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From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Chen-Yu Tsai <wenst@chromium.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
	Miles Chen <miles.chen@mediatek.com>,
	linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/6] clk: mediatek: mt8192: Do not re-register top_early_divs in probe function
Date: Tue, 27 Sep 2022 12:39:41 +0200	[thread overview]
Message-ID: <0a1618c4-b808-56bd-e89f-560b0423191d@collabora.com> (raw)
In-Reply-To: <20220926102523.2367530-4-wenst@chromium.org>

Il 26/09/22 12:25, Chen-Yu Tsai ha scritto:
> top_early_divs are registered in the CLK_OF_DECLARE_DRIVER() half of the
> topckgen clk driver. Don't try to register it again in the actual probe
> function. This gets rid of the "Trying to register duplicate clock ..."
> warning.
> 
> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>

Can't we simply remove the CLK_OF_DECLARE_DRIVER() and top_init_early entirely,
and transfer TOP_CSW_F26M_D2 to top_divs[] instead?
I get that systimer concern and we have something similar in MT8195, where the
TOP_CLK26M_D2 is registered "late".

Getting back to MT8192, TOP_CSW_F26M_D2 seems to be used only for:
1. systimer
2. SPMI MST (registered "late").

Being it a fixed factor clock, parented to another fixed clock, it doesn't
even have any ON/OFF switch, so I think it would be actually possible to go
for the proposed removal... which would further improve this cleanup.

Regards,
Angelo



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  reply	other threads:[~2022-09-27 10:40 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-26 10:25 [PATCH 0/6] clk: mediatek: More cleanups Chen-Yu Tsai
2022-09-26 10:25 ` [PATCH 1/6] clk: mediatek: fix unregister function in mtk_clk_register_dividers cleanup Chen-Yu Tsai
2022-09-27 10:39   ` AngeloGioacchino Del Regno
2022-09-26 10:25 ` [PATCH 2/6] clk: mediatek: Migrate remaining clk_unregister_*() to clk_hw_unregister_*() Chen-Yu Tsai
2022-09-27 10:40   ` AngeloGioacchino Del Regno
2022-09-26 10:25 ` [PATCH 3/6] clk: mediatek: mt8192: Do not re-register top_early_divs in probe function Chen-Yu Tsai
2022-09-27 10:39   ` AngeloGioacchino Del Regno [this message]
2022-09-28  1:55     ` Miles Chen
2022-09-28  7:50       ` Chen-Yu Tsai
2022-09-30  7:09         ` Miles Chen
2022-09-28  6:51     ` Chen-Yu Tsai
2022-09-26 10:25 ` [PATCH 4/6] clk: mediatek: mt8192: Avoid duplicate OF clk provider for topckgen Chen-Yu Tsai
2022-09-26 10:25 ` [PATCH 5/6] clk: mediatek: mt8192: deduplicate parent clock lists Chen-Yu Tsai
2022-09-27 10:39   ` AngeloGioacchino Del Regno
2022-09-26 10:25 ` [PATCH 6/6] clk: mediatek: mt8192: Implement error handling in probe functions Chen-Yu Tsai
2022-09-27 10:39   ` AngeloGioacchino Del Regno
2022-09-29  4:36 ` [PATCH 0/6] clk: mediatek: More cleanups Chen-Yu Tsai

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