linux-kernel - Re: [PATCH] clk: mediatek: mt7981-topckgen: flag SGM_REG

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Message-ID: <94919703-18b5-477c-8dc4-9a359129284d@collabora.com>
Date: Mon, 19 Feb 2024 13:33:26 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Daniel Golle <daniel@...rotopia.org>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>,
 Chen-Yu Tsai <wenst@...omium.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
 Rob Herring <robh@...nel.org>, Jianhui Zhao <zhaojh329@...il.com>,
 linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org
Cc: John Crispin <john@...ozen.org>, Steven Liu <steven.liu@...iatek.com>
Subject: Re: [PATCH] clk: mediatek: mt7981-topckgen: flag SGM_REG_SEL as
 critical

Il 18/02/24 04:11, Daniel Golle ha scritto:
> Without the SGM_REG_SEL clock enabled the cpu freezes if trying to
> access registers used by MT7981 clock drivers itself.
> Mark SGM_REG_SEL as critical to make sure it is always enabled to
> prevent freezes on boot even if the Ethernet driver which prepares
> and enables the clock is not loaded or probed at a later point.
> 
> Fixes: 813c3b53b55b ("clk: mediatek: add MT7981 clock support")
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>