From patchwork Sun Jan 24 20:53:06 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mateusz Kulikowski X-Patchwork-Id: 572366 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 15E88140662 for ; Mon, 25 Jan 2016 07:56:28 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=O35xLbmM; dkim-atps=neutral Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 055CCA74D0; Sun, 24 Jan 2016 21:55:49 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CT78iajBuLEt; Sun, 24 Jan 2016 21:55:48 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id DCED7A7553; Sun, 24 Jan 2016 21:54:43 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id DC6F34BF50 for ; Sun, 24 Jan 2016 21:53:52 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8c0O5KuQtUcd for ; Sun, 24 Jan 2016 21:53:52 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mail-lb0-f194.google.com (mail-lb0-f194.google.com [209.85.217.194]) by theia.denx.de (Postfix) with ESMTPS id 14BEB4BF69 for ; Sun, 24 Jan 2016 21:53:48 +0100 (CET) Received: by mail-lb0-f194.google.com with SMTP id ad5so5456323lbc.3 for ; Sun, 24 Jan 2016 12:53:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=952OO/IfgkBOJKnJuHg1joVdgG7kiEtybeAWy1mEGrI=; b=O35xLbmMEqgen1nhuHDJp9mv2WoMA5uh0Oubdo6I8+g1nk4ZhbIiOPSBqSLNZbsqUQ EDy04nTfYZKaAKDENgp2ARYR6xd63FIallySoZi7GcsFyPBt/di9QWzsCQR2yPNoPTY2 V3cp2rFUTtyl8WJNSCdtaNF+ar6muRp7VcFYq7ta3d4Gscw5SDijTBA9mhOo9n0o4tZW GQQkSkwVgivKT3WITsMaY5EfNwFnfQk4ZAZZVQFQdnMyxmCxT/WqWjYjU5icY0nnY0UC muL846WZkh40jKAvzNeKI/KCqKCKeaE75Z1unRWyrnBuRhff52KiG9D8FlKR2LOt7gpw 5e2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=952OO/IfgkBOJKnJuHg1joVdgG7kiEtybeAWy1mEGrI=; b=fVBhJaVevK9XQO+am52/t6/lrgFW2+6S2gLSxoG8TaG8bMXITsdHa1GTNaW9O14GkC vGErXiwOF6hSFHXJsAF4taHhujWQEIA9r+JaLbNzGj3vz5cNC6W6lGpy2umh5yBbuSUR fu09LQ4bFpS9cZfvWXnJ7M8tj2gJlzfqq3Dlrg/woVa3jU/9cxY6DlAi1kLXwJ18dppo p4SmEpabF5PxSh7+s2HEYdA+A/JkiPUJ1h+TLWVxtWfvx53x0cjpxNrnkQqt0ovZLIsg tG7H7ZHmGz31a2fbo2Ncdc25Vs05q9z9UvyQwLdgg0d9XAvX8llcKV7NsPsO0stqe4FE MwKA== X-Gm-Message-State: AG10YOQhHSag3Y9iJFzeNqeXHHEJ28ND86dGW79j36+TteFhig4trOxpDs9L7WmHBRwRGw== X-Received: by 10.112.161.104 with SMTP id xr8mr5026387lbb.29.1453668828320; Sun, 24 Jan 2016 12:53:48 -0800 (PST) Received: from localhost.localdomain (095160097038.warszawa.vectranet.pl. [95.160.97.38]) by smtp.gmail.com with ESMTPSA id l8sm2265456lfe.24.2016.01.24.12.53.47 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 24 Jan 2016 12:53:47 -0800 (PST) From: Mateusz Kulikowski To: u-boot@lists.denx.de, Przemyslaw Marczak , sk.syed2@gmail.com, Tom Rini , sjoerd.simons@collabora.co.uk Date: Sun, 24 Jan 2016 21:53:06 +0100 Message-Id: <1453668790-20236-15-git-send-email-mateusz.kulikowski@gmail.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1453668790-20236-1-git-send-email-mateusz.kulikowski@gmail.com> References: <1453668790-20236-1-git-send-email-mateusz.kulikowski@gmail.com> Cc: Marek Vasut , Pantelis Antoniou Subject: [U-Boot] [PATCH v2 14/18] pmic: Add support for Qualcomm PM8916 PMIC X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.15 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" This PMIC is connected on SPMI bus so needs SPMI support enabled. Signed-off-by: Mateusz Kulikowski Reviewed-by: Simon Glass Tested-by: Simon Glass --- Changes in v2: - Add reviewed-by - Reordered Kconfig & Makefile (to keep alphabetical ordering) - Added link to dt binding @ help Changes in v1: - Added dt bindings - Reoder includes - Replaced extract_* macros with ordinary shift/mask - Added error checking and whitespaces in probe doc/device-tree-bindings/pmic/pm8916.txt | 18 ++++++ drivers/power/pmic/Kconfig | 16 ++++++ drivers/power/pmic/Makefile | 1 + drivers/power/pmic/pm8916.c | 96 ++++++++++++++++++++++++++++++++ 4 files changed, 131 insertions(+) create mode 100644 doc/device-tree-bindings/pmic/pm8916.txt create mode 100644 drivers/power/pmic/pm8916.c diff --git a/doc/device-tree-bindings/pmic/pm8916.txt b/doc/device-tree-bindings/pmic/pm8916.txt new file mode 100644 index 0000000..15c598b --- /dev/null +++ b/doc/device-tree-bindings/pmic/pm8916.txt @@ -0,0 +1,18 @@ +Qualcomm pm8916 PMIC + +This PMIC is connected using SPMI bus so should be child of SPMI bus controller. + +Required properties: +- compatible: "qcom,spmi-pmic"; +- reg: SPMI Slave ID, size (ignored) +- #address-cells: 0x1 (peripheral ID) +- #size-cells: 0x1 (size of peripheral register space) + +Example: + +pm8916@0 { + compatible = "qcom,spmi-pmic"; + reg = <0x0 0x1>; + #address-cells = <0x1>; + #size-cells = <0x1>; +}; diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index 7f69ae1..69f8d51 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -54,6 +54,22 @@ config DM_PMIC_MAX77686 This config enables implementation of driver-model pmic uclass features for PMIC MAX77686. The driver implements read/write operations. +config PMIC_PM8916 + bool "Enable Driver Model for Qualcomm PM8916 PMIC" + depends on DM_PMIC + ---help--- + The PM8916 is a PMIC connected to one (or several) processors + with SPMI bus. It has 2 slaves with several peripherals: + - 18x LDO + - 4x GPIO + - Power and Reset buttons + - Watchdog + - RTC + - Vibrator drivers + - Others + + Driver binding info: doc/device-tree-bindings/pmic/pm8916.txt + config PMIC_RK808 bool "Enable support for Rockchip PMIC RK808" depends on DM_PMIC diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index c6e8d0c..52b4f71 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_DM_PMIC_PFUZE100) += pfuze100.o obj-$(CONFIG_PMIC_S2MPS11) += s2mps11.o obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o obj-$(CONFIG_PMIC_ACT8846) += act8846.o +obj-$(CONFIG_PMIC_PM8916) += pm8916.o obj-$(CONFIG_PMIC_RK808) += rk808.o obj-$(CONFIG_PMIC_TPS65090) += tps65090.o obj-$(CONFIG_PMIC_S5M8767) += s5m8767.o diff --git a/drivers/power/pmic/pm8916.c b/drivers/power/pmic/pm8916.c new file mode 100644 index 0000000..9acf5f5 --- /dev/null +++ b/drivers/power/pmic/pm8916.c @@ -0,0 +1,96 @@ +/* + * Qualcomm pm8916 pmic driver + * + * (C) Copyright 2015 Mateusz Kulikowski + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +#define PID_SHIFT 8 +#define PID_MASK (0xFF << PID_SHIFT) +#define REG_MASK 0xFF + +struct pm8916_priv { + uint16_t usid; /* Slave ID on SPMI bus */ +}; + +static int pm8916_reg_count(struct udevice *dev) +{ + return 0xFFFF; +} + +static int pm8916_write(struct udevice *dev, uint reg, const uint8_t *buff, + int len) +{ + struct pm8916_priv *priv = dev_get_priv(dev); + + if (len != 1) + return -EINVAL; + + return spmi_reg_write(dev->parent, priv->usid, + (reg & PID_MASK) >> PID_SHIFT, reg & REG_MASK, + *buff); +} + +static int pm8916_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + struct pm8916_priv *priv = dev_get_priv(dev); + int val; + + if (len != 1) + return -EINVAL; + + val = spmi_reg_read(dev->parent, priv->usid, + (reg & PID_MASK) >> PID_SHIFT, reg & REG_MASK); + + if (val < 0) + return val; + *buff = val; + return 0; +} + +static struct dm_pmic_ops pm8916_ops = { + .reg_count = pm8916_reg_count, + .read = pm8916_read, + .write = pm8916_write, +}; + +static const struct udevice_id pm8916_ids[] = { + { .compatible = "qcom,spmi-pmic" }, + { } +}; + +static int pm8916_probe(struct udevice *dev) +{ + struct pm8916_priv *priv = dev_get_priv(dev); + + priv->usid = dev_get_addr(dev); + + if (priv->usid == FDT_ADDR_T_NONE) + return -EINVAL; + + return 0; +} + + +static int pm8916_bind(struct udevice *dev) +{ + return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, false); +} + +U_BOOT_DRIVER(pmic_pm8916) = { + .name = "pmic_pm8916", + .id = UCLASS_PMIC, + .of_match = pm8916_ids, + .bind = pm8916_bind, + .probe = pm8916_probe, + .ops = &pm8916_ops, + .priv_auto_alloc_size = sizeof(struct pm8916_priv), +};