From patchwork Thu Feb 27 09:45:50 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rui Miguel Silva X-Patchwork-Id: 868950 Delivered-To: patch@linaro.org Received: by 2002:a05:6000:1561:b0:38f:210b:807b with SMTP id 1csp177244wrz; Thu, 27 Feb 2025 01:49:42 -0800 (PST) X-Forwarded-Encrypted: i=2; AJvYcCXAgftcDzsHPRD6K/rsiFK6Lzmya6rxDKXgeFDrZdeV+/jIPyBK0fahdQdwKMy8Voa8BG/D2Q==@linaro.org X-Google-Smtp-Source: AGHT+IHAuaVWjbeNtKqULE196yYrM//gCvdzZ2JCEvWcSTygEqiOAUr4/n6OnJX8hGvyQoK0Hm00 X-Received: by 2002:a05:6000:1fae:b0:38d:cbc2:29f6 with SMTP id ffacd0b85a97d-38f6e947434mr19376470f8f.17.1740649782529; Thu, 27 Feb 2025 01:49:42 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1740649782; cv=none; d=google.com; s=arc-20240605; b=h/g0rYQQeqMf74MNRPLgAmjv50VL41Kqwl1bphSHc6uDX58ErRVxgjsaF2ahjdLWFZ ZQndLpbV835j7V9BqRBTy/ptqcjZF49bOS/bPp75Idf9TudBoC1LzWAAsyUrGmKgdgET HkpAXWg9U5/EuvVfhIulPeIGkjqE8aogy/bTsfauFLjvfAlZB2iGE2JaQiH7CFOd17F4 mZRUc4oCp4S/auB3KuXVo9k0ccWgzJvaM54C7MTtIUKcIL2DbDybA3uVE0K4On864dlF E469BY3H/vcrC7MulF5jRXHBhm0ATZ7DOf8DLSN7iunleQOwYkp1FIYrvwr/xbJBYrYi EDUg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=ItIVN/+KCDXhAvBXHfGKjc5Nx01t07WxpKIMElmE6lE=; fh=L4aHpqhSZmrrncxWUXs2AxmsN/1PwyGU4nUjDfqHei8=; b=TrfI/OIJs5cPkWltQmqxynI+uCInQB8AJac/7AAv/TceIr22yNXzOj8jZ33n2AnY2b hKYrrdm7ePIRdL9G5GYcdnTH3gVCNYD/uV4VHa8+mNYhLH+XERMCeMDyn3UAsj4sSmvp 9TtddVHdJ4bO1notmp064nOCZlilq9nt27NQhAXRn6ja8Orenb4ntvooAEMfHTyCqrvd E/9SPlFsDGB/6NbTuKaNiHvgunE6EyD2bc4PsR3efwNdlhD90L+eufquazc/ACeyk4DQ 5O+lfFKDBYHZekoRLiTu6pZ/WG/wGzeNJAZg/p6VEKm8IygxM0g5vufbPNSdipnbSWVg ewCA==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=Oh+qoL1e; spf=pass (google.com: domain of u-boot-bounces@lists.denx.de designates 2a01:238:438b:c500:173d:9f52:ddab:ee01 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Return-Path: Received: from phobos.denx.de (phobos.denx.de. [2a01:238:438b:c500:173d:9f52:ddab:ee01]) by mx.google.com with ESMTPS id ffacd0b85a97d-390e4798425si732171f8f.134.2025.02.27.01.49.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Feb 2025 01:49:42 -0800 (PST) Received-SPF: pass (google.com: domain of u-boot-bounces@lists.denx.de designates 2a01:238:438b:c500:173d:9f52:ddab:ee01 as permitted sender) client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=Oh+qoL1e; spf=pass (google.com: domain of u-boot-bounces@lists.denx.de designates 2a01:238:438b:c500:173d:9f52:ddab:ee01 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org; dara=neutral header.i=@linaro.org Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id D601C8118B; Thu, 27 Feb 2025 10:49:33 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="Oh+qoL1e"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id BFDB7807FB; Thu, 27 Feb 2025 10:49:32 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 Received: from mail-wr1-x430.google.com (mail-wr1-x430.google.com [IPv6:2a00:1450:4864:20::430]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 952B480F12 for ; Thu, 27 Feb 2025 10:49:30 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=rui.silva@linaro.org Received: by mail-wr1-x430.google.com with SMTP id ffacd0b85a97d-390df0138beso368280f8f.0 for ; Thu, 27 Feb 2025 01:49:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1740649770; x=1741254570; darn=lists.denx.de; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ItIVN/+KCDXhAvBXHfGKjc5Nx01t07WxpKIMElmE6lE=; b=Oh+qoL1ekClkJL06OdjzNaxljyRMWU+ty2ugncanascF4DqF1lInZelhHNPp1bJvsT k1OWTpWMFWxhMjdRAyyBLaXZShL3McpSIlpYZGMdlc8RBmEfDVPCT4nHJHDburJv4rYS BD3WozV6mKn8sejUnZgldP04UsfPX4w+fO1SXfz05EEbcdUiHFqkmJ/mw4tn+b37lopz Uy56Fq1B8G3FoqzS2/NXORc+yEcmmk9/ZQSCwKJIxoKzzAtbNlQvAjP6ibi1WmhpBPCh EGuxbRRHc4FWZU0jH/gSYptMgmS6DMSK9PWPwaL/9WjEv4Sr8rb3x+nVU4EOeBxtvn4i SXIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1740649770; x=1741254570; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ItIVN/+KCDXhAvBXHfGKjc5Nx01t07WxpKIMElmE6lE=; b=FYLtmGOY+lT8ZuG3VVPEPBbWeevTsoRs2E3s+B23FasNrX0XVVm5VKI2JX6BoEPjK2 xKdujfHDdjzWMPsfcLQnrdwEUsbopZn1xdtzYPBz+K3wwZoqEgeV6CEjxUnqIEsgD9BC 5oWJS/l+NRWFGIghJlPlHSMZVfDfD6kttw2GqGjNZOVO8uqmSNRxboit4L4FV2+Ybcqw SWVkJWqtotkF3pe8pKgGAMkwo1GTVLnwfuw8DPo0z+kJrBGmmSAUiJiCFYGdxYT/tT4P TIeJSXBbE57eb5AKRGYUaF4S8T6xH8HP4cs9qTKRpLFtG/vDzqBDkHrk+pfhDR0xlpOt QiiQ== X-Forwarded-Encrypted: i=1; AJvYcCWSUKHOV7SQ/n2NONjUsvQXhIgWaq6OMXG+xVeMveoN95UJVVwnKODiuWWSHy57eT09652xNd0=@lists.denx.de X-Gm-Message-State: AOJu0YxiVvetCxpkttmc6SmcafGkUFWUl+E1jaG7p1/mRqLNH6WczEYE UIKYzd4SMT7zrkF35M31k5sSYP87T9UhYsmElu9ARgxse/VCcifesYECR0sMGDI= X-Gm-Gg: ASbGncsppYZEwpZAtV/n1ULLvZyPRHyvrahpAHVpaj8kZ9px7UTKhXBbSRFhlqQCOyp SojkQukHwerbRgyQy2xVTPxGJ5fqdXkPCESuQsY4YGmNazwfTZH66R2FC2I7xEJWNjTfQN6c6uE iGzaBCLxnmcYjEd6vlA/0Kw3hA/yvmjzOBlYqCebEPrDuH3OHKDYAhkT707w2DhCiqspBSNolqZ YMbPBZJ9ig624QenKPpQBeyqabTKiDWZG4yclGkiYQZPcjhIbbt6OVjRksBl4FCduWAdjVOfv6v guAG+XmtZw928tgpRp8uzRzYX10eQGNxi0fwHjpCLonfJOrRzt5J9HNpbxkymqM= X-Received: by 2002:a05:6000:1a87:b0:390:dfe9:1866 with SMTP id ffacd0b85a97d-390dfe91c49mr2090002f8f.4.1740649770002; Thu, 27 Feb 2025 01:49:30 -0800 (PST) Received: from arch-thunder.local (a109-49-32-45.cpe.netcabo.pt. [109.49.32.45]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-390e47a6a4asm1506162f8f.34.2025.02.27.01.49.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Feb 2025 01:49:29 -0800 (PST) From: Rui Miguel Silva To: Neil Armstrong , Caleb Connolly , Jaehoon Chung Cc: u-boot-qcom@groups.io, u-boot@lists.denx.de, Tom Rini , Rui Miguel Silva Subject: [PATCH 2/2] power: regulator: add qcom-usb-vbus Date: Thu, 27 Feb 2025 09:45:50 +0000 Message-ID: <20250227094911.497219-3-rui.silva@linaro.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250227094911.497219-1-rui.silva@linaro.org> References: <20250227094911.497219-1-rui.silva@linaro.org> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Add regulator driver that allow some Qualcomm PMIC to feed VBUS output to peripherals that are connected. Signed-off-by: Rui Miguel Silva --- drivers/power/regulator/Kconfig | 7 ++ drivers/power/regulator/Makefile | 1 + .../power/regulator/qcom_usb_vbus_regulator.c | 111 ++++++++++++++++++ 3 files changed, 119 insertions(+) create mode 100644 drivers/power/regulator/qcom_usb_vbus_regulator.c diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig index 958f337c7e73..558133e09bf8 100644 --- a/drivers/power/regulator/Kconfig +++ b/drivers/power/regulator/Kconfig @@ -224,6 +224,13 @@ config DM_REGULATOR_QCOM_RPMH implements get/set api for a limited set of regulators used by u-boot. +config DM_REGULATOR_QCOM_USB_VBUS + bool "Enable driver model for Qualcomm USB vbus regulator" + depends on DM_REGULATOR + ---help--- + Enable support for the Qualcomm USB Vbus regulator. The driver + implements get/set api for the regulator to be used by u-boot. + config SPL_DM_REGULATOR_GPIO bool "Enable Driver Model for GPIO REGULATOR in SPL" depends on DM_REGULATOR_GPIO && SPL_GPIO diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile index ca6c89d13b5c..a4191b9302b1 100644 --- a/drivers/power/regulator/Makefile +++ b/drivers/power/regulator/Makefile @@ -22,6 +22,7 @@ obj-$(CONFIG_$(XPL_)DM_REGULATOR_COMMON) += regulator_common.o obj-$(CONFIG_$(XPL_)DM_REGULATOR_FIXED) += fixed.o obj-$(CONFIG_$(XPL_)DM_REGULATOR_GPIO) += gpio-regulator.o obj-$(CONFIG_DM_REGULATOR_QCOM_RPMH) += qcom-rpmh-regulator.o +obj-$(CONFIG_DM_REGULATOR_QCOM_USB_VBUS) += qcom_usb_vbus_regulator.o obj-$(CONFIG_$(PHASE_)REGULATOR_RK8XX) += rk8xx.o obj-$(CONFIG_DM_REGULATOR_S2MPS11) += s2mps11_regulator.o obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o diff --git a/drivers/power/regulator/qcom_usb_vbus_regulator.c b/drivers/power/regulator/qcom_usb_vbus_regulator.c new file mode 100644 index 000000000000..2d58ef5e111e --- /dev/null +++ b/drivers/power/regulator/qcom_usb_vbus_regulator.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Copyright (c) 2025, Linaro Limited + */ +#define pr_fmt(fmt) "qcom_usb_vbus: " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define CMD_OTG 0x50 +#define OTG_EN BIT(0) +// The 0 bit in this register's bit field is undocumented +#define OTG_CFG 0x56 +#define OTG_EN_SRC_CFG BIT(1) + +struct qcom_usb_vbus_priv { + phys_addr_t base; +}; + +static int qcom_usb_vbus_regulator_of_to_plat(struct udevice *dev) +{ + struct qcom_usb_vbus_priv *priv = dev_get_priv(dev); + + priv->base = dev_read_addr(dev); + if (priv->base == FDT_ADDR_T_NONE) + return -EINVAL; + + return 0; +} + +static int qcom_usb_vbus_regulator_get_enable(struct udevice *dev) +{ + struct qcom_usb_vbus_priv *priv = dev_get_priv(dev); + int otg_en_reg = priv->base + CMD_OTG; + int ret; + + ret = pmic_reg_read(dev->parent, otg_en_reg); + if (ret < 0) + log_err("failed to read usb vbus: %d\n", ret); + else + ret &= OTG_EN; + + return ret; +} + +static int qcom_usb_vbus_regulator_set_enable(struct udevice *dev, bool enable) +{ + struct qcom_usb_vbus_priv *priv = dev_get_priv(dev); + int otg_en_reg = priv->base + CMD_OTG; + int ret; + + if (enable) { + ret = pmic_clrsetbits(dev->parent, otg_en_reg, 0, OTG_EN); + if (ret < 0) { + log_err("error enabling: %d\n", ret); + return ret; + } + } else { + ret = pmic_clrsetbits(dev->parent, otg_en_reg, OTG_EN, 0); + if (ret < 0) { + log_err("error disabling: %d\n", ret); + return ret; + } + } + + return 0; +} + +static int qcom_usb_vbus_regulator_probe(struct udevice *dev) +{ + struct qcom_usb_vbus_priv *priv = dev_get_priv(dev); + int otg_cfg_reg = priv->base + OTG_CFG; + int ret; + + /* Disable HW logic for VBUS enable */ + ret = pmic_clrsetbits(dev->parent, otg_cfg_reg, OTG_EN_SRC_CFG, 0); + if (ret < 0) { + log_err("error setting EN_SRC_CFG: %d\n", ret); + return ret; + } + + return 0; +} + +static const struct dm_regulator_ops qcom_usb_vbus_regulator_ops = { + .get_enable = qcom_usb_vbus_regulator_get_enable, + .set_enable = qcom_usb_vbus_regulator_set_enable, +}; + +static const struct udevice_id qcom_usb_vbus_regulator_ids[] = { + { .compatible = "qcom,pm8150b-vbus-reg"}, + { }, +}; + +U_BOOT_DRIVER(qcom_usb_vbus_regulator) = { + .name = "qcom-usb-vbus-regulator", + .id = UCLASS_REGULATOR, + .of_match = qcom_usb_vbus_regulator_ids, + .of_to_plat = qcom_usb_vbus_regulator_of_to_plat, + .ops = &qcom_usb_vbus_regulator_ops, + .probe = qcom_usb_vbus_regulator_probe, + .priv_auto = sizeof(struct qcom_usb_vbus_priv), +};