linux-kernel - Re: [PATCH 2/2] clk: qcom: sm8250-dispcc: Flag shared RCGs as assumed enable

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Message-ID: <Ya7rfVuaqgTTJEoh@matsya>
Date:   Tue, 7 Dec 2021 10:35:01 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, dmitry.baryshkov@...aro.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 2/2] clk: qcom: sm8250-dispcc: Flag shared RCGs as
 assumed enable

On 02-12-21, 19:54, Bjorn Andersson wrote:
> The state of the shared RCGs found in the SM8250 dispcc can't reliably
> be queried and hence doesn't implement the is_enabled() callback.
> 
> Mark the shared RCGs as CLK_ASSUME_ENABLED_WHEN_UNUSED, to ensure that
> clk_disable_unused() will issue a disable and park the RCGs before it
> turns off the parent PLLs - which will lock up these RCGs in any system
> with continuous splash enabled.

Reviewed-by: Vinod Koul <vkoul@...nel.org>

-- 
~Vinod