Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp337170imu; Wed, 2 Jan 2019 07:38:23 -0800 (PST) X-Google-Smtp-Source: AFSGD/X+kybB6Dmbw57FHWKMHMCdAkW2mlkg3W4kZTjv8NhnS6Ha/N2stwewegvpfk8zlGN7VYdz X-Received: by 2002:aa7:868f:: with SMTP id d15mr44294367pfo.225.1546443503886; Wed, 02 Jan 2019 07:38:23 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1546443503; cv=none; d=google.com; s=arc-20160816; b=neyFy6i/T11DA7eJc4CMJTO6Ts82PzZmFyBMVN//9SIJhBq24Q5zmGmZKZeU6lBMd9 NcKeSpz9MVvzU+kGwEto1nlyifSvxVhB09Cmj5c/6LD3gbYWJhXJLj5/PcG9VzY5FJ6t OdbsTfnYxhXi4+KHKn3XURhC0DvkUEuho56M/vL6TLjSUGk5YZIBxm4qH+0DSQ069dSh SdCGvRKwD76d92ABy0vRoFFr/Pahlq8vGeRbeAqSE7DFfccEaHomUBQMGKJN6AB8f8QB +jgsm/PlbHVj5R3qIpDpXOKmk3HZP+/R7B2auhvMe8cDy2VgM9OUCHYMlPr43J1xnzF2 hCRg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from; bh=QGcSLwwi7Cm6xci6NO/DJBE4jYLHe3Ebb9b/vspMcLE=; b=I60ERVBGqNOIcz4ZDaN6k1s5GEUMZOFyYZKjtzOjl9QZoO6gFgUqXTr4wuM1iKphVo pfnUdW+eWqVNWvpsOho2Ptl2E/LzDxHxc/VJHls3oPVMURuNjaUWytq2l1gM+rN6iqLd gdWt943zkaZWmwcSMi+C4W/WObI7P/lAIKvpj6e8ZqMU8tiybEsy4mf8/TYDMo110FMH GjQ7ogP3y85Fz1eiDbi3cDcAtOjrkEeBYn5T8Lnn63Bdyolmnz4v2zZlPStG89IRfphE ucoPtLo01paiwVy2+mpYkZmwRLUW/C3gMSr5PHFNtHQcm1VDXU9MvuONV7Db5uJb8b3g ukmA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id h127si20461871pfe.204.2019.01.02.07.38.06; Wed, 02 Jan 2019 07:38:23 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729643AbfABOKm (ORCPT + 99 others); Wed, 2 Jan 2019 09:10:42 -0500 Received: from mailgw02.mediatek.com ([210.61.82.184]:63610 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728120AbfABOKj (ORCPT ); Wed, 2 Jan 2019 09:10:39 -0500 X-UUID: fe923f2136f449f983b8e467207fae96-20190102 X-UUID: fe923f2136f449f983b8e467207fae96-20190102 Received: from mtkcas08.mediatek.inc [(172.21.101.126)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1379747265; Wed, 02 Jan 2019 22:10:28 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs03n2.mediatek.inc (172.21.101.182) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 2 Jan 2019 22:10:27 +0800 Received: from mtkslt205.mediatek.inc (10.21.15.75) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Wed, 2 Jan 2019 22:10:27 +0800 From: Henry Chen To: Viresh Kumar , Stephen Boyd , Rob Herring , Matthias Brugger , Ulf Hansson CC: Mark Rutland , Fan Chen , Weiyi Lu , James Liao , Kees Cook , , , , , , Henry Chen Subject: [RFC RESEND PATCH 6/7] soc: mediatek: add MT8183 dvfsrc support Date: Wed, 2 Jan 2019 22:09:57 +0800 Message-ID: <1546438198-1677-7-git-send-email-henryc.chen@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1546438198-1677-1-git-send-email-henryc.chen@mediatek.com> References: <1546438198-1677-1-git-send-email-henryc.chen@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-TM-SNTS-SMTP: E10FCC4F682BDA6C4F138B72641C3416FFA4C53FC172E292BE6F8853BE9896202000:8 X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add dvfsrc driver for MT8183 Signed-off-by: Henry Chen --- drivers/soc/mediatek/Kconfig | 15 ++ drivers/soc/mediatek/Makefile | 1 + drivers/soc/mediatek/mtk-dvfsrc.c | 473 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 489 insertions(+) create mode 100644 drivers/soc/mediatek/mtk-dvfsrc.c diff --git a/drivers/soc/mediatek/Kconfig b/drivers/soc/mediatek/Kconfig index a7d0667..f956f03 100644 --- a/drivers/soc/mediatek/Kconfig +++ b/drivers/soc/mediatek/Kconfig @@ -12,6 +12,21 @@ config MTK_INFRACFG INFRACFG controller contains various infrastructure registers not directly associated to any device. +config MTK_DVFSRC + bool "MediaTek DVFSRC Support" + depends on ARCH_MEDIATEK + default ARCH_MEDIATEK + select REGMAP + select MTK_INFRACFG + select PM_GENERIC_DOMAINS if PM + depends on MTK_SCPSYS + help + Say yes here to add support for the MediaTek DVFSRC found + on different MediaTek SoCs. The DVFSRC is a proprietary + hardware which is used to collect all the requests from + system and turn into the decision of minimum Vcore voltage + and minimum DRAM frequency to fulfill those requests. + config MTK_PMIC_WRAP tristate "MediaTek PMIC Wrapper Support" depends on RESET_CONTROLLER diff --git a/drivers/soc/mediatek/Makefile b/drivers/soc/mediatek/Makefile index 9dc6670..5c010b9 100644 --- a/drivers/soc/mediatek/Makefile +++ b/drivers/soc/mediatek/Makefile @@ -1,3 +1,4 @@ +obj-$(CONFIG_MTK_DVFSRC) += mtk-dvfsrc.o obj-$(CONFIG_MTK_INFRACFG) += mtk-infracfg.o mtk-scpsys-ext.o obj-$(CONFIG_MTK_PMIC_WRAP) += mtk-pmic-wrap.o obj-$(CONFIG_MTK_SCPSYS) += mtk-scpsys.o diff --git a/drivers/soc/mediatek/mtk-dvfsrc.c b/drivers/soc/mediatek/mtk-dvfsrc.c new file mode 100644 index 0000000..af462a3 --- /dev/null +++ b/drivers/soc/mediatek/mtk-dvfsrc.c @@ -0,0 +1,473 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 MediaTek Inc. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "mtk-scpsys.h" + +#define DVFSRC_IDLE 0x00 +#define DVFSRC_GET_TARGET_LEVEL(x) (((x) >> 0) & 0x0000ffff) +#define DVFSRC_GET_CURRENT_LEVEL(x) (((x) >> 16) & 0x0000ffff) + +/* macro for irq */ +#define DVFSRC_IRQ_TIMEOUT_EN BIT(1) + +struct dvfsrc_opp { + int vcore_opp; + int dram_opp; +}; + +struct dvfsrc_domain { + int id; + int state; +}; + +struct mtk_dvfsrc; +struct dvfsrc_soc_data { + const int *regs; + int num_opp; + int num_domains; + int dram_sft; + int vcore_sft; + const struct dvfsrc_opp **opps; + struct dvfsrc_domain *domains; + void (*init_soc)(struct mtk_dvfsrc *dvfsrc); + int (*get_target_level)(struct mtk_dvfsrc *dvfsrc); + int (*get_current_level)(struct mtk_dvfsrc *dvfsrc); +}; + +struct mtk_dvfsrc { + struct device *dev; + struct clk *clk_dvfsrc; + const struct dvfsrc_soc_data *dvd; + int dram_type; + int irq; + void __iomem *regs; + struct mutex lock; /* generic mutex for dvfsrc driver */ + + struct notifier_block qos_notifier; + struct notifier_block scpsys_notifier; +}; + +static u32 dvfsrc_read(struct mtk_dvfsrc *dvfs, u32 offset) +{ + return readl(dvfs->regs + dvfs->dvd->regs[offset]); +} + +static void dvfsrc_write(struct mtk_dvfsrc *dvfs, u32 offset, u32 val) +{ + writel(val, dvfs->regs + dvfs->dvd->regs[offset]); +} + +enum dvfsrc_regs { + DVFSRC_BASIC_CONTROL, + DVFSRC_SW_REQ, + DVFSRC_SW_REQ2, + DVFSRC_EMI_REQUEST, + DVFSRC_EMI_REQUEST2, + DVFSRC_EMI_REQUEST3, + DVFSRC_EMI_QOS0, + DVFSRC_EMI_QOS1, + DVFSRC_EMI_QOS2, + DVFSRC_EMI_MD2SPM0, + DVFSRC_EMI_MD2SPM1, + DVFSRC_VCORE_REQUEST, + DVFSRC_VCORE_REQUEST2, + DVFSRC_VCORE_MD2SPM0, + DVFSRC_INT, + DVFSRC_INT_EN, + DVFSRC_INT_CLR, + DVFSRC_TIMEOUT_NEXTREQ, + DVFSRC_LEVEL, + DVFSRC_LEVEL_LABEL_0_1, + DVFSRC_LEVEL_LABEL_2_3, + DVFSRC_LEVEL_LABEL_4_5, + DVFSRC_LEVEL_LABEL_6_7, + DVFSRC_LEVEL_LABEL_8_9, + DVFSRC_LEVEL_LABEL_10_11, + DVFSRC_LEVEL_LABEL_12_13, + DVFSRC_LEVEL_LABEL_14_15, + DVFSRC_SW_BW_0, + DVFSRC_QOS_EN, + DVFSRC_FORCE, + DVFSRC_LAST, + DVFSRC_RSRV_0, + DVFSRC_RSRV_1, +}; + +static int mt8183_regs[] = { + [DVFSRC_BASIC_CONTROL] = 0x0, + [DVFSRC_SW_REQ] = 0x4, + [DVFSRC_SW_REQ2] = 0x8, + [DVFSRC_EMI_REQUEST] = 0xC, + [DVFSRC_EMI_REQUEST2] = 0x10, + [DVFSRC_EMI_REQUEST3] = 0x14, + [DVFSRC_EMI_QOS0] = 0x24, + [DVFSRC_EMI_QOS1] = 0x28, + [DVFSRC_EMI_QOS2] = 0x2C, + [DVFSRC_EMI_MD2SPM0] = 0x30, + [DVFSRC_EMI_MD2SPM1] = 0x34, + [DVFSRC_VCORE_REQUEST] = 0x48, + [DVFSRC_VCORE_REQUEST2] = 0x4C, + [DVFSRC_VCORE_MD2SPM0] = 0x68, + [DVFSRC_INT] = 0x98, + [DVFSRC_INT_EN] = 0x9C, + [DVFSRC_INT_CLR] = 0xA0, + [DVFSRC_TIMEOUT_NEXTREQ] = 0xD8, + [DVFSRC_LEVEL] = 0xDC, + [DVFSRC_LEVEL_LABEL_0_1] = 0xE0, + [DVFSRC_LEVEL_LABEL_2_3] = 0xE4, + [DVFSRC_LEVEL_LABEL_4_5] = 0xE8, + [DVFSRC_LEVEL_LABEL_6_7] = 0xEC, + [DVFSRC_LEVEL_LABEL_8_9] = 0xF0, + [DVFSRC_LEVEL_LABEL_10_11] = 0xF4, + [DVFSRC_LEVEL_LABEL_12_13] = 0xF8, + [DVFSRC_LEVEL_LABEL_14_15] = 0xFC, + [DVFSRC_SW_BW_0] = 0x160, + [DVFSRC_QOS_EN] = 0x180, + [DVFSRC_FORCE] = 0x300, + [DVFSRC_LAST] = 0x308, + [DVFSRC_RSRV_0] = 0x600, + [DVFSRC_RSRV_1] = 0x604, +}; + +static bool dvfsrc_is_idle(struct mtk_dvfsrc *dvfsrc) +{ + int val = 0; + + if (dvfsrc->dvd->get_target_level) + val = dvfsrc->dvd->get_target_level(dvfsrc); + + return val == DVFSRC_IDLE; +} + +static int dvfsrc_wait_for_state(struct mtk_dvfsrc *dvfsrc, + bool (*fp)(struct mtk_dvfsrc *)) +{ + unsigned long timeout; + + timeout = jiffies + usecs_to_jiffies(1000); + + do { + if (fp(dvfsrc)) + return 0; + } while (!time_after(jiffies, timeout)); + + return -ETIMEDOUT; +} + +static void mtk_dvfsrc_mt8183_init(struct mtk_dvfsrc *dvfsrc) +{ + struct arm_smccc_res res; + + mutex_lock(&dvfsrc->lock); + + arm_smccc_smc(MTK_SIP_SPM, MTK_SIP_SPM_DVFSRC_INIT, 0, 0, 0, 0, 0, 0, + &res); + + dvfsrc_write(dvfsrc, DVFSRC_LEVEL_LABEL_0_1, 0x00100000); + + dvfsrc_write(dvfsrc, DVFSRC_LEVEL_LABEL_2_3, 0x00210011); + dvfsrc_write(dvfsrc, DVFSRC_LEVEL_LABEL_4_5, 0x01100100); + dvfsrc_write(dvfsrc, DVFSRC_LEVEL_LABEL_6_7, 0x01210111); + dvfsrc_write(dvfsrc, DVFSRC_LEVEL_LABEL_8_9, 0x02100200); + dvfsrc_write(dvfsrc, DVFSRC_LEVEL_LABEL_10_11, 0x02210211); + dvfsrc_write(dvfsrc, DVFSRC_LEVEL_LABEL_12_13, 0x03210321); + dvfsrc_write(dvfsrc, DVFSRC_LEVEL_LABEL_14_15, 0x03210321); + + /* EMI/VCORE HRT, MD2SPM, BW setting */ + dvfsrc_write(dvfsrc, DVFSRC_EMI_QOS0, 0x32); + dvfsrc_write(dvfsrc, DVFSRC_EMI_QOS1, 0x66); + dvfsrc_write(dvfsrc, DVFSRC_EMI_MD2SPM0, 0x80F8); + dvfsrc_write(dvfsrc, DVFSRC_EMI_MD2SPM1, 0x0); + dvfsrc_write(dvfsrc, DVFSRC_VCORE_MD2SPM0, 0x80C0); + + dvfsrc_write(dvfsrc, DVFSRC_RSRV_1, 0x0000001C); + dvfsrc_write(dvfsrc, DVFSRC_TIMEOUT_NEXTREQ, 0x00000013); + dvfsrc_write(dvfsrc, DVFSRC_INT_EN, 0x2); + + dvfsrc_write(dvfsrc, DVFSRC_EMI_REQUEST, 0x00290209); + dvfsrc_write(dvfsrc, DVFSRC_EMI_REQUEST2, 0); + + dvfsrc_write(dvfsrc, DVFSRC_VCORE_REQUEST, 0x00150000); + + dvfsrc_write(dvfsrc, DVFSRC_QOS_EN, 0x0000407F); + dvfsrc_write(dvfsrc, DVFSRC_EMI_REQUEST3, 0x09000000); + + dvfsrc_write(dvfsrc, DVFSRC_FORCE, 0x00400000); + dvfsrc_write(dvfsrc, DVFSRC_BASIC_CONTROL, 0x0000C07B); + dvfsrc_write(dvfsrc, DVFSRC_BASIC_CONTROL, 0x0000017B); + + dvfsrc_write(dvfsrc, DVFSRC_VCORE_REQUEST, + (dvfsrc_read(dvfsrc, DVFSRC_VCORE_REQUEST) + & ~(0x3 << 20))); + dvfsrc_write(dvfsrc, DVFSRC_EMI_REQUEST, + (dvfsrc_read(dvfsrc, DVFSRC_EMI_REQUEST) + & ~(0x3 << 20))); + + mutex_unlock(&dvfsrc->lock); +} + +static int mt8183_get_target_level(struct mtk_dvfsrc *dvfsrc) +{ + return DVFSRC_GET_TARGET_LEVEL(dvfsrc_read(dvfsrc, DVFSRC_LEVEL)); +} + +static int mt8183_get_current_level(struct mtk_dvfsrc *dvfsrc) +{ + return DVFSRC_GET_CURRENT_LEVEL(dvfsrc_read(dvfsrc, DVFSRC_LEVEL)); +} + +static int get_cur_performance_level(struct mtk_dvfsrc *dvfsrc) +{ + int bit = 0; + + if (dvfsrc->dvd->get_current_level) + bit = dvfsrc->dvd->get_current_level(dvfsrc); + + return ffs(bit); +} + +static int pm_qos_memory_bw_notify(struct notifier_block *b, + unsigned long bw, void *v) +{ + struct mtk_dvfsrc *dvfsrc; + + dvfsrc = container_of(b, struct mtk_dvfsrc, qos_notifier); + mutex_lock(&dvfsrc->lock); + + dev_dbg(dvfsrc->dev, "data: 0x%lx\n", bw); + dvfsrc_write(dvfsrc, DVFSRC_SW_BW_0, bw / 100); + + mutex_unlock(&dvfsrc->lock); + + return NOTIFY_OK; +} + +static int dvfsrc_set_performace(struct notifier_block *b, + unsigned long l, void *v) +{ + int i, val, highest = 0, vcore_opp = 0, dram_opp = 0; + struct mtk_dvfsrc *dvfsrc; + struct scp_event_data *sc = v; + struct dvfsrc_domain *d; + + if (sc->event_type != MTK_SCPSYS_PSTATE) + return 0; + + dvfsrc = container_of(b, struct mtk_dvfsrc, scpsys_notifier); + + mutex_lock(&dvfsrc->lock); + d = dvfsrc->dvd->domains; + + if (l > dvfsrc->dvd->num_opp || l <= 0) { + dev_err(dvfsrc->dev, "pstate out of range = %ld\n", l); + goto out; + } + + for (i = 0, highest = 0; i < dvfsrc->dvd->num_domains - 1; i++, d++) { + if (sc->domain_id == d->id) + d->state = l; + if (d->state > highest) + highest = d->state; + } + + if (highest == 0) { + dev_err(dvfsrc->dev, "domain not match\n"); + goto out; + } + + /* translate pstate to dvfsrc level, and set it to DVFSRC HW */ + vcore_opp = + dvfsrc->dvd->opps[dvfsrc->dram_type][highest - 1].vcore_opp; + dram_opp = dvfsrc->dvd->opps[dvfsrc->dram_type][highest - 1].dram_opp; + + if (dvfsrc_wait_for_state(dvfsrc, dvfsrc_is_idle)) { + dev_warn(dvfsrc->dev, "[%s] wait idle, last: %d -> %d\n", + __func__, dvfsrc_read(dvfsrc, DVFSRC_LEVEL), + dvfsrc_read(dvfsrc, DVFSRC_LAST)); + goto out; + } + + dvfsrc_write(dvfsrc, DVFSRC_SW_REQ, + dram_opp << dvfsrc->dvd->dram_sft | + vcore_opp << dvfsrc->dvd->vcore_sft); + + if (dvfsrc_wait_for_state(dvfsrc, dvfsrc_is_idle)) { + dev_warn(dvfsrc->dev, "[%s] wait idle, last: %d -> %d\n", + __func__, dvfsrc_read(dvfsrc, DVFSRC_LEVEL), + dvfsrc_read(dvfsrc, DVFSRC_LAST)); + goto out; + } + + val = get_cur_performance_level(dvfsrc); + if (val < highest) { + dev_err(dvfsrc->dev, "current: %d < hightest: %x\n", + highest, val); + } +out: + mutex_unlock(&dvfsrc->lock); + + return 0; +} + +static void pstate_notifier_register(struct mtk_dvfsrc *dvfsrc) +{ + dvfsrc->scpsys_notifier.notifier_call = dvfsrc_set_performace; + register_scpsys_notifier(&dvfsrc->scpsys_notifier); +} + +static void pm_qos_notifier_register(struct mtk_dvfsrc *dvfsrc) +{ + dvfsrc->qos_notifier.notifier_call = pm_qos_memory_bw_notify; + pm_qos_add_notifier(PM_QOS_MEMORY_BANDWIDTH, &dvfsrc->qos_notifier); +} + +static irqreturn_t mtk_dvfsrc_interrupt(int irq, void *dev_id) +{ + u32 val; + struct mtk_dvfsrc *dvfsrc = dev_id; + + val = dvfsrc_read(dvfsrc, DVFSRC_INT); + dvfsrc_write(dvfsrc, DVFSRC_INT_CLR, val); + dvfsrc_write(dvfsrc, DVFSRC_INT_CLR, 0x0); + if (val & DVFSRC_IRQ_TIMEOUT_EN) + dev_warn(dvfsrc->dev, "timeout at spm = %x", val); + + return IRQ_HANDLED; +} + +static int mtk_dvfsrc_probe(struct platform_device *pdev) +{ + struct resource *res; + struct mtk_dvfsrc *dvfsrc; + int ret; + + dvfsrc = devm_kzalloc(&pdev->dev, sizeof(*dvfsrc), GFP_KERNEL); + if (!dvfsrc) + return -ENOMEM; + + dvfsrc->dvd = of_device_get_match_data(&pdev->dev); + dvfsrc->dev = &pdev->dev; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + dvfsrc->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(dvfsrc->regs)) + return PTR_ERR(dvfsrc->regs); + + dvfsrc->clk_dvfsrc = devm_clk_get(dvfsrc->dev, "dvfsrc"); + if (IS_ERR(dvfsrc->clk_dvfsrc)) { + dev_err(dvfsrc->dev, "failed to get clock: %ld\n", + PTR_ERR(dvfsrc->clk_dvfsrc)); + return PTR_ERR(dvfsrc->clk_dvfsrc); + } + + ret = clk_prepare_enable(dvfsrc->clk_dvfsrc); + if (ret) + return ret; + + ret = of_property_read_u32(dvfsrc->dev->of_node, "dram_type", + &dvfsrc->dram_type); + if (ret) { + dev_err(dvfsrc->dev, "failed to get dram_type: %d\n", ret); + clk_disable_unprepare(dvfsrc->clk_dvfsrc); + return ret; + } + + dvfsrc->irq = platform_get_irq(pdev, 0); + ret = request_irq(dvfsrc->irq, mtk_dvfsrc_interrupt + , IRQF_TRIGGER_HIGH, "dvfsrc", dvfsrc); + if (ret) + dev_dbg(dvfsrc->dev, "interrupt not use\n"); + + mutex_init(&dvfsrc->lock); + if (dvfsrc->dvd->init_soc) + dvfsrc->dvd->init_soc(dvfsrc); + + pstate_notifier_register(dvfsrc); + pm_qos_notifier_register(dvfsrc); + platform_set_drvdata(pdev, dvfsrc); + + return 0; +} + +static const struct dvfsrc_opp dvfsrc_opp_mt8183_lp4[] = { + {0, 0}, {1, 0}, {1, 1}, {1, 2}, +}; + +static const struct dvfsrc_opp dvfsrc_opp_mt8183_1p3[] = { + {0, 0}, {0, 1}, {1, 1}, {1, 2}, +}; + +static const struct dvfsrc_opp *dvfsrc_opp_mt8183[] = { + [MT8183_DVFSRC_OPP_LP4] = dvfsrc_opp_mt8183_lp4, + [MT8183_DVFSRC_OPP_LP4X] = dvfsrc_opp_mt8183_1p3, + [MT8183_DVFSRC_OPP_LP3] = dvfsrc_opp_mt8183_1p3, +}; + +static struct dvfsrc_domain dvfsrc_domains_mt8183[] = { + {MT8183_POWER_DOMAIN_MFG_ASYNC, 0}, + {MT8183_POWER_DOMAIN_MFG, 0}, + {MT8183_POWER_DOMAIN_CAM, 0}, + {MT8183_POWER_DOMAIN_DISP, 0}, + {MT8183_POWER_DOMAIN_ISP, 0}, + {MT8183_POWER_DOMAIN_VDEC, 0}, + {MT8183_POWER_DOMAIN_VENC, 0}, +}; + +static const struct dvfsrc_soc_data mt8183_data = { + .opps = dvfsrc_opp_mt8183, + .num_opp = ARRAY_SIZE(dvfsrc_opp_mt8183_lp4), + .regs = mt8183_regs, + .domains = dvfsrc_domains_mt8183, + .num_domains = ARRAY_SIZE(dvfsrc_domains_mt8183), + .init_soc = mtk_dvfsrc_mt8183_init, + .get_target_level = mt8183_get_target_level, + .get_current_level = mt8183_get_current_level, + .dram_sft = 0, + .vcore_sft = 2, +}; + +static int mtk_dvfsrc_remove(struct platform_device *pdev) +{ + return 0; +} + +static const struct of_device_id mtk_dvfsrc_of_match[] = { + { + .compatible = "mediatek,mt8183-dvfsrc", + .data = &mt8183_data, + }, { + /* sentinel */ + }, +}; + +static struct platform_driver mtk_dvfsrc_driver = { + .probe = mtk_dvfsrc_probe, + .remove = mtk_dvfsrc_remove, + .driver = { + .name = "mtk-dvfsrc", + .of_match_table = of_match_ptr(mtk_dvfsrc_of_match), + }, +}; + +builtin_platform_driver(mtk_dvfsrc_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("MTK DVFSRC driver"); -- 1.9.1