linux-kernel - Re: [PATCH 3/9] clk: ti: am33xx: Keep am3 l3 main clock always on for genpd

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Date:   Tue, 08 Dec 2020 18:20:35 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Tony Lindgren <tony@...mide.com>, linux-omap@...r.kernel.org
Cc:     Dave Gerlach <d-gerlach@...com>, Faiz Abbas <faiz_abbas@...com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Keerthy <j-keerthy@...com>, Nishanth Menon <nm@...com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Roger Quadros <rogerq@...com>, Suman Anna <s-anna@...com>,
        Tero Kristo <t-kristo@...com>, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        Michael Turquette <mturquette@...libre.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        linux-remoteproc@...r.kernel.org
Subject: Re: [PATCH 3/9] clk: ti: am33xx: Keep am3 l3 main clock always on for genpd

Quoting Tony Lindgren (2020-11-10 03:20:36)
> In order for suspend and resume to work with genpd on am3, we must keep
> l3 main clock always on. Otherwise prm_omap driver will shut down the l3
> main clock on suspend when simple-pm-bus and GENPD_FLAG_PM_CLK are used.
> Note that we already keep the l3 main clock always on with the legacy
> platform code.
> 
> Later on we may want to start managing the l3 main clock with a dedicated
> interconnect driver instead of using simple-pm-bus and GENPD_FLAG_PM_CLK.
> 
> Cc: linux-clk@...r.kernel.org
> Cc: Michael Turquette <mturquette@...libre.com>
> Cc: Stephen Boyd <sboyd@...nel.org>
> Cc: Tero Kristo <t-kristo@...com>
> Signed-off-by: Tony Lindgren <tony@...mide.com>
> ---

Acked-by: Stephen Boyd <sboyd@...nel.org>