[U-Boot] [PATCH v2 2/7] usb: introduce a separate config option for DM USB device

[Jean-Jacques Hiblot]

Using CONFIG_DM_USB for this purpose prevents using DM_USB for host and not
for device.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot at ti.com>

---

Changes in v2:
- select DM_USB_DEV by default for zynqmp platforms

 arch/arm/Kconfig                | 2 ++
 drivers/usb/Kconfig             | 6 ++++++
 drivers/usb/dwc3/core.c         | 2 +-
 drivers/usb/dwc3/dwc3-generic.c | 4 +++-
 4 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0d1802b..caf7053 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -841,6 +841,7 @@ config ARCH_ZYNQMP_R5
 	select DM
 	select DM_SERIAL
 	select CLK
+	imply DM_USB_DEV
 
 config ARCH_ZYNQMP
 	bool "Xilinx ZynqMP based platform"
@@ -855,6 +856,7 @@ config ARCH_ZYNQMP
 	select SPL_CLK if SPL
 	select DM_USB if USB
 	imply FAT_WRITE
+	imply DM_USB_DEV
 
 config TEGRA
 	bool "NVIDIA Tegra"
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 4fbe172..3587ba4 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -47,6 +47,12 @@ config DM_USB
 	  declared with the U_BOOT_USB_DEVICE() macro and will be
 	  automatically probed when found on the bus.
 
+config DM_USB_DEV
+	bool "Enable driver model for USB (Peripheral mode)"
+	depends on DM_USB
+	help
+	  Enable driver model for USB (Peripheral mode).
+
 source "drivers/usb/host/Kconfig"
 
 source "drivers/usb/dwc3/Kconfig"
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 1ab5cee..d5ee6d9 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -789,7 +789,7 @@ MODULE_AUTHOR("Felipe Balbi <balbi at ti.com>");
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver");
 
-#ifdef CONFIG_DM_USB
+#ifdef CONFIG_DM_USB_DEV
 
 int dwc3_init(struct dwc3 *dwc)
 {
diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
index ca63eac..2c1e696 100644
--- a/drivers/usb/dwc3/dwc3-generic.c
+++ b/drivers/usb/dwc3/dwc3-generic.c
@@ -21,7 +21,7 @@
 #include "gadget.h"
 #include "linux-compat.h"
 
-DECLARE_GLOBAL_DATA_PTR;
+#ifdef CONFIG_DM_USB_DEV
 
 int usb_gadget_handle_interrupts(int index)
 {
@@ -98,6 +98,8 @@ U_BOOT_DRIVER(dwc3_generic_peripheral) = {
 	.flags	= DM_FLAG_ALLOC_PRIV_DMA,
 };
 
+#endif
+
 static int dwc3_generic_bind(struct udevice *parent)
 {
 	const void *fdt = gd->fdt_blob;
-- 
2.7.4