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Tue, 6 Feb 2024 05:03:45 -0700 Received: from virtualbox.microchip.com (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Tue, 6 Feb 2024 05:03:43 -0700 From: Mihai Sain To: , , , , , , , , CC: Mihai Sain Subject: [PATCH v3 6/8] ARM: dts: microchip: sama5d29_curiosity: Add power-supply properties for sdmmc nodes Date: Tue, 6 Feb 2024 14:03:20 +0200 Message-ID: <20240206120322.88907-7-mihai.sain@microchip.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240206120322.88907-1-mihai.sain@microchip.com> References: <20240206120322.88907-1-mihai.sain@microchip.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790151390490637298 X-GMAIL-MSGID: 1790151390490637298 The sdmmc0 and sdmmc1 controllers are powered from 3.3V regulator. Add vmmc-supply and vqmmc-supply properties to sdmmc nodes. The sdmmc controller from SAMA5D2 MPU has support for IO voltage signaling/switching required by the UHS sd-card. In order to avoid the issues from the tuning procedure required by the UHS cards, keep the vqmmc at 3V3 to use the sd high-speed mode. Signed-off-by: Mihai Sain --- arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts index 6b02b7bcfd49..4a86597d089a 100644 --- a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts +++ b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts @@ -504,6 +504,8 @@ &sdmmc0 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_sdmmc0_default>; disable-wp; + vmmc-supply = <&vdd_3v3>; + vqmmc-supply = <&vdd_3v3>; status = "okay"; }; @@ -512,6 +514,8 @@ &sdmmc1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_sdmmc1_default>; disable-wp; + vmmc-supply = <&vdd_3v3>; + vqmmc-supply = <&vdd_3v3>; status = "okay"; };