From nobody Wed Oct 15 22:54:36 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C4FE921A845; Sun, 24 Mar 2024 23:36:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711323375; cv=none; b=qY+Fl1vPv7uT8NQB7E4QneAIdUbLa4KOS3ZOG/X6IkL0hq+I5yJvlBMS8emCb0SzTVBNaUi09FrEWE/cG9jvRlCroUWizAbt2577qTOiae4Ua28e6u8vO4NluZTbsxhM6qJnxr4LWX6f04gJWB0EYFDIW7iXv72COYJ2yll91RM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711323375; c=relaxed/simple; bh=OS5zuo+iync0mDbQnZFjx0V3Vp7CnOy6d7KfG2EH3YI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=TzpN4PklohrhmW75rhXGim1vzeyUVjp7sjElzohgp0UCKJeRaUlHZ3eW4An2ecXT4D2QoSlKtIg1Qa00w9PnJKNSppq80cnN8KoL6lfE9qqoUqp/LrC4bg01GcNWxgsjPRPb4Q+ME+gJgjytQV0gt8fL77TdssQMFgyD8B24Ecs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iwHSZ4Gx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="iwHSZ4Gx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EFC7BC433C7; Sun, 24 Mar 2024 23:36:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711323374; bh=OS5zuo+iync0mDbQnZFjx0V3Vp7CnOy6d7KfG2EH3YI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iwHSZ4GxOoQxLLrhtQ+SHB0kalt+XeljAZzKHEZcvCQ0btRSxcMfU9cPL0Mb7DNze LN+q0Rl9q/TrQEmo/HC3ncZVHyZwRBE1NA4uWZ+dRqGUBjDQBmL3HuJoGcEVsz+pBB oVqADtYXOJp4gOQpujaW6pTytD5JL3zT+JaO/ov+BkLEIMTYNp0/dU+E1cj+Zx5OoZ RqfHbAy0Ic0XsVGOIs1OszCaGYnS7B6Jcry90H247XtU3UnA1J+dGwtXfiWYjhs4g8 uGOSvPMnZhHLOpvryoCHEagce197EQiJorBGz8Vd+nxNwe3ZMQjtICoucl32/sBLzv 3R9PIfJOn6aCg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Frieder Schrempf , Heiko Thiery , Shawn Guo , Sasha Levin Subject: [PATCH 5.15 074/317] arm64: dts: imx8mm-kontron: Use the VSELECT signal to switch SD card IO voltage Date: Sun, 24 Mar 2024 19:30:54 -0400 Message-ID: <20240324233458.1352854-75-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240324233458.1352854-1-sashal@kernel.org> References: <20240324233458.1352854-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Frieder Schrempf [ Upstream commit eef2c0217e02b6c7ed5b10b82ea944127145e113 ] It turns out that it is not necessary to declare the VSELECT signal as GPIO and let the PMIC driver set it to a fixed high level. This switches the voltage between 3.3V and 1.8V by setting the PMIC register for LDO5 accordingly. Instead we can do it like other boards already do and simply mux the VSELECT signal of the USDHC interface to the pin. This makes sure that the correct voltage is selected by setting the PMIC's SD_VSEL input to high or low accordingly. Reported-by: Heiko Thiery Signed-off-by: Frieder Schrempf Reviewed-by: Heiko Thiery Signed-off-by: Shawn Guo Stable-dep-of: 008820524844 ("arm64: dts: imx8mm-kontron: Disable pull resi= stors for SD card signals on BL board") Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts | 3 +++ arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi | 2 -- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts b/arc= h/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts index 25886622c8c40..00dff7c33310c 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts @@ -321,6 +321,7 @@ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d0 MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d0 MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d0 MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019 + MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0 >; }; =20 @@ -333,6 +334,7 @@ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d4 MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d4 MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d4 MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019 + MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0 >; }; =20 @@ -345,6 +347,7 @@ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d6 MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d6 MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d6 MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019 + MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0 >; }; }; diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/= arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi index 1b9fc3a926fcb..646615ca4b48b 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi @@ -86,7 +86,6 @@ pca9450: pmic@25 { pinctrl-0 =3D <&pinctrl_pmic>; interrupt-parent =3D <&gpio1>; interrupts =3D <0 IRQ_TYPE_LEVEL_LOW>; - sd-vsel-gpios =3D <&gpio1 4 GPIO_ACTIVE_HIGH>; =20 regulators { reg_vdd_soc: BUCK1 { @@ -229,7 +228,6 @@ MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA 0x40000083 pinctrl_pmic: pmicgrp { fsl,pins =3D < MX8MM_IOMUXC_GPIO1_IO00_GPIO1_IO0 0x141 - MX8MM_IOMUXC_GPIO1_IO04_GPIO1_IO4 0x141 >; }; =20 --=20 2.43.0