linux-kernel - Re: [PATCH v2 0/2] clk/mediatek: Adjustments for MSDC rate accuracy

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Date:   Wed, 17 May 2023 18:52:56 +0200
From:   Alexandre Mergnat <amergnat@...libre.com>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>, mturquette@...libre.com
Cc:     sboyd@...nel.org, matthias.bgg@...il.com, wenst@...omium.org,
        chun-jie.chen@...iatek.com, mandyjh.liu@...iatek.com,
        miles.chen@...iatek.com, zhaojh329@...il.com,
        daniel@...rotopia.org, nfraprado@...labora.com,
        rex-bc.chen@...iatek.com, Garmin.Chang@...iatek.com,
        msp@...libre.com, yangyingliang@...wei.com,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, kernel@...labora.com
Subject: Re: [PATCH v2 0/2] clk/mediatek: Adjustments for MSDC rate accuracy

On 16/05/2023 15:52, AngeloGioacchino Del Regno wrote:
> Changes in v2:
>    - Extended the changes in this series to MT8365 clocks
> 
> This series stops unconditionally forcing CLK_SET_RATE_PARENT on
> MediaTek muxes, as that should be set in the clock driver for each
> clock requiring it, and removes CLK_SET_PARENT from all MSDC core
> clocks to allow mtk-sd to select the right clock parent when doing
> mclk setting, improving the rate accuracy and avoiding both under
> and overclocks of the eMMC/SD/SDIO card, both improving performance
> and stability of the attached storage.
> 
> This series was successfully tested on MT8173, MT8192, MT8195.
> 
> AngeloGioacchino Del Regno (2):
>    clk: mediatek: mux: Stop forcing CLK_SET_RATE_PARENT flag
>    clk: mediatek: Remove CLK_SET_PARENT from all MSDC core clocks
> 
>   drivers/clk/mediatek/clk-mt6765.c          | 20 +++++-----
>   drivers/clk/mediatek/clk-mt6779.c          | 24 +++++------
>   drivers/clk/mediatek/clk-mt7981-topckgen.c | 12 +++---
>   drivers/clk/mediatek/clk-mt7986-topckgen.c | 12 +++---
>   drivers/clk/mediatek/clk-mt8173-topckgen.c | 24 +++++------
>   drivers/clk/mediatek/clk-mt8183.c          | 22 ++++++-----
>   drivers/clk/mediatek/clk-mt8186-topckgen.c | 24 +++++------
>   drivers/clk/mediatek/clk-mt8188-topckgen.c | 40 +++++++++++--------
>   drivers/clk/mediatek/clk-mt8192.c          | 23 +++++------
>   drivers/clk/mediatek/clk-mt8195-topckgen.c | 46 +++++++++++++---------
>   drivers/clk/mediatek/clk-mt8365.c          | 38 +++++++++---------
>   drivers/clk/mediatek/clk-mux.c             |  2 +-
>   12 files changed, 155 insertions(+), 132 deletions(-)
> 

I will try to test it next week on MT8365 SoC.

-- 
Regards,
Alexandre