From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Jianfeng Liu <liujianfeng1994@gmail.com>, linux-clk@vger.kernel.org
Cc: linux-arm-msm@vger.kernel.org,
Bjorn Andersson <andersson@kernel.org>,
linux-kernel@vger.kernel.org, Dmitry Baryshkov <lumag@kernel.org>,
Abel Vesa <abelvesa@kernel.org>, Stephen Boyd <sboyd@kernel.org>,
Rajendra Nayak <quic_rjendra@quicinc.com>,
Brian Masney <bmasney+clk@redhat.com>,
Jerome Brunet <jbrunet+clk@baylibre.com>
Subject: Re: [PATCH] clk: qcom: dispcc-x1e80100: don't disable display PLLs in the unused-clock sweep
Date: Thu, 1 Oct 2026 10:18:12 +0200 [thread overview]
Message-ID: <801e79b4-f45c-4f23-8b8d-5ac301d77e9d@oss.qualcomm.com> (raw)
In-Reply-To: <20260930092904.5222-1-liujianfeng1994@gmail.com>
On 9/30/26 11:28 AM, Jianfeng Liu wrote:
> UEFI leaves disp_cc_pll0 locked and running for the handover
> framebuffer. clk_disable_unused() runs before any
> display driver probes, finds it unused (no consumers, no
> CLK_IGNORE_UNUSED) and powers it down through
> alpha_pll_reset_lucid_evo_disable(). When the DPU driver later
> enables mdp_clk, alpha_pll_reset_lucid_evo_prepare() performs a
> full PLL reset and relock.
Can you give
https://lore.kernel.org/linux-arm-msm/20260626-clk-sync-state-v1-0-4156d8196dc8@redhat.com/
a shot?
Konrad
next prev parent reply other threads:[~2026-10-01 8:18 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-30 9:28 Jianfeng Liu
2026-10-01 8:18 ` Konrad Dybcio [this message]
2026-10-03 14:02 ` Jianfeng Liu
2026-10-21 12:14 ` Konrad Dybcio
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