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From: Troy Mitchell <troy.mitchell@linux.dev>
To: Iker Pedrosa <ikerpedrosam@gmail.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@kernel.org>
Cc: Michael Opdenacker <michael.opdenacker@rootcommit.com>,
	Javier Martinez Canillas <javierm@redhat.com>,
	linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
	linux-riscv@lists.infradead.org, spacemit@lists.linux.dev,
	linux-kernel@vger.kernel.org, Anand Moon <linux.amoon@gmail.com>,
	Trevor Gamblin <tgamblin@baylibre.com>,
	Troy Mitchell <troy.mitchell@linux.dev>
Subject: Re: [PATCH v5 3/9] mmc: sdhci-of-k1: add regulator and pinctrl voltage switching support
Date: Mon, 30 Mar 2026 17:15:34 +0800	[thread overview]
Message-ID: <aco_NocWwrkGdTaK@kernel.org> (raw)
In-Reply-To: <20260330-orangepi-sd-card-uhs-v5-3-bd853604322d@gmail.com>

On Mon, Mar 30, 2026 at 16:38:04 CST, Iker Pedrosa wrote:
> Add voltage switching infrastructure for UHS-I modes by integrating both
> regulator framework (for supply voltage control) and pinctrl state
> switching (for pin drive strength optimization).
> 
> - Add regulator supply parsing and voltage switching callback
> - Add optional pinctrl state switching between "default" (3.3V) and
>   "state_uhs" (1.8V) configurations
> - Enable coordinated voltage and pin configuration changes for UHS modes
> 
> This provides complete voltage switching support while maintaining
> backward compatibility when pinctrl states are not defined.
> 
> Tested-by: Anand Moon <linux.amoon@gmail.com>
> Tested-by: Trevor Gamblin <tgamblin@baylibre.com>
> Acked-by: Adrian Hunter <adrian.hunter@intel.com>
> Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Reviewed-by: Troy Mitchell <troy.mitchell@linux.dev>

WARNING: multiple messages have this Message-ID (diff)
From: Troy Mitchell <troy.mitchell@linux.dev>
To: Iker Pedrosa <ikerpedrosam@gmail.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@kernel.org>
Cc: Michael Opdenacker <michael.opdenacker@rootcommit.com>,
	Javier Martinez Canillas <javierm@redhat.com>,
	linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
	linux-riscv@lists.infradead.org, spacemit@lists.linux.dev,
	linux-kernel@vger.kernel.org, Anand Moon <linux.amoon@gmail.com>,
	Trevor Gamblin <tgamblin@baylibre.com>,
	Troy Mitchell <troy.mitchell@linux.dev>
Subject: Re: [PATCH v5 3/9] mmc: sdhci-of-k1: add regulator and pinctrl voltage switching support
Date: Mon, 30 Mar 2026 17:15:34 +0800	[thread overview]
Message-ID: <aco_NocWwrkGdTaK@kernel.org> (raw)
In-Reply-To: <20260330-orangepi-sd-card-uhs-v5-3-bd853604322d@gmail.com>

On Mon, Mar 30, 2026 at 16:38:04 CST, Iker Pedrosa wrote:
> Add voltage switching infrastructure for UHS-I modes by integrating both
> regulator framework (for supply voltage control) and pinctrl state
> switching (for pin drive strength optimization).
> 
> - Add regulator supply parsing and voltage switching callback
> - Add optional pinctrl state switching between "default" (3.3V) and
>   "state_uhs" (1.8V) configurations
> - Enable coordinated voltage and pin configuration changes for UHS modes
> 
> This provides complete voltage switching support while maintaining
> backward compatibility when pinctrl states are not defined.
> 
> Tested-by: Anand Moon <linux.amoon@gmail.com>
> Tested-by: Trevor Gamblin <tgamblin@baylibre.com>
> Acked-by: Adrian Hunter <adrian.hunter@intel.com>
> Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Reviewed-by: Troy Mitchell <troy.mitchell@linux.dev>

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  reply	other threads:[~2026-03-30  9:15 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-30  8:38 [PATCH v5 0/9] riscv: spacemit: enable SD card support with UHS modes for OrangePi RV2 Iker Pedrosa
2026-03-30  8:38 ` Iker Pedrosa
2026-03-30  8:38 ` [PATCH v5 1/9] dt-bindings: mmc: spacemit,sdhci: add pinctrl support for voltage switching Iker Pedrosa
2026-03-30  8:38   ` Iker Pedrosa
2026-03-31  6:48   ` Krzysztof Kozlowski
2026-03-31  6:48     ` Krzysztof Kozlowski
2026-03-31 10:58     ` Ulf Hansson
2026-03-31 10:58       ` Ulf Hansson
2026-03-31 11:11       ` Krzysztof Kozlowski
2026-03-31 11:11         ` Krzysztof Kozlowski
2026-03-31 11:26         ` Ulf Hansson
2026-03-31 11:26           ` Ulf Hansson
2026-03-30  8:38 ` [PATCH v5 2/9] mmc: sdhci-of-k1: enable essential clock infrastructure for SD operation Iker Pedrosa
2026-03-30  8:38   ` Iker Pedrosa
2026-03-30  9:11   ` Troy Mitchell
2026-03-30  9:11     ` Troy Mitchell
2026-03-30  8:38 ` [PATCH v5 3/9] mmc: sdhci-of-k1: add regulator and pinctrl voltage switching support Iker Pedrosa
2026-03-30  8:38   ` Iker Pedrosa
2026-03-30  9:15   ` Troy Mitchell [this message]
2026-03-30  9:15     ` Troy Mitchell
2026-03-30  8:38 ` [PATCH v5 4/9] mmc: sdhci-of-k1: add comprehensive SDR tuning support Iker Pedrosa
2026-03-30  8:38   ` Iker Pedrosa
2026-03-30  8:38 ` [PATCH v5 5/9] riscv: dts: spacemit: k1: add SD card controller and pinctrl support Iker Pedrosa
2026-03-30  8:38   ` Iker Pedrosa
2026-03-30  9:08   ` Troy Mitchell
2026-03-30  9:08     ` Troy Mitchell
2026-04-01  8:53     ` Iker Pedrosa
2026-04-01  8:53       ` Iker Pedrosa
2026-04-02 11:21       ` Troy Mitchell
2026-04-02 11:21         ` Troy Mitchell
2026-03-30  8:38 ` [PATCH v5 6/9] riscv: dts: spacemit: k1-orangepi-rv2: add PMIC and power infrastructure Iker Pedrosa
2026-03-30  8:38   ` Iker Pedrosa
2026-03-30  8:38 ` [PATCH v5 7/9] riscv: dts: spacemit: k1-orangepi-rv2: add SD card support with UHS modes Iker Pedrosa
2026-03-30  8:38   ` Iker Pedrosa
2026-03-30  8:38 ` [PATCH v5 8/9] riscv: dts: spacemit: k1-bananapi-f3: " Iker Pedrosa
2026-03-30  8:38   ` Iker Pedrosa
2026-03-30  8:38 ` [PATCH v5 9/9] riscv: dts: spacemit: k1-musepi-pro: " Iker Pedrosa
2026-03-30  8:38   ` Iker Pedrosa
2026-03-30  9:19 ` [PATCH v5 0/9] riscv: spacemit: enable SD card support with UHS modes for OrangePi RV2 Michael Opdenacker
2026-03-30  9:19   ` Michael Opdenacker

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