| Message ID | 20200913063430.9622-3-zhouyanjie@wanyeetech.com |
|---|---|
| State | New |
| Headers | show |
| Series | Use the generic PHY framework for Ingenic USB PHY. | expand |
Hi Zhou, Le dim. 13 sept. 2020 à 14:34, 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> a écrit : > Used the generic PHY framework API to create the PHY, > and move the driver to driver/phy/ingenic. And adjust > the position of some codes to make it consistent with > the style of other USB PHY drivers. > > Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com> > Co-developed-by: 漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com> > Signed-off-by: 漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com> > Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> > --- > > 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". > > v2->v3: > 1.Change "depends on (MACH_INGENIC && MIPS) || COMPILE_TEST" to > "depends on MIPS || COMPILE_TEST". > 2.Keep the adjustments of "ingenic_usb_phy_init()" and > "ingenic_usb_phu_exit()" > positions in v2 to make them consistent with the order in > "ingenic_usb_phy_ops", > keep the adjustments to the positions of > "ingenic_usb_phy_of_matches[]" in v2 > to keep them consistent with the styles of other USB PHY > drivers. And remove > some unnecessary changes to reduce the diff size, from the > original 256 lines > change to the current 209 lines. > > 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} | 209 > +++++++++++---------- > drivers/usb/phy/Kconfig | 8 - > drivers/usb/phy/Makefile | 1 - > 7 files changed, 128 insertions(+), 106 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} (71%) > > 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..912b14e512cb > --- /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 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 71% > rename from drivers/usb/phy/phy-jz4770.c > rename to drivers/phy/ingenic/phy-ingenic-usb.c > index 4025da20b3fd..1f2e811c9125 100644 > --- a/drivers/usb/phy/phy-jz4770.c > +++ b/drivers/phy/ingenic/phy-ingenic-usb.c > @@ -7,12 +7,12 @@ > */ > > #include <linux/clk.h> > +#include <linux/delay.h> > #include <linux/io.h> > #include <linux/module.h> > #include <linux/platform_device.h> > #include <linux/regulator/consumer.h> > -#include <linux/usb/otg.h> > -#include <linux/usb/phy.h> > +#include <linux/phy/phy.h> > > /* OTGPHY register offsets */ > #define REG_USBPCR_OFFSET 0x00 > @@ -97,68 +97,56 @@ 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); > + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); > + int err; > u32 reg; > > - 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; > } > > + priv->soc_info->usb_phy_init(phy); > + > + /* Wait for PHY to reset */ > + usleep_range(30, 300); > 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); > + writel(reg & ~USBPCR_POR, priv->base + REG_USBPCR_OFFSET); > + usleep_range(300, 1000); > > 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; > } That part is still messy. You remove ingenic_usb_phy_set_peripheral() and ingenic_usb_phy_set_host(), then add ingenic_usb_phy_init() and ingenic_usb_phy_exit(). Why were the two first functions removed? Just keep these around, and call them from ingenic_usb_phy_set_mode(). That will automatically make the diff much smaller. And by making the diff smaller, we can spot the actual differences. Like how support for PHY_MODE_USB_OTG was added, without any notice. > > -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 +154,71 @@ 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 | > @@ -208,9 +228,9 @@ static void jz4770_usb_phy_init(struct usb_phy > *phy) > writel(reg, priv->base + REG_USBPCR_OFFSET); > } > > -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 | > @@ -221,9 +241,9 @@ static void jz4780_usb_phy_init(struct usb_phy > *phy) > writel(reg, priv->base + REG_USBPCR_OFFSET); > } > > -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; > @@ -235,9 +255,9 @@ static void x1000_usb_phy_init(struct usb_phy > *phy) > writel(reg, priv->base + REG_USBPCR_OFFSET); > } > > -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 */ > @@ -276,43 +296,25 @@ 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); Why move that array? > - > -static int jz4770_phy_probe(struct platform_device *pdev) > +static int ingenic_usb_phy_probe(struct platform_device *pdev) > { > + struct ingenic_usb_phy *priv; > + struct phy_provider *provider; > struct device *dev = &pdev->dev; > - struct jz4770_phy *priv; > int err; > > priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); > if (!priv) > return -ENOMEM; > > - priv->soc_info = device_get_match_data(&pdev->dev); > + priv->soc_info = device_get_match_data(dev); > if (!priv->soc_info) { > - dev_err(&pdev->dev, "Error: No device match found\n"); > + dev_err(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)) { > @@ -336,27 +338,40 @@ static int jz4770_phy_probe(struct > platform_device *pdev) > 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); You can use 'dev' directly. > + if (IS_ERR(priv)) > + return PTR_ERR(priv); > + > + phy_set_drvdata(priv->phy, priv); > > - return devm_add_action_or_reset(dev, ingenic_usb_phy_remove, > &priv->phy); > + provider = devm_of_phy_provider_register(priv->dev, > of_phy_simple_xlate); > + if (IS_ERR(provider)) > + return PTR_ERR(provider); > + > + return 0; return demv_of_phy_provider_register(dev, ...) > } > > -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, > .driver = { > - .name = "jz4770-phy", > + .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) <zhouyanjie@wanyeetech.com>"); > MODULE_AUTHOR("漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com>"); > MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); > MODULE_DESCRIPTION("Ingenic SoCs USB PHY driver"); > +MODULE_ALIAS("jz4770-phy"); So I first thought this generic PHY driver would be a drop-in replacement for the old jz4770-phy driver, that's why I suggested to add the jz4770-phy alias. But it turns out that it's a completely different framework, so we can drop the alias. That also means that this patch, without any change to the JZ4740 MUSB driver, breaks USB on all Ingenic SoCs I can test with. So unless you have a patch to the jz4740-musb driver in this series, you can't remove the old jz4770-phy driver yet. Just modify this patch so that the new generic-PHY driver is added, without removing the old one. It will be much easier to review (one new driver vs lots of +/- lines) and you can move the code around if you want to. Then when the jz4740-musb driver is modified to use the generic PHY framework, the old jz4770-phy driver can be "retired". Cheers, -Paul > 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 > -- > 2.11.0 >
Hi Paul, 在 2020/9/16 上午6:47, Paul Cercueil 写道: > Hi Zhou, > > Le dim. 13 sept. 2020 à 14:34, 周琰杰 (Zhou Yanjie) > <zhouyanjie@wanyeetech.com> a écrit : >> Used the generic PHY framework API to create the PHY, >> and move the driver to driver/phy/ingenic. And adjust >> the position of some codes to make it consistent with >> the style of other USB PHY drivers. >> >> Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com> >> Co-developed-by: 漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com> >> Signed-off-by: 漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com> >> Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> >> --- >> >> 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". >> >> v2->v3: >> 1.Change "depends on (MACH_INGENIC && MIPS) || COMPILE_TEST" to >> "depends on MIPS || COMPILE_TEST". >> 2.Keep the adjustments of "ingenic_usb_phy_init()" and >> "ingenic_usb_phu_exit()" >> positions in v2 to make them consistent with the order in >> "ingenic_usb_phy_ops", >> keep the adjustments to the positions of >> "ingenic_usb_phy_of_matches[]" in v2 >> to keep them consistent with the styles of other USB PHY >> drivers. And remove >> some unnecessary changes to reduce the diff size, from the >> original 256 lines >> change to the current 209 lines. >> >> 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} | 209 >> +++++++++++---------- >> drivers/usb/phy/Kconfig | 8 - >> drivers/usb/phy/Makefile | 1 - >> 7 files changed, 128 insertions(+), 106 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} (71%) >> >> 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..912b14e512cb >> --- /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 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 71% >> rename from drivers/usb/phy/phy-jz4770.c >> rename to drivers/phy/ingenic/phy-ingenic-usb.c >> index 4025da20b3fd..1f2e811c9125 100644 >> --- a/drivers/usb/phy/phy-jz4770.c >> +++ b/drivers/phy/ingenic/phy-ingenic-usb.c >> @@ -7,12 +7,12 @@ >> */ >> >> #include <linux/clk.h> >> +#include <linux/delay.h> >> #include <linux/io.h> >> #include <linux/module.h> >> #include <linux/platform_device.h> >> #include <linux/regulator/consumer.h> >> -#include <linux/usb/otg.h> >> -#include <linux/usb/phy.h> >> +#include <linux/phy/phy.h> >> >> /* OTGPHY register offsets */ >> #define REG_USBPCR_OFFSET 0x00 >> @@ -97,68 +97,56 @@ 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); >> + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); >> + int err; >> u32 reg; >> >> - 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; >> } >> >> + priv->soc_info->usb_phy_init(phy); >> + >> + /* Wait for PHY to reset */ >> + usleep_range(30, 300); >> 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); >> + writel(reg & ~USBPCR_POR, priv->base + REG_USBPCR_OFFSET); >> + usleep_range(300, 1000); >> >> 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; >> } > > That part is still messy. You remove ingenic_usb_phy_set_peripheral() > and ingenic_usb_phy_set_host(), then add ingenic_usb_phy_init() and > ingenic_usb_phy_exit(). Why were the two first functions removed? Just > keep these around, and call them from ingenic_usb_phy_set_mode(). That > will automatically make the diff much smaller. > > And by making the diff smaller, we can spot the actual differences. > Like how support for PHY_MODE_USB_OTG was added, without any notice. > Indeed, after following your suggestion, the diff can be reduced a lot. I was too entangled in trying to be consistent with the order and style in orther phy drivers. :( >> >> -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 +154,71 @@ 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 | >> @@ -208,9 +228,9 @@ static void jz4770_usb_phy_init(struct usb_phy *phy) >> writel(reg, priv->base + REG_USBPCR_OFFSET); >> } >> >> -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 | >> @@ -221,9 +241,9 @@ static void jz4780_usb_phy_init(struct usb_phy *phy) >> writel(reg, priv->base + REG_USBPCR_OFFSET); >> } >> >> -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; >> @@ -235,9 +255,9 @@ static void x1000_usb_phy_init(struct usb_phy *phy) >> writel(reg, priv->base + REG_USBPCR_OFFSET); >> } >> >> -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 */ >> @@ -276,43 +296,25 @@ 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); > > Why move that array? > This is the same as before, too entangled in keeping consistent with the order in other phy drivers :( >> - >> -static int jz4770_phy_probe(struct platform_device *pdev) >> +static int ingenic_usb_phy_probe(struct platform_device *pdev) >> { >> + struct ingenic_usb_phy *priv; >> + struct phy_provider *provider; >> struct device *dev = &pdev->dev; >> - struct jz4770_phy *priv; >> int err; >> >> priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); >> if (!priv) >> return -ENOMEM; >> >> - priv->soc_info = device_get_match_data(&pdev->dev); >> + priv->soc_info = device_get_match_data(dev); >> if (!priv->soc_info) { >> - dev_err(&pdev->dev, "Error: No device match found\n"); >> + dev_err(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)) { >> @@ -336,27 +338,40 @@ static int jz4770_phy_probe(struct >> platform_device *pdev) >> 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); > > You can use 'dev' directly. > Sure. >> + if (IS_ERR(priv)) >> + return PTR_ERR(priv); >> + >> + phy_set_drvdata(priv->phy, priv); >> >> - return devm_add_action_or_reset(dev, ingenic_usb_phy_remove, >> &priv->phy); >> + provider = devm_of_phy_provider_register(priv->dev, >> of_phy_simple_xlate); >> + if (IS_ERR(provider)) >> + return PTR_ERR(provider); >> + >> + return 0; > > return demv_of_phy_provider_register(dev, ...) > Sure. >> } >> >> -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, >> .driver = { >> - .name = "jz4770-phy", >> + .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) <zhouyanjie@wanyeetech.com>"); >> MODULE_AUTHOR("漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com>"); >> MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); >> MODULE_DESCRIPTION("Ingenic SoCs USB PHY driver"); >> +MODULE_ALIAS("jz4770-phy"); > > So I first thought this generic PHY driver would be a drop-in > replacement for the old jz4770-phy driver, that's why I suggested to > add the jz4770-phy alias. But it turns out that it's a completely > different framework, so we can drop the alias. > > That also means that this patch, without any change to the JZ4740 MUSB > driver, breaks USB on all Ingenic SoCs I can test with. > > So unless you have a patch to the jz4740-musb driver in this series, > you can't remove the old jz4770-phy driver yet. Just modify this patch > so that the new generic-PHY driver is added, without removing the old > one. It will be much easier to review (one new driver vs lots of +/- > lines) and you can move the code around if you want to. Then when the > jz4740-musb driver is modified to use the generic PHY framework, the > old jz4770-phy driver can be "retired". > Sure, this also just solves the problem of order and style that I entangled before. Thanks and best regards! > Cheers, > -Paul > >> 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 >> -- >> 2.11.0 >> >
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..912b14e512cb --- /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 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 71% rename from drivers/usb/phy/phy-jz4770.c rename to drivers/phy/ingenic/phy-ingenic-usb.c index 4025da20b3fd..1f2e811c9125 100644 --- a/drivers/usb/phy/phy-jz4770.c +++ b/drivers/phy/ingenic/phy-ingenic-usb.c @@ -7,12 +7,12 @@ */ #include <linux/clk.h> +#include <linux/delay.h> #include <linux/io.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/regulator/consumer.h> -#include <linux/usb/otg.h> -#include <linux/usb/phy.h> +#include <linux/phy/phy.h> /* OTGPHY register offsets */ #define REG_USBPCR_OFFSET 0x00 @@ -97,68 +97,56 @@ 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); + struct ingenic_usb_phy *priv = phy_get_drvdata(phy); + int err; u32 reg; - 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; } + priv->soc_info->usb_phy_init(phy); + + /* Wait for PHY to reset */ + usleep_range(30, 300); 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); + writel(reg & ~USBPCR_POR, priv->base + REG_USBPCR_OFFSET); + usleep_range(300, 1000); 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 +154,71 @@ 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 | @@ -208,9 +228,9 @@ static void jz4770_usb_phy_init(struct usb_phy *phy) writel(reg, priv->base + REG_USBPCR_OFFSET); } -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 | @@ -221,9 +241,9 @@ static void jz4780_usb_phy_init(struct usb_phy *phy) writel(reg, priv->base + REG_USBPCR_OFFSET); } -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; @@ -235,9 +255,9 @@ static void x1000_usb_phy_init(struct usb_phy *phy) writel(reg, priv->base + REG_USBPCR_OFFSET); } -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 */ @@ -276,43 +296,25 @@ 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 ingenic_usb_phy *priv; + struct phy_provider *provider; struct device *dev = &pdev->dev; - struct jz4770_phy *priv; int err; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; - priv->soc_info = device_get_match_data(&pdev->dev); + priv->soc_info = device_get_match_data(dev); if (!priv->soc_info) { - dev_err(&pdev->dev, "Error: No device match found\n"); + dev_err(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)) { @@ -336,27 +338,40 @@ static int jz4770_phy_probe(struct platform_device *pdev) 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)) + return PTR_ERR(priv); + + phy_set_drvdata(priv->phy, priv); - return devm_add_action_or_reset(dev, ingenic_usb_phy_remove, &priv->phy); + provider = devm_of_phy_provider_register(priv->dev, of_phy_simple_xlate); + if (IS_ERR(provider)) + return PTR_ERR(provider); + + 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, .driver = { - .name = "jz4770-phy", + .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) <zhouyanjie@wanyeetech.com>"); MODULE_AUTHOR("漆鹏振 (Qi Pengzhen) <aric.pzqi@ingenic.com>"); MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); 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