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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 Wed, Aug 12, 2026, Marek Vasut wrote: > The ST STM32MP2 SoC contains one instance of DWC3 USB controller with > glue logic wrapper around it controlled by syscon. Extend the generic > DWC3 platform driver with ST STM32MP2 glue logic specifics. > > Signed-off-by: Marek Vasut > --- > Cc: Alexandre Torgue > Cc: Christian Bruel > Cc: Conor Dooley > Cc: Fabrice Gasnier > Cc: Greg Kroah-Hartman > Cc: Krzysztof Kozlowski > Cc: Maxime Coquelin > Cc: Neil Armstrong > Cc: Pankaj Dev > Cc: Rahul Kumar > Cc: Rob Herring > Cc: Rosen Penev > Cc: Thinh Nguyen > Cc: Vinod Koul > Cc: devicetree@vger.kernel.org > Cc: kernel@dh-electronics.com > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > Cc: linux-phy@lists.infradead.org > Cc: linux-stm32@st-md-mailman.stormreply.com > Cc: linux-usb@vger.kernel.org > --- > drivers/usb/dwc3/dwc3-generic-plat.c | 44 ++++++++++++++++++++++++++++ > 1 file changed, 44 insertions(+) > > diff --git a/drivers/usb/dwc3/dwc3-generic-plat.c b/drivers/usb/dwc3/dwc3-generic-plat.c > index ca69ac0eb07ce..0946ed61647b6 100644 > --- a/drivers/usb/dwc3/dwc3-generic-plat.c > +++ b/drivers/usb/dwc3/dwc3-generic-plat.c > @@ -22,6 +22,12 @@ > #define EIC7700_HSP_AXI_LP_XM_CSYSREQ BIT(0) > #define EIC7700_HSP_AXI_LP_XS_CSYSREQ BIT(16) > > +#define STM32MP2_USB3DRCR_HOST_PORT_POWER_CONTROL_PRESENT BIT(0) > +#define STM32MP2_USB3DRCR_OVRCUR_POLARITY BIT(1) > +#define STM32MP2_USB3DRCR_VBUSEN_POLARITY BIT(2) > +#define STM32MP2_USB3DRCR_USB2ONLYH BIT(3) > +#define STM32MP2_USB3DRCR_USB2ONLYD BIT(4) > + > struct dwc3_generic { > struct device *dev; > struct dwc3 dwc; > @@ -85,6 +91,38 @@ static int dwc3_spacemit_k1_init(struct dwc3_generic *dwc3g) > return 0; > } > > +static int dwc3_stm32mp25_init(struct dwc3_generic *dwc3g) > +{ > + struct device *dev = dwc3g->dev; > + bool ovrcur_polarity_low = device_property_read_bool(dev, "st,ovrcur-active-low"); > + bool prt_pwr_ctrl = device_property_read_bool(dev, "st,enable-port-power-control"); > + bool usb2only_conf = device_property_match_string(dev, "phy-names", "usb3-phy") < 0; > + bool vbusen_polarity_low = device_property_read_bool(dev, "st,vbusen-active-low"); > + struct regmap *regmap; > + u32 drcr; > + > + regmap = syscon_regmap_lookup_by_phandle_args(dev->of_node, "st,syscfg", 1, &drcr); > + if (IS_ERR(regmap)) > + return dev_err_probe(dev, PTR_ERR(regmap), "No st,syscfg phandle specified\n"); > + > + return regmap_update_bits(regmap, drcr, > + STM32MP2_USB3DRCR_HOST_PORT_POWER_CONTROL_PRESENT | > + STM32MP2_USB3DRCR_OVRCUR_POLARITY | > + STM32MP2_USB3DRCR_VBUSEN_POLARITY | > + STM32MP2_USB3DRCR_USB2ONLYD | > + STM32MP2_USB3DRCR_USB2ONLYH, > + FIELD_PREP(STM32MP2_USB3DRCR_HOST_PORT_POWER_CONTROL_PRESENT, > + prt_pwr_ctrl) | > + FIELD_PREP(STM32MP2_USB3DRCR_OVRCUR_POLARITY, > + ovrcur_polarity_low) | > + FIELD_PREP(STM32MP2_USB3DRCR_VBUSEN_POLARITY, > + vbusen_polarity_low) | > + FIELD_PREP(STM32MP2_USB3DRCR_USB2ONLYD, > + !!usb2only_conf) | > + FIELD_PREP(STM32MP2_USB3DRCR_USB2ONLYH, > + !!usb2only_conf)); > +} > + > static int dwc3_generic_probe(struct platform_device *pdev) > { > const struct dwc3_generic_config *plat_config; > @@ -231,12 +269,18 @@ static const struct dwc3_generic_config eic7700_dwc3 = { > .properties = DWC3_DEFAULT_PROPERTIES, > }; > > +static const struct dwc3_generic_config stm32mp25_dwc3 = { > + .init = dwc3_stm32mp25_init, > + .properties = DWC3_DEFAULT_PROPERTIES, > +}; > + > static const struct of_device_id dwc3_generic_of_match[] = { > { .compatible = "spacemit,k1-dwc3", &spacemit_k1_dwc3}, > { .compatible = "spacemit,k3-dwc3", }, > { .compatible = "fsl,ls1028a-dwc3", &fsl_ls1028_dwc3}, > { .compatible = "eswin,eic7700-dwc3", &eic7700_dwc3}, > { .compatible = "starfive,jhb100-dwc3", }, > + { .compatible = "st,stm32mp25-dwc3", &stm32mp25_dwc3 }, > { /* sentinel */ } > }; > MODULE_DEVICE_TABLE(of, dwc3_generic_of_match); > -- > 2.53.0 > Did you compile test each patch? This one fails to include bitfield.h for FIELD_PREP(). BR, Thinh -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy