson <andersson@kernel.org>,
Stephen Boyd <sboyd@kernel.org>
Cc: Abel Vesa <abel.vesa@oss.qualcomm.com>,
Abel Vesa <abelvesa@kernel.org>,
Brian Masney <bmasney+clk@redhat.com>,
Jerome Brunet <jbrunet+clk@baylibre.com>,
Vinod Koul <vkoul@kernel.org>,
Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>,
linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 3/3] clk: qcom: camcc-sm8450: Park the camera RCGs when they are disabled
Date: Thu, 22 Oct 2026 09:59:01 +0200 [thread overview]
Message-ID: <d8279746-7abe-4dd4-9eab-8137d2da19d5@oss.qualcomm.com> (raw)
In-Reply-To: <20261020142157.1749-4-sushmit718@gmail.com>
On 10/20/26 4:21 PM, Sushmit Singh Rathore wrote:
> The camera RCGs use clk_rcg2_ops, so a disabled RCG stays configured
> on whichever PLL it last ran from. When that PLL is turned off and the
> Titan top GDSC then collapses after a camera session, the SoC hangs.
>
> Switch them to clk_rcg2_shared_ops so they park on the XO while
> disabled, as camcc-sm8550 does. cam_cc_sleep_clk_src runs from the
> always-on sleep clock and is left alone.
>
> Tested on the Nothing Phone (2) (SM8475).
>
> Fixes: 6082037fe62e ("clk: qcom: add camera clock controller driver for SM8450 SoC")
> Assisted-by: LLM
> Signed-off-by: Sushmit Singh Rathore <sushmit718@gmail.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
prev parent reply other threads:[~2026-10-22 7:59 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-20 14:21 [PATCH v2 0/3] clk: qcom: sm8450: Fix eUSB clkref and camera clock collapse Sushmit Singh Rathore
2026-10-20 14:21 ` [PATCH v2 1/3] clk: qcom: gcc-sm8450: Parent the eUSB3 clkref to bi_tcxo Sushmit Singh Rathore
2026-10-21 8:39 ` Abel Vesa
2026-10-22 7:57 ` Konrad Dybcio
2026-10-20 14:21 ` [PATCH v2 2/3] clk: qcom: camcc-sm8450: Retain flops across camera GDSC collapse Sushmit Singh Rathore
2026-10-21 8:40 ` Abel Vesa
2026-10-22 7:57 ` Konrad Dybcio
2026-10-20 14:21 ` [PATCH v2 3/3] clk: qcom: camcc-sm8450: Park the camera RCGs when they are disabled Sushmit Singh Rathore
2026-10-21 8:40 ` Abel Vesa
2026-10-22 7:59 ` Konrad Dybcio [this message]
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