linux-kernel - Re: [PATCH 1/1] clk: composite: Fix 'switching' to same clock

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Message-ID: <163598700289.2993099.1140453821965698575@swboyd.mtv.corp.google.com>
Date:   Wed, 03 Nov 2021 17:50:02 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Alexander Stein <alexander.stein@...tq-group.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Michael Turquette <mturquette@...libre.com>
Cc:     Alexander Stein <alexander.stein@...tq-group.com>,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] clk: composite: Fix 'switching' to same clock

Quoting Alexander Stein (2021-11-03 05:24:41)
> During commit 6594988fd625 ("clk: composite: Use rate_ops.determine_rate
> when also a mux is available") setting req->best_parent_hw got lost,
> so best_parent_hw stays NULL during switch to the same parent. This
> results in the (debug) message:
>   clk_calc_new_rates: lcdif_pixel not gated but wants to reparent
> and the following rate change is dropped.
> 
> Fixes: 6594988fd625 ("clk: composite: Use rate_ops.determine_rate when also a mux is available")
> Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
> ---

Applied to clk-next