From: wsa+renesas <wsa+renesas@sang-engineering.com>
To: Biju Das <biju.das.jz@bp.renesas.com>
Cc: "biju.das.au" <biju.das.au@gmail.com>,
Ulf Hansson <ulfh@kernel.org>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
"linux-renesas-soc@vger.kernel.org"
<linux-renesas-soc@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: Re: [PATCH v24 04/15] mmc: renesas_sdhi: Add max_divider field to support SoC-specific clock ranges
Date: Thu, 10 Sep 2026 23:56:46 +0200 [thread overview]
Message-ID: <aqMnnjs_9tzfuPem@shikoro> (raw)
In-Reply-To: <TY3PR01MB11346696A5DF407A8E25150F186B52@TY3PR01MB11346.jpnprd01.prod.outlook.com>
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> > > - mmc->f_min = max(clk_round_rate(priv->clk, 1) / 512, 1L);
> > > + mmc->f_min = max(clk_round_rate(priv->clk, 1) /
> > > +host->pdata->max_divider, 1L);
> >
> > ... because the existing code is just too subtle / fragile and hard to understand. I think we should move
> > clk_round_rate() out of max() and handle it seperatly before. What do you think?
>
> You mean use, max(clk_get_rate(priv->clk) / 512, 1);
>
> clk_get_rate() returns unsigned long compared to clk_round_rate() which return long??
I mean
rate = clk_round_rate(priv->clk, 1);
if (rate < 0)
...
mmc->f_min = max(rate / host->pdata->max_divider, 1L);
Makes sense?
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next prev parent reply other threads:[~2026-09-10 21:56 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-20 17:16 [PATCH v24 00/15] Add Renesas RZ/G3L SD/eMMC support Biju
2026-08-20 17:16 ` [PATCH v24 01/15] dt-bindings: mmc: renesas,sdhi: Document RZ/G3L (r9a08g046) SoC Biju
2026-09-02 10:45 ` Wolfram Sang
2026-08-20 17:16 ` [PATCH v24 02/15] mmc: renesas_sdhi: Clean up whitespace and add OF table sentinels Biju
2026-09-02 10:47 ` Wolfram Sang
2026-09-04 6:40 ` Biju Das
2026-09-09 18:46 ` wsa+renesas
2026-08-20 17:16 ` [PATCH v24 03/15] mmc: renesas_sdhi: Add clk_mask field to support flexible clock divider widths Biju
2026-09-02 10:51 ` Wolfram Sang
2026-09-04 10:54 ` Biju Das
2026-09-02 10:54 ` Wolfram Sang
2026-09-04 11:03 ` Biju Das
2026-09-10 21:52 ` wsa+renesas
2026-08-20 17:16 ` [PATCH v24 04/15] mmc: renesas_sdhi: Add max_divider field to support SoC-specific clock ranges Biju
2026-09-02 11:05 ` Wolfram Sang
2026-09-04 12:46 ` Biju Das
2026-09-10 21:56 ` wsa+renesas [this message]
2026-08-20 17:16 ` [PATCH v24 05/15] mmc: renesas_sdhi: Add SDHI_SD_CLK_CTL_DIV1 macro for 1/1 option Biju
2026-09-02 11:06 ` Wolfram Sang
2026-08-20 17:16 ` [PATCH v24 06/15] mmc: renesas_sdhi: Make clock divider mask configurable Biju
2026-09-02 11:09 ` Wolfram Sang
2026-09-04 12:48 ` Biju Das
2026-08-20 17:16 ` [PATCH v24 07/15] mmc: renesas_sdhi: Add tuning delay support for RZ/G2L Biju
2026-09-03 9:30 ` Wolfram Sang
2026-09-04 14:47 ` Biju Das
2026-09-03 9:34 ` Wolfram Sang
2026-09-04 15:15 ` Biju Das
2026-08-20 17:16 ` [PATCH v24 08/15] mmc: renesas_sdhi: Add TMIO_MMC_INTERNAL_DIVIDER flag Biju
2026-09-03 9:37 ` Wolfram Sang
2026-09-07 6:37 ` Biju Das
2026-09-03 9:43 ` Wolfram Sang
2026-09-07 7:19 ` Biju Das
2026-08-20 17:16 ` [PATCH v24 09/15] mmc: renesas_sdhi: Add optional axis/axim reset controls Biju
2026-09-03 9:48 ` Wolfram Sang
2026-08-20 17:16 ` [PATCH v24 10/15] mmc: renesas_sdhi: Add write32_hook for CTL_SD_CARD_CLK_CTL register writes Biju
2026-09-03 10:30 ` Wolfram Sang
2026-09-07 8:19 ` Biju Das
2026-09-03 10:32 ` Wolfram Sang
2026-09-07 8:27 ` Biju Das
2026-08-20 17:16 ` [PATCH v24 11/15] mmc: renesas_sdhi: Add RZ/G3L SDHI support Biju
2026-09-03 12:01 ` Wolfram Sang
2026-09-07 12:53 ` Biju Das
2026-08-20 17:16 ` [PATCH v24 12/15] mmc: renesas_sdhi: Save and restore IOVS across suspend/resume Biju
2026-08-20 17:16 ` [PATCH v24 13/15] mmc: renesas_sdhi: Make HS400 OSEL bit configurable per SoC Biju
2026-08-20 17:16 ` [PATCH v24 14/15] mmc: renesas_sdhi: Add RZ/G3L HS400 support Biju
2026-08-20 17:16 ` [PATCH v24 15/15] mmc: renesas_sdhi: Add HS400 enhanced strobe support for RZ/G3L Biju
2026-09-01 14:52 ` [PATCH v24 00/15] Add Renesas RZ/G3L SD/eMMC support Wolfram Sang
2026-09-03 20:11 ` Wolfram Sang
2026-09-04 2:24 ` Biju Das
2026-09-04 8:00 ` Geert Uytterhoeven
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