From: Alexandre Mergnat <amergnat@baylibre.com>
To: AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
mturquette@baylibre.com
Cc: sboyd@kernel.org, matthias.bgg@gmail.com, wenst@chromium.org,
chun-jie.chen@mediatek.com, mandyjh.liu@mediatek.com,
miles.chen@mediatek.com, zhaojh329@gmail.com,
daniel@makrotopia.org, nfraprado@collabora.com,
rex-bc.chen@mediatek.com, Garmin.Chang@mediatek.com,
msp@baylibre.com, yangyingliang@huawei.com,
linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, kernel@collabora.com
Subject: Re: [PATCH v2 2/2] clk: mediatek: Remove CLK_SET_PARENT from all MSDC core clocks
Date: Tue, 23 May 2023 12:58:32 +0200 [thread overview]
Message-ID: <af25cbbe-bfa9-3d29-360e-e4f932d286c8@baylibre.com> (raw)
In-Reply-To: <20230516135205.372951-3-angelogioacchino.delregno@collabora.com>
On 16/05/2023 15:52, AngeloGioacchino Del Regno wrote:
> Various MSDC core clocks, used for multiple MSDC controller instances,
> share the same parent(s): in order to add parents selection in the
> mtk-sd driver to achieve an accurate clock rate for all modes, remove
> the CLK_SET_RATE_PARENT flag from all MSDC clocks for all SoCs: this
> will make sure that a clk_set_rate() call performed for a clock on
> a secondary controller will not change the rate of a common parent,
> which would result in an overclock or underclock of one of the
> controllers.
>
> Signed-off-by: AngeloGioacchino Del Regno<angelogioacchino.delregno@collabora.com>
> Reviewed-by: Matthias Brugger<matthias.bgg@gmail.com>
> Reviewed-by: Markus Schneider-Pargmann<msp@baylibre.com>
Tested on mt8365-evk board.
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Tested-by: Alexandre Mergnat <amergnat@baylibre.com>
next prev parent reply other threads:[~2023-05-23 10:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-16 13:52 [PATCH v2 0/2] clk/mediatek: Adjustments for MSDC rate accuracy AngeloGioacchino Del Regno
2023-05-16 13:52 ` [PATCH v2 1/2] clk: mediatek: mux: Stop forcing CLK_SET_RATE_PARENT flag AngeloGioacchino Del Regno
2023-05-23 10:54 ` Alexandre Mergnat
2023-06-13 1:20 ` Stephen Boyd
2023-05-16 13:52 ` [PATCH v2 2/2] clk: mediatek: Remove CLK_SET_PARENT from all MSDC core clocks AngeloGioacchino Del Regno
2023-05-23 10:58 ` Alexandre Mergnat [this message]
2023-06-13 1:20 ` Stephen Boyd
2023-05-17 16:52 ` [PATCH v2 0/2] clk/mediatek: Adjustments for MSDC rate accuracy Alexandre Mergnat
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