From patchwork Mon Aug 31 13:50:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Zhou Yanjie X-Patchwork-Id: 297798 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B3767C433E6 for ; Mon, 31 Aug 2020 13:52:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8DB7F20719 for ; Mon, 31 Aug 2020 13:52:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727933AbgHaNwI (ORCPT ); Mon, 31 Aug 2020 09:52:08 -0400 Received: from out28-3.mail.aliyun.com ([115.124.28.3]:34368 "EHLO out28-3.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726144AbgHaNwF (ORCPT ); Mon, 31 Aug 2020 09:52:05 -0400 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.07436282|-1; CH=green; DM=|CONTINUE|false|; DS=CONTINUE|ham_regular_dialog|0.0129965-0.00708145-0.979922; FP=0|0|0|0|0|-1|-1|-1; HT=e01l10422; MF=zhouyanjie@wanyeetech.com; NM=1; PH=DS; RN=14; RT=14; SR=0; TI=SMTPD_---.IQkeIH2_1598881885; Received: from localhost.localdomain(mailfrom:zhouyanjie@wanyeetech.com fp:SMTPD_---.IQkeIH2_1598881885) by smtp.aliyun-inc.com(10.147.43.230); Mon, 31 Aug 2020 21:51:43 +0800 From: =?utf-8?b?5ZGo55Cw5p2wIChaaG91IFlhbmppZSk=?= To: kishon@ti.com, vkoul@kernel.org, balbi@kernel.org, gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, paul@crapouillou.net, christophe.jaillet@wanadoo.fr, aric.pzqi@ingenic.com, dongsheng.qiu@ingenic.com, rick.tyliu@ingenic.com, yanfei.li@ingenic.com, sernia.zhou@foxmail.com, zhenwenjin@gmail.com Subject: [PATCH v2 1/1] USB: PHY: JZ4770: Use the generic PHY framework. Date: Mon, 31 Aug 2020 21:50:46 +0800 Message-Id: <20200831135046.54460-2-zhouyanjie@wanyeetech.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20200831135046.54460-1-zhouyanjie@wanyeetech.com> References: <20200831135046.54460-1-zhouyanjie@wanyeetech.com> MIME-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Used the generic PHY framework API to create the PHY, and move the driver to driver/phy/ingenic. Tested-by: 周正 (Zhou Zheng) Co-developed-by: 漆鹏振 (Qi Pengzhen) Signed-off-by: 漆鹏振 (Qi Pengzhen) Signed-off-by: 周琰杰 (Zhou Yanjie) --- Notes: v1->v2: Fix bug, ".of_match_table = of_match_ptr(ingenic_usb_phy_of_matches)" is wrong and should be replaced with ".of_match_table = ingenic_usb_phy_of_matches". drivers/phy/Kconfig | 1 + drivers/phy/Makefile | 1 + drivers/phy/ingenic/Kconfig | 12 + drivers/phy/ingenic/Makefile | 2 + .../phy-jz4770.c => phy/ingenic/phy-ingenic-usb.c} | 256 ++++++++++++--------- drivers/usb/phy/Kconfig | 8 - drivers/usb/phy/Makefile | 1 - 7 files changed, 165 insertions(+), 116 deletions(-) create mode 100644 drivers/phy/ingenic/Kconfig create mode 100644 drivers/phy/ingenic/Makefile rename drivers/{usb/phy/phy-jz4770.c => phy/ingenic/phy-ingenic-usb.c} (63%) diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index de9362c25c07..0534b0fdd057 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -55,6 +55,7 @@ source "drivers/phy/broadcom/Kconfig" source "drivers/phy/cadence/Kconfig" source "drivers/phy/freescale/Kconfig" source "drivers/phy/hisilicon/Kconfig" +source "drivers/phy/ingenic/Kconfig" source "drivers/phy/lantiq/Kconfig" source "drivers/phy/marvell/Kconfig" source "drivers/phy/mediatek/Kconfig" diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index c27408e4daae..ab24f0d20763 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -14,6 +14,7 @@ obj-y += allwinner/ \ cadence/ \ freescale/ \ hisilicon/ \ + ingenic/ \ intel/ \ lantiq/ \ marvell/ \ diff --git a/drivers/phy/ingenic/Kconfig b/drivers/phy/ingenic/Kconfig new file mode 100644 index 000000000000..b9581eae89dd --- /dev/null +++ b/drivers/phy/ingenic/Kconfig @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Phy drivers for Ingenic platforms +# +config PHY_INGENIC_USB + tristate "Ingenic SoCs USB PHY Driver" + depends on (MACH_INGENIC && MIPS) || COMPILE_TEST + depends on USB_SUPPORT + select GENERIC_PHY + help + This driver provides USB PHY support for the USB controller found + on the JZ-series and X-series SoCs from Ingenic. diff --git a/drivers/phy/ingenic/Makefile b/drivers/phy/ingenic/Makefile new file mode 100644 index 000000000000..65d5ea00fc9d --- /dev/null +++ b/drivers/phy/ingenic/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-y += phy-ingenic-usb.o diff --git a/drivers/usb/phy/phy-jz4770.c b/drivers/phy/ingenic/phy-ingenic-usb.c similarity index 63% rename from drivers/usb/phy/phy-jz4770.c rename to drivers/phy/ingenic/phy-ingenic-usb.c index f6d3731581eb..86a95b498785 100644 --- a/drivers/usb/phy/phy-jz4770.c +++ b/drivers/phy/ingenic/phy-ingenic-usb.c @@ -7,12 +7,12 @@ */ #include +#include #include #include #include #include -#include -#include +#include /* OTGPHY register offsets */ #define REG_USBPCR_OFFSET 0x00 @@ -97,68 +97,49 @@ enum ingenic_usb_phy_version { struct ingenic_soc_info { enum ingenic_usb_phy_version version; - void (*usb_phy_init)(struct usb_phy *phy); + void (*usb_phy_init)(struct phy *phy); }; -struct jz4770_phy { +struct ingenic_usb_phy { const struct ingenic_soc_info *soc_info; - struct usb_phy phy; - struct usb_otg otg; + struct phy *phy; struct device *dev; void __iomem *base; struct clk *clk; struct regulator *vcc_supply; }; -static inline struct jz4770_phy *otg_to_jz4770_phy(struct usb_otg *otg) +static int ingenic_usb_phy_init(struct phy *phy) { - return container_of(otg, struct jz4770_phy, otg); -} - -static inline struct jz4770_phy *phy_to_jz4770_phy(struct usb_phy *phy) -{ - return container_of(phy, struct jz4770_phy, phy); -} - -static int ingenic_usb_phy_set_peripheral(struct usb_otg *otg, - struct usb_gadget *gadget) -{ - struct jz4770_phy *priv = otg_to_jz4770_phy(otg); - u32 reg; + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); + int err; - if (priv->soc_info->version >= ID_X1000) { - reg = readl(priv->base + REG_USBPCR1_OFFSET); - reg |= USBPCR1_BVLD_REG; - writel(reg, priv->base + REG_USBPCR1_OFFSET); + err = clk_prepare_enable(priv->clk); + if (err) { + dev_err(priv->dev, "Unable to start clock: %d\n", err); + return err; } - reg = readl(priv->base + REG_USBPCR_OFFSET); - reg &= ~USBPCR_USB_MODE; - reg |= USBPCR_VBUSVLDEXT | USBPCR_VBUSVLDEXTSEL | USBPCR_OTG_DISABLE; - writel(reg, priv->base + REG_USBPCR_OFFSET); + priv->soc_info->usb_phy_init(phy); return 0; } -static int ingenic_usb_phy_set_host(struct usb_otg *otg, struct usb_bus *host) +static int ingenic_usb_phy_exit(struct phy *phy) { - struct jz4770_phy *priv = otg_to_jz4770_phy(otg); - u32 reg; + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); - reg = readl(priv->base + REG_USBPCR_OFFSET); - reg &= ~(USBPCR_VBUSVLDEXT | USBPCR_VBUSVLDEXTSEL | USBPCR_OTG_DISABLE); - reg |= USBPCR_USB_MODE; - writel(reg, priv->base + REG_USBPCR_OFFSET); + clk_disable_unprepare(priv->clk); + regulator_disable(priv->vcc_supply); return 0; } -static int ingenic_usb_phy_init(struct usb_phy *phy) +static int ingenic_usb_phy_power_on(struct phy *phy) { - struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); int err; - u32 reg; err = regulator_enable(priv->vcc_supply); if (err) { @@ -166,39 +147,71 @@ static int ingenic_usb_phy_init(struct usb_phy *phy) return err; } - err = clk_prepare_enable(priv->clk); - if (err) { - dev_err(priv->dev, "Unable to start clock: %d\n", err); - return err; - } - - priv->soc_info->usb_phy_init(phy); - - /* Wait for PHY to reset */ - usleep_range(30, 300); - reg = readl(priv->base + REG_USBPCR_OFFSET); - writel(reg & ~USBPCR_POR, priv->base + REG_USBPCR_OFFSET); - usleep_range(300, 1000); - return 0; } -static void ingenic_usb_phy_shutdown(struct usb_phy *phy) +static int ingenic_usb_phy_power_off(struct phy *phy) { - struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); - clk_disable_unprepare(priv->clk); regulator_disable(priv->vcc_supply); + + return 0; } -static void ingenic_usb_phy_remove(void *phy) +static int ingenic_usb_phy_set_mode(struct phy *phy, + enum phy_mode mode, int submode) { - usb_remove_phy(phy); + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); + u32 reg; + + switch (mode) { + case PHY_MODE_USB_HOST: + reg = readl(priv->base + REG_USBPCR_OFFSET); + reg &= ~(USBPCR_VBUSVLDEXT | USBPCR_VBUSVLDEXTSEL | USBPCR_OTG_DISABLE); + reg |= USBPCR_USB_MODE; + writel(reg, priv->base + REG_USBPCR_OFFSET); + + break; + case PHY_MODE_USB_DEVICE: + if (priv->soc_info->version >= ID_X1000) { + reg = readl(priv->base + REG_USBPCR1_OFFSET); + reg |= USBPCR1_BVLD_REG; + writel(reg, priv->base + REG_USBPCR1_OFFSET); + } + + reg = readl(priv->base + REG_USBPCR_OFFSET); + reg &= ~USBPCR_USB_MODE; + reg |= USBPCR_VBUSVLDEXT | USBPCR_VBUSVLDEXTSEL | USBPCR_OTG_DISABLE; + writel(reg, priv->base + REG_USBPCR_OFFSET); + + break; + case PHY_MODE_USB_OTG: + reg = readl(priv->base + REG_USBPCR_OFFSET); + reg &= ~USBPCR_OTG_DISABLE; + reg |= USBPCR_VBUSVLDEXT | USBPCR_VBUSVLDEXTSEL | USBPCR_USB_MODE; + writel(reg, priv->base + REG_USBPCR_OFFSET); + + break; + default: + return -EINVAL; + } + + return 0; } -static void jz4770_usb_phy_init(struct usb_phy *phy) +static const struct phy_ops ingenic_usb_phy_ops = { + .init = ingenic_usb_phy_init, + .exit = ingenic_usb_phy_exit, + .power_on = ingenic_usb_phy_power_on, + .power_off = ingenic_usb_phy_power_off, + .set_mode = ingenic_usb_phy_set_mode, + .owner = THIS_MODULE, +}; + +static void jz4770_usb_phy_init(struct phy *phy) { - struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); u32 reg; reg = USBPCR_AVLD_REG | USBPCR_COMMONONN | USBPCR_IDPULLUP_ALWAYS | @@ -206,11 +219,16 @@ static void jz4770_usb_phy_init(struct usb_phy *phy) USBPCR_TXFSLSTUNE_DFT | USBPCR_TXRISETUNE_DFT | USBPCR_TXVREFTUNE_DFT | USBPCR_POR; writel(reg, priv->base + REG_USBPCR_OFFSET); + + /* Wait for PHY to reset */ + usleep_range(30, 300); + writel(reg & ~USBPCR_POR, priv->base + REG_USBPCR_OFFSET); + usleep_range(300, 1000); } -static void jz4780_usb_phy_init(struct usb_phy *phy) +static void jz4780_usb_phy_init(struct phy *phy) { - struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); u32 reg; reg = readl(priv->base + REG_USBPCR1_OFFSET) | USBPCR1_USB_SEL | @@ -219,11 +237,16 @@ static void jz4780_usb_phy_init(struct usb_phy *phy) reg = USBPCR_TXPREEMPHTUNE | USBPCR_COMMONONN | USBPCR_POR; writel(reg, priv->base + REG_USBPCR_OFFSET); + + /* Wait for PHY to reset */ + usleep_range(30, 300); + writel(reg & ~USBPCR_POR, priv->base + REG_USBPCR_OFFSET); + usleep_range(300, 1000); } -static void x1000_usb_phy_init(struct usb_phy *phy) +static void x1000_usb_phy_init(struct phy *phy) { - struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); u32 reg; reg = readl(priv->base + REG_USBPCR1_OFFSET) | USBPCR1_WORD_IF_16BIT; @@ -233,11 +256,16 @@ static void x1000_usb_phy_init(struct usb_phy *phy) USBPCR_TXHSXVTUNE_DCR_15MV | USBPCR_TXVREFTUNE_INC_25PPT | USBPCR_COMMONONN | USBPCR_POR; writel(reg, priv->base + REG_USBPCR_OFFSET); + + /* Wait for PHY to reset */ + usleep_range(30, 300); + writel(reg & ~USBPCR_POR, priv->base + REG_USBPCR_OFFSET); + usleep_range(300, 1000); } -static void x1830_usb_phy_init(struct usb_phy *phy) +static void x1830_usb_phy_init(struct phy *phy) { - struct jz4770_phy *priv = phy_to_jz4770_phy(phy); + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); u32 reg; /* rdt */ @@ -250,6 +278,11 @@ static void x1830_usb_phy_init(struct usb_phy *phy) reg = USBPCR_IDPULLUP_OTG | USBPCR_VBUSVLDEXT | USBPCR_TXPREEMPHTUNE | USBPCR_COMMONONN | USBPCR_POR; writel(reg, priv->base + REG_USBPCR_OFFSET); + + /* Wait for PHY to reset */ + usleep_range(30, 300); + writel(reg & ~USBPCR_POR, priv->base + REG_USBPCR_OFFSET); + usleep_range(300, 1000); } static const struct ingenic_soc_info jz4770_soc_info = { @@ -276,87 +309,96 @@ static const struct ingenic_soc_info x1830_soc_info = { .usb_phy_init = x1830_usb_phy_init, }; -static const struct of_device_id ingenic_usb_phy_of_matches[] = { - { .compatible = "ingenic,jz4770-phy", .data = &jz4770_soc_info }, - { .compatible = "ingenic,jz4780-phy", .data = &jz4780_soc_info }, - { .compatible = "ingenic,x1000-phy", .data = &x1000_soc_info }, - { .compatible = "ingenic,x1830-phy", .data = &x1830_soc_info }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, ingenic_usb_phy_of_matches); - -static int jz4770_phy_probe(struct platform_device *pdev) +static int ingenic_usb_phy_probe(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct jz4770_phy *priv; + struct ingenic_usb_phy *priv; + struct phy_provider *provider; int err; - priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; + priv->dev = &pdev->dev; + priv->soc_info = device_get_match_data(&pdev->dev); if (!priv->soc_info) { dev_err(&pdev->dev, "Error: No device match found\n"); return -ENODEV; } - platform_set_drvdata(pdev, priv); - priv->dev = dev; - priv->phy.dev = dev; - priv->phy.otg = &priv->otg; - priv->phy.label = "ingenic-usb-phy"; - priv->phy.init = ingenic_usb_phy_init; - priv->phy.shutdown = ingenic_usb_phy_shutdown; - - priv->otg.state = OTG_STATE_UNDEFINED; - priv->otg.usb_phy = &priv->phy; - priv->otg.set_host = ingenic_usb_phy_set_host; - priv->otg.set_peripheral = ingenic_usb_phy_set_peripheral; - priv->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(priv->base)) { - dev_err(dev, "Failed to map registers\n"); + dev_err(priv->dev, "Failed to map registers\n"); return PTR_ERR(priv->base); } - priv->clk = devm_clk_get(dev, NULL); + priv->clk = devm_clk_get(priv->dev, NULL); if (IS_ERR(priv->clk)) { err = PTR_ERR(priv->clk); if (err != -EPROBE_DEFER) - dev_err(dev, "Failed to get clock\n"); + dev_err(priv->dev, "Failed to get clock\n"); return err; } - priv->vcc_supply = devm_regulator_get(dev, "vcc"); + priv->vcc_supply = devm_regulator_get(priv->dev, "vcc"); if (IS_ERR(priv->vcc_supply)) { err = PTR_ERR(priv->vcc_supply); if (err != -EPROBE_DEFER) - dev_err(dev, "Failed to get regulator\n"); + dev_err(priv->dev, "Failed to get regulator\n"); return err; } - err = usb_add_phy(&priv->phy, USB_PHY_TYPE_USB2); - if (err) { - if (err != -EPROBE_DEFER) - dev_err(dev, "Unable to register PHY\n"); - return err; + priv->phy = devm_phy_create(priv->dev, NULL, &ingenic_usb_phy_ops); + if (IS_ERR(priv)) { + dev_err(priv->dev, "Failed to create PHY: %ld\n", PTR_ERR(priv)); + return PTR_ERR(priv); + } + + provider = devm_of_phy_provider_register(priv->dev, of_phy_simple_xlate); + if (IS_ERR(provider)) { + dev_err(priv->dev, "Failed to register PHY provider: %ld\n", PTR_ERR(provider)); + return PTR_ERR(provider); } - return devm_add_action_or_reset(dev, ingenic_usb_phy_remove, &priv->phy); + platform_set_drvdata(pdev, priv); + phy_set_drvdata(priv->phy, priv); + + return 0; +} + +static int ingenic_usb_phy_remove(struct platform_device *pdev) +{ + struct ingenic_usb_phy *priv = platform_get_drvdata(pdev); + + clk_disable_unprepare(priv->clk); + regulator_disable(priv->vcc_supply); + + return 0; } -static struct platform_driver ingenic_phy_driver = { - .probe = jz4770_phy_probe, +static const struct of_device_id ingenic_usb_phy_of_matches[] = { + { .compatible = "ingenic,jz4770-phy", .data = &jz4770_soc_info }, + { .compatible = "ingenic,jz4780-phy", .data = &jz4780_soc_info }, + { .compatible = "ingenic,x1000-phy", .data = &x1000_soc_info }, + { .compatible = "ingenic,x1830-phy", .data = &x1830_soc_info }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ingenic_usb_phy_of_matches); + +static struct platform_driver ingenic_usb_phy_driver = { + .probe = ingenic_usb_phy_probe, + .remove = ingenic_usb_phy_remove, .driver = { - .name = "jz4770-phy", - .of_match_table = of_match_ptr(ingenic_usb_phy_of_matches), + .name = "ingenic-usb-phy", + .of_match_table = ingenic_usb_phy_of_matches, }, }; -module_platform_driver(ingenic_phy_driver); +module_platform_driver(ingenic_usb_phy_driver); MODULE_AUTHOR("周琰杰 (Zhou Yanjie) "); MODULE_AUTHOR("漆鹏振 (Qi Pengzhen) "); MODULE_AUTHOR("Paul Cercueil "); MODULE_DESCRIPTION("Ingenic SoCs USB PHY driver"); +MODULE_ALIAS("jz4770_phy"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index ef4787cd3d37..ff24fca0a2d9 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -184,12 +184,4 @@ config USB_ULPI_VIEWPORT Provides read/write operations to the ULPI phy register set for controllers with a viewport register (e.g. Chipidea/ARC controllers). -config JZ4770_PHY - tristate "Ingenic SoCs Transceiver Driver" - depends on MIPS || COMPILE_TEST - select USB_PHY - help - This driver provides PHY support for the USB controller found - on the JZ-series and X-series SoCs from Ingenic. - endmenu diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index b352bdbe8712..df1d99010079 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -24,4 +24,3 @@ obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o obj-$(CONFIG_USB_ULPI) += phy-ulpi.o obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o obj-$(CONFIG_KEYSTONE_USB_PHY) += phy-keystone.o -obj-$(CONFIG_JZ4770_PHY) += phy-jz4770.o