On 07/08/2019 17:55, Jean-Jacques Hiblot wrote:

The mode selection for the DWC3 is kind of obsolete. The driver does not have to be host only or gadget only. This choice is confusing. All the remaining callers of dwc3_uboot_init() explicitly set dr_mode before calling the function, so none rely on a default behavior.

Remove the choice menu and keep only the USB_DWC3_GADGET option. Enable it by default if USB_GADGET and USB_DWC3 are enabled. It must be disabled for the evb-rk3328 and odroid-n2 as it uses DWC2 for the gadget and DWC3 for the host.

Signed-off-by: Jean-Jacques Hiblot jjhiblot@ti.com

---

This patch applies on top of git://git.denx.de/u-boot-usb.git master

This patch was a part of a larger series. The changes since are:

• Fix the test of the USB_DWC3_GADGET option. IS_ENABLED() requires the whole option name including the 'CONFIG_' prefix
• disable the CONFIG_USB_DWC3_GADGET option for the new odroid-n2 config

configs/evb-rk3328_defconfig | 1 + configs/odroid-n2_defconfig | 1 + drivers/usb/dwc3/Kconfig | 18 ++---------------- drivers/usb/dwc3/core.c | 4 ++-- 4 files changed, 6 insertions(+), 18 deletions(-)

diff --git a/configs/evb-rk3328_defconfig b/configs/evb-rk3328_defconfig index fcc04f27ec..373ddf2f7f 100644 --- a/configs/evb-rk3328_defconfig +++ b/configs/evb-rk3328_defconfig @@ -63,6 +63,7 @@ CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_GENERIC=y CONFIG_USB_DWC2=y CONFIG_USB_DWC3=y +# CONFIG_USB_DWC3_GADGET is not set CONFIG_USB_GADGET=y CONFIG_USB_GADGET_MANUFACTURER="Rockchip" CONFIG_USB_GADGET_VENDOR_NUM=0x2207 diff --git a/configs/odroid-n2_defconfig b/configs/odroid-n2_defconfig index 38d1549375..40b491e170 100644 --- a/configs/odroid-n2_defconfig +++ b/configs/odroid-n2_defconfig @@ -49,6 +49,7 @@ CONFIG_USB_GADGET_DWC2_OTG_PHY_BUS_WIDTH_8=y CONFIG_USB_XHCI_HCD=y CONFIG_USB_XHCI_DWC3=y CONFIG_USB_DWC3=y +# CONFIG_USB_DWC3_GADGET is not set CONFIG_USB_DWC3_MESON_G12A=y CONFIG_CMD_USB=y CONFIG_CMD_USB_MASS_STORAGE=y

For odroid-n2_defconfig :

Acked-by: Neil Armstrong narmstrong@baylibre.com

diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 25e1a38aee..c302486291 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -7,25 +7,11 @@ config USB_DWC3

if USB_DWC3

-choice

• bool "DWC3 Mode Selection"

-config USB_DWC3_HOST

• bool "Host only mode"
• depends on USB
• help

•  Select this when you want to use DWC3 in host mode only,
  

•  thereby the gadget feature will be regressed.
  

config USB_DWC3_GADGET

• bool "Gadget only mode"

• bool "USB Gadget support for DWC3"
• default y depends on USB_GADGET select USB_GADGET_DUALSPEED

• help

•  Select this when you want to use DWC3 in gadget mode only,
  

•  thereby the host feature will be regressed.
  

-endchoice

comment "Platform Glue Driver Support"

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 1baad39796..10b3f837f2 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -707,9 +707,9 @@ int dwc3_uboot_init(struct dwc3_device *dwc3_dev) return -ENOMEM; }

• if (IS_ENABLED(CONFIG_USB_DWC3_HOST))

• if (!IS_ENABLED(CONFIG_USB_DWC3_GADGET)) dwc->dr_mode = USB_DR_MODE_HOST;

• else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET))

• else if (!IS_ENABLED(CONFIG_USB_HOST)) dwc->dr_mode = USB_DR_MODE_PERIPHERAL;

  if (dwc->dr_mode == USB_DR_MODE_UNKNOWN)