From patchwork Tue Nov 19 16:01:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Birsan X-Patchwork-Id: 13880222 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 47611D4417D for ; Tue, 19 Nov 2024 16:03:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=VBHmSGGoFGws0gUWk12eJKyQ+GybId9GUjoGMOIxfO4=; b=FQy0Z/WlT1jIhXgVGvlYMApEVZ +fvVmPV+JUS3GExswX4JFxE7QLe4Zn0XLH2vNjBcuZ8fkxn/BpltFXxSNa03ccSXkdRw1XYtyU6o7 a/n7rItSF8JFEN8hUOKAM/vmOCYym/C/RofZC9iPhUCg5Q9tCCndOTXkJNaWjBAPugxv9qPju5TvK M0tHCJf4IKYPuPERaNqN1cilKtsyC/ZRCgRESz5Rj8khtMmy84t1dVB84FNmghTV7Z3ndmEw+t+ky QdJDoCkHBvvotOpUZxGWnDmEvNVk2cNPl1ICorKIlcIaEYBKEYP+FLt3K4El+1yUuBJ63GGo7hSZD sT3BygnQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tDQh9-0000000CxsG-13N8; Tue, 19 Nov 2024 16:03:15 +0000 Received: from esa.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tDQeQ-0000000CxQD-1emA for linux-arm-kernel@lists.infradead.org; Tue, 19 Nov 2024 16:00:27 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1732032027; x=1763568027; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=PG6VH6poG77y4wIxB0EeV+toD0HtWQliEBYkvGMzVwU=; b=hECG18y96rxC69stRnk7og+70ZKUbFW5HKfawMrWAfbK976V578dewEc VsIn8S/gF2yoxhOcGl8JWad3uEoLpYp/FWsxljbfhgLBMVkNMsfkTjexL sHs3qua+GarmirTJ3ob9DXL03GyfdM8ildlLVOZU36/xvMbuDMC1Xm0jF 7NZvO0T8dzVQF5uxxHQKddq51unfJydPmTVQQEkd9cPB3x5ii73UgOdNp kRsAx2euRa/cYboTgOrqffV/j42HZA8AQE9spGdGwhV7Q5QnIvUzcG9/E Gj2+Mk2/PaUTyr7/+HtBab/HYFe9TwsVXoi0PscfE7xPHG4MBnaXdBm9O A==; X-CSE-ConnectionGUID: 46Cw/aZBStWTzefJ58UrTA== X-CSE-MsgGUID: 0CjZsGGURZu82JzWAfSU8g== X-IronPort-AV: E=Sophos;i="6.12,166,1728975600"; d="scan'208";a="265672241" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa5.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 19 Nov 2024 09:00:26 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 19 Nov 2024 09:00:07 -0700 Received: from ROB-ULT-M91496.microchip.com (10.10.85.11) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Tue, 19 Nov 2024 09:00:05 -0700 From: To: , , , , , CC: , , , Cristian Birsan , Mihai Sain Subject: [PATCH 1/2] ARM: dts: microchip: sama5d29_curiosity: Add no-1-8-v property to sdmmc0 node Date: Tue, 19 Nov 2024 18:01:06 +0200 Message-ID: <20241119160107.598411-2-cristian.birsan@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241119160107.598411-1-cristian.birsan@microchip.com> References: <20241119160107.598411-1-cristian.birsan@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241119_080026_442467_129319A1 X-CRM114-Status: GOOD ( 11.37 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Cristian Birsan Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V. This property will stop the LDO regulator from switching to 1.8V when the MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the SDMMC interface pins in GPIO mode (PA0 - PA13). On this board, PA6 is used as GPIO to enable the power switch controlling USB Vbus for the USB Host. The change is needed to fix the PA6 voltage level to 3.3V instead of 1.8V. Fixes: d85c4229e925 ("ARM: dts: at91: sama5d29_curiosity: Add device tree for sama5d29_curiosity board") Suggested-by: Mihai Sain Signed-off-by: Cristian Birsan Tested-by: Andrei Simion --- arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts index 951a0c97d3c6..5933840bb8f7 100644 --- a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts +++ b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts @@ -514,6 +514,7 @@ kernel@200000 { &sdmmc0 { bus-width = <4>; + no-1-8-v; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_sdmmc0_default>; disable-wp;