From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Biju Das <biju.das.jz@bp.renesas.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
linux-mmc@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>,
Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>,
Biju Das <biju.das.au@gmail.com>
Subject: Re: [PATCH RFT] mmc: host: renesas_sdhi: Fix the actual clock
Date: Thu, 21 Aug 2025 11:49:01 +0200 [thread overview]
Message-ID: <aKbrjc0ltDx5yg8K@shikoro> (raw)
In-Reply-To: <20250629203859.170850-1-biju.das.jz@bp.renesas.com>
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On Sun, Jun 29, 2025 at 09:38:56PM +0100, Biju Das wrote:
> Wrong actual clock reported, if the SD clock division ratio is other
> than 1:1(bits DIV[7:0] in SD_CLK_CTRL are set to 11111111).
>
> On high speed mode, cat /sys/kernel/debug/mmc1/ios
> Without the patch:
> clock: 50000000 Hz
> actual clock: 200000000 Hz
>
> After the fix:
> clock: 50000000 Hz
> actual clock: 50000000 Hz
>
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
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prev parent reply other threads:[~2025-08-21 9:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-29 20:38 [PATCH RFT] mmc: host: renesas_sdhi: Fix the actual clock Biju Das
2025-08-18 10:55 ` Ulf Hansson
2025-08-18 11:00 ` Geert Uytterhoeven
2025-08-18 11:24 ` Biju Das
2025-08-21 9:41 ` Wolfram Sang
2025-08-21 9:45 ` Biju Das
2025-08-21 9:49 ` Wolfram Sang [this message]
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