From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Prabhakar <prabhakar.csengg@gmail.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Magnus Damm <magnus.damm@gmail.com>,
linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
Biju Das <biju.das.jz@bp.renesas.com>,
Fabrizio Castro <fabrizio.castro.jz@renesas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: Re: [PATCH v4 1/3] dt-bindings: mmc: renesas,sdhi: Document RZ/V2H(P) support
Date: Wed, 3 Jul 2024 11:38:06 +0200 [thread overview]
Message-ID: <ZoUb_olfaVapoYBi@shikoro> (raw)
In-Reply-To: <20240626132341.342963-2-prabhakar.mahadev-lad.rj@bp.renesas.com>
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On Wed, Jun 26, 2024 at 02:23:39PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> The SD/MMC block on the RZ/V2H(P) ("R9A09G057") SoC is similar to that
> of the R-Car Gen3, but it has some differences:
> - HS400 is not supported.
> - It supports the SD_IOVS bit to control the IO voltage level.
> - It supports fixed address mode.
>
> To accommodate these differences, a SoC-specific 'renesas,sdhi-r9a09g057'
> compatible string is added.
>
> A 'vqmmc-regulator' object is introduced to handle the power enable (PWEN)
> and voltage level switching for the SD/MMC.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Can we have an example here? I can read DTS snippets better than YAML
code :/ Also wondering about the "regulator-compatible" property but
maybe the example makes the problem clear?
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next prev parent reply other threads:[~2024-07-03 9:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-26 13:23 [PATCH v4 0/3] Add SD/MMC support for Renesas RZ/V2H(P) SoC Prabhakar
2024-06-26 13:23 ` [PATCH v4 1/3] dt-bindings: mmc: renesas,sdhi: Document RZ/V2H(P) support Prabhakar
2024-06-26 16:25 ` Conor Dooley
2024-07-03 9:38 ` Wolfram Sang [this message]
2024-07-04 18:27 ` Lad, Prabhakar
2024-07-22 13:19 ` Lad, Prabhakar
2024-06-26 13:23 ` [PATCH v4 2/3] mmc: tmio: Use MMC core APIs to control the vqmmc regulator Prabhakar
2024-06-26 13:23 ` [PATCH v4 3/3] mmc: renesas_sdhi: Add support for RZ/V2H(P) SoC Prabhakar
2024-06-27 9:56 ` Biju Das
2024-07-03 9:36 ` Wolfram Sang
2024-07-03 11:11 ` Biju Das
2024-07-03 9:43 ` Wolfram Sang
2024-07-04 15:56 ` Lad, Prabhakar
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