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X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On Thu, Aug 13, 2026, Sebastian Reichel wrote: > Introduce Rockchip specific glue code for the Synopsys DWC3 USB driver. > For now this handles things identical to the default glue. > > Signed-off-by: Sebastian Reichel > --- > drivers/usb/dwc3/Kconfig | 11 ++++ > drivers/usb/dwc3/Makefile | 1 + > drivers/usb/dwc3/core.c | 15 +++++ > drivers/usb/dwc3/dwc3-rockchip.c | 115 +++++++++++++++++++++++++++++++++++++++ > 4 files changed, 142 insertions(+) > > diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig > index 18169727a413..3c120ea9746d 100644 > --- a/drivers/usb/dwc3/Kconfig > +++ b/drivers/usb/dwc3/Kconfig > @@ -190,6 +190,17 @@ config USB_DWC3_OCTEON > Only the host mode is currently supported. > Say 'Y' or 'M' here if you have one such device. > > +config USB_DWC3_ROCKCHIP > + tristate "Rockchip DWC3 Platform Driver" > + depends on ARCH_ROCKCHIP || COMPILE_TEST > + depends on OF > + default USB_DWC3 > + help > + Rockchip SoCs with DesignWare Core USB3 IP inside, > + and IP Core configured for USB 2.0 and USB 3.0 in host > + or dual-role mode. > + Say 'Y' or 'M' if you have such device. > + > config USB_DWC3_RTK > tristate "Realtek DWC3 Platform Driver" > depends on OF && ARCH_REALTEK > diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile > index f37971197203..444e7e7f34b2 100644 > --- a/drivers/usb/dwc3/Makefile > +++ b/drivers/usb/dwc3/Makefile > @@ -58,6 +58,7 @@ obj-$(CONFIG_USB_DWC3_IMX8MP) += dwc3-imx8mp.o > obj-$(CONFIG_USB_DWC3_IMX) += dwc3-imx.o > obj-$(CONFIG_USB_DWC3_XILINX) += dwc3-xilinx.o > obj-$(CONFIG_USB_DWC3_OCTEON) += dwc3-octeon.o > +obj-$(CONFIG_USB_DWC3_ROCKCHIP) += dwc3-rockchip.o > obj-$(CONFIG_USB_DWC3_RTK) += dwc3-rtk.o > obj-$(CONFIG_USB_DWC3_GENERIC_PLAT) += dwc3-generic-plat.o > obj-$(CONFIG_USB_DWC3_GOOGLE) += dwc3-google.o > diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c > index 517aa7f1486d..6e796489a04d 100644 > --- a/drivers/usb/dwc3/core.c > +++ b/drivers/usb/dwc3/core.c > @@ -2380,11 +2380,26 @@ int dwc3_core_probe(const struct dwc3_probe_data *data) > } > EXPORT_SYMBOL_GPL(dwc3_core_probe); > > +/* > + * List of compatibles, which have "synopsys,dwc3" as a fallback > + * compatible, but have a vendor specific glue driver that should > + * be used instead of this one. > + */ > +static const char *const dwc3_compatible_blocklist[] = { > + "rockchip,rk3588-dwc3", > + "rockchip,rk3576-dwc3", What if the rockchip glue is not built? Are we going to fallback to the core dwc3 driver? Or are you forcing to use rockchip glue always (ie no fallback). If it's the former, use IS_ENABLED guard. If it's the latter, update the kconfig. > +}; > + > static int dwc3_probe(struct platform_device *pdev) > { > struct dwc3_probe_data probe_data = {}; > struct resource *res; > struct dwc3 *dwc; > + int i; > + > + for (i = 0; i < ARRAY_SIZE(dwc3_compatible_blocklist); i++) > + if (device_is_compatible(&pdev->dev, dwc3_compatible_blocklist[i])) > + return -ENODEV; > > res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > if (!res) { > diff --git a/drivers/usb/dwc3/dwc3-rockchip.c b/drivers/usb/dwc3/dwc3-rockchip.c > new file mode 100644 > index 000000000000..1df33625b69f > --- /dev/null > +++ b/drivers/usb/dwc3/dwc3-rockchip.c > @@ -0,0 +1,115 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* Copyright (c) 2026, Collabora Ltd. */ > +#include > +#include > +#include > +#include "glue.h" > + > +struct dwc3_rockchip { > + struct dwc3 dwc; > +}; > + > +static int dwc3_rockchip_probe(struct platform_device *pdev) > +{ > + struct dwc3_probe_data probe_data = {}; > + struct resource *res; > + struct dwc3_rockchip *dwc_rk; > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + if (!res) { > + dev_err(&pdev->dev, "missing memory resource\n"); > + return -ENODEV; > + } > + > + dwc_rk = devm_kzalloc(&pdev->dev, sizeof(*dwc_rk), GFP_KERNEL); > + if (!dwc_rk) > + return -ENOMEM; > + > + dwc_rk->dwc.dev = &pdev->dev; > + dwc_rk->dwc.glue_ops = NULL; > + > + probe_data.dwc = &dwc_rk->dwc; > + probe_data.res = res; > + probe_data.properties = DWC3_DEFAULT_PROPERTIES; > + > + return dwc3_core_probe(&probe_data); > +} > + > +static void dwc3_rockchip_remove(struct platform_device *pdev) > +{ > + dwc3_core_remove(platform_get_drvdata(pdev)); > +} > + > +#ifdef CONFIG_PM > +static int dwc3_rockchip_runtime_suspend(struct device *dev) > +{ > + return dwc3_runtime_suspend(dev_get_drvdata(dev)); > +} > + > +static int dwc3_rockchip_runtime_resume(struct device *dev) > +{ > + return dwc3_runtime_resume(dev_get_drvdata(dev)); > +} > + > +static int dwc3_rockchip_runtime_idle(struct device *dev) > +{ > + return dwc3_runtime_idle(dev_get_drvdata(dev)); > +} > +#endif > + > +#ifdef CONFIG_PM_SLEEP Use the new PM macros and remove these guards. > +static int dwc3_rockchip_suspend(struct device *dev) > +{ > + return dwc3_pm_suspend(dev_get_drvdata(dev)); > +} > + > +static int dwc3_rockchip_resume(struct device *dev) > +{ > + return dwc3_pm_resume(dev_get_drvdata(dev)); > +} > + > +static void dwc3_rockchip_complete(struct device *dev) > +{ > + dwc3_pm_complete(dev_get_drvdata(dev)); > +} > + > +static int dwc3_rockchip_prepare(struct device *dev) > +{ > + return dwc3_pm_prepare(dev_get_drvdata(dev)); > +} > +#endif > + > +static const struct dev_pm_ops dwc3_rockchip_dev_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(dwc3_rockchip_suspend, dwc3_rockchip_resume) > + .complete = dwc3_rockchip_complete, > + .prepare = dwc3_rockchip_prepare, > + /* > + * Runtime suspend halts the controller on disconnection. It relies on > + * platforms with custom connection notification to start the controller > + * again. > + */ > + SET_RUNTIME_PM_OPS(dwc3_rockchip_runtime_suspend, dwc3_rockchip_runtime_resume, > + dwc3_rockchip_runtime_idle) > +}; > + > +static const struct of_device_id dwc3_rockchip_of_match[] = { > + { .compatible = "rockchip,rk3588-dwc3" }, > + { .compatible = "rockchip,rk3576-dwc3" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, dwc3_rockchip_of_match); > + > +static struct platform_driver dwc3_rockchip_driver = { > + .probe = dwc3_rockchip_probe, > + .remove = dwc3_rockchip_remove, > + .driver = { > + .name = "dwc3-rockchip", > + .pm = pm_ptr(&dwc3_rockchip_dev_pm_ops), > + .of_match_table = dwc3_rockchip_of_match, > + }, > +}; > + > +module_platform_driver(dwc3_rockchip_driver); > + > +MODULE_LICENSE("GPL"); > +MODULE_DESCRIPTION("DesignWare DWC3 Rockchip Glue Driver"); > > -- > 2.53.0 > BR, Thinh -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 79CB2C61DCB for ; 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X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org On Thu, Aug 13, 2026, Sebastian Reichel wrote: > Introduce Rockchip specific glue code for the Synopsys DWC3 USB driver. > For now this handles things identical to the default glue. > > Signed-off-by: Sebastian Reichel > --- > drivers/usb/dwc3/Kconfig | 11 ++++ > drivers/usb/dwc3/Makefile | 1 + > drivers/usb/dwc3/core.c | 15 +++++ > drivers/usb/dwc3/dwc3-rockchip.c | 115 +++++++++++++++++++++++++++++++++++++++ > 4 files changed, 142 insertions(+) > > diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig > index 18169727a413..3c120ea9746d 100644 > --- a/drivers/usb/dwc3/Kconfig > +++ b/drivers/usb/dwc3/Kconfig > @@ -190,6 +190,17 @@ config USB_DWC3_OCTEON > Only the host mode is currently supported. > Say 'Y' or 'M' here if you have one such device. > > +config USB_DWC3_ROCKCHIP > + tristate "Rockchip DWC3 Platform Driver" > + depends on ARCH_ROCKCHIP || COMPILE_TEST > + depends on OF > + default USB_DWC3 > + help > + Rockchip SoCs with DesignWare Core USB3 IP inside, > + and IP Core configured for USB 2.0 and USB 3.0 in host > + or dual-role mode. > + Say 'Y' or 'M' if you have such device. > + > config USB_DWC3_RTK > tristate "Realtek DWC3 Platform Driver" > depends on OF && ARCH_REALTEK > diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile > index f37971197203..444e7e7f34b2 100644 > --- a/drivers/usb/dwc3/Makefile > +++ b/drivers/usb/dwc3/Makefile > @@ -58,6 +58,7 @@ obj-$(CONFIG_USB_DWC3_IMX8MP) += dwc3-imx8mp.o > obj-$(CONFIG_USB_DWC3_IMX) += dwc3-imx.o > obj-$(CONFIG_USB_DWC3_XILINX) += dwc3-xilinx.o > obj-$(CONFIG_USB_DWC3_OCTEON) += dwc3-octeon.o > +obj-$(CONFIG_USB_DWC3_ROCKCHIP) += dwc3-rockchip.o > obj-$(CONFIG_USB_DWC3_RTK) += dwc3-rtk.o > obj-$(CONFIG_USB_DWC3_GENERIC_PLAT) += dwc3-generic-plat.o > obj-$(CONFIG_USB_DWC3_GOOGLE) += dwc3-google.o > diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c > index 517aa7f1486d..6e796489a04d 100644 > --- a/drivers/usb/dwc3/core.c > +++ b/drivers/usb/dwc3/core.c > @@ -2380,11 +2380,26 @@ int dwc3_core_probe(const struct dwc3_probe_data *data) > } > EXPORT_SYMBOL_GPL(dwc3_core_probe); > > +/* > + * List of compatibles, which have "synopsys,dwc3" as a fallback > + * compatible, but have a vendor specific glue driver that should > + * be used instead of this one. > + */ > +static const char *const dwc3_compatible_blocklist[] = { > + "rockchip,rk3588-dwc3", > + "rockchip,rk3576-dwc3", What if the rockchip glue is not built? Are we going to fallback to the core dwc3 driver? Or are you forcing to use rockchip glue always (ie no fallback). If it's the former, use IS_ENABLED guard. If it's the latter, update the kconfig. > +}; > + > static int dwc3_probe(struct platform_device *pdev) > { > struct dwc3_probe_data probe_data = {}; > struct resource *res; > struct dwc3 *dwc; > + int i; > + > + for (i = 0; i < ARRAY_SIZE(dwc3_compatible_blocklist); i++) > + if (device_is_compatible(&pdev->dev, dwc3_compatible_blocklist[i])) > + return -ENODEV; > > res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > if (!res) { > diff --git a/drivers/usb/dwc3/dwc3-rockchip.c b/drivers/usb/dwc3/dwc3-rockchip.c > new file mode 100644 > index 000000000000..1df33625b69f > --- /dev/null > +++ b/drivers/usb/dwc3/dwc3-rockchip.c > @@ -0,0 +1,115 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* Copyright (c) 2026, Collabora Ltd. */ > +#include > +#include > +#include > +#include "glue.h" > + > +struct dwc3_rockchip { > + struct dwc3 dwc; > +}; > + > +static int dwc3_rockchip_probe(struct platform_device *pdev) > +{ > + struct dwc3_probe_data probe_data = {}; > + struct resource *res; > + struct dwc3_rockchip *dwc_rk; > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + if (!res) { > + dev_err(&pdev->dev, "missing memory resource\n"); > + return -ENODEV; > + } > + > + dwc_rk = devm_kzalloc(&pdev->dev, sizeof(*dwc_rk), GFP_KERNEL); > + if (!dwc_rk) > + return -ENOMEM; > + > + dwc_rk->dwc.dev = &pdev->dev; > + dwc_rk->dwc.glue_ops = NULL; > + > + probe_data.dwc = &dwc_rk->dwc; > + probe_data.res = res; > + probe_data.properties = DWC3_DEFAULT_PROPERTIES; > + > + return dwc3_core_probe(&probe_data); > +} > + > +static void dwc3_rockchip_remove(struct platform_device *pdev) > +{ > + dwc3_core_remove(platform_get_drvdata(pdev)); > +} > + > +#ifdef CONFIG_PM > +static int dwc3_rockchip_runtime_suspend(struct device *dev) > +{ > + return dwc3_runtime_suspend(dev_get_drvdata(dev)); > +} > + > +static int dwc3_rockchip_runtime_resume(struct device *dev) > +{ > + return dwc3_runtime_resume(dev_get_drvdata(dev)); > +} > + > +static int dwc3_rockchip_runtime_idle(struct device *dev) > +{ > + return dwc3_runtime_idle(dev_get_drvdata(dev)); > +} > +#endif > + > +#ifdef CONFIG_PM_SLEEP Use the new PM macros and remove these guards. > +static int dwc3_rockchip_suspend(struct device *dev) > +{ > + return dwc3_pm_suspend(dev_get_drvdata(dev)); > +} > + > +static int dwc3_rockchip_resume(struct device *dev) > +{ > + return dwc3_pm_resume(dev_get_drvdata(dev)); > +} > + > +static void dwc3_rockchip_complete(struct device *dev) > +{ > + dwc3_pm_complete(dev_get_drvdata(dev)); > +} > + > +static int dwc3_rockchip_prepare(struct device *dev) > +{ > + return dwc3_pm_prepare(dev_get_drvdata(dev)); > +} > +#endif > + > +static const struct dev_pm_ops dwc3_rockchip_dev_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(dwc3_rockchip_suspend, dwc3_rockchip_resume) > + .complete = dwc3_rockchip_complete, > + .prepare = dwc3_rockchip_prepare, > + /* > + * Runtime suspend halts the controller on disconnection. It relies on > + * platforms with custom connection notification to start the controller > + * again. > + */ > + SET_RUNTIME_PM_OPS(dwc3_rockchip_runtime_suspend, dwc3_rockchip_runtime_resume, > + dwc3_rockchip_runtime_idle) > +}; > + > +static const struct of_device_id dwc3_rockchip_of_match[] = { > + { .compatible = "rockchip,rk3588-dwc3" }, > + { .compatible = "rockchip,rk3576-dwc3" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, dwc3_rockchip_of_match); > + > +static struct platform_driver dwc3_rockchip_driver = { > + .probe = dwc3_rockchip_probe, > + .remove = dwc3_rockchip_remove, > + .driver = { > + .name = "dwc3-rockchip", > + .pm = pm_ptr(&dwc3_rockchip_dev_pm_ops), > + .of_match_table = dwc3_rockchip_of_match, > + }, > +}; > + > +module_platform_driver(dwc3_rockchip_driver); > + > +MODULE_LICENSE("GPL"); > +MODULE_DESCRIPTION("DesignWare DWC3 Rockchip Glue Driver"); > > -- > 2.53.0 > BR, Thinh _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip