usb: chipidea: Always build ULPI code

Commit 03e6275ae381 ("usb: chipidea: Fix ULPI on imx51") causes a kernel
hang on imx51 systems that use the ULPI interface and do not select the
CONFIG_USB_CHIPIDEA_ULPI option.

In order to avoid such potential misuse, let's always build the
chipidea ULPI code into the final ci_hdrc object.

Tested on a imx51-babbage board.

Fixes: 03e6275ae381 ("usb: chipidea: Fix ULPI on imx51")
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>

diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index 785f0ed..ee34e90 100644 (file)
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -3,6 +3,7 @@ config USB_CHIPIDEA
        depends on ((USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET)) && HAS_DMA
        select EXTCON
        select RESET_CONTROLLER
+       select USB_ULPI_BUS
        help
          Say Y here if your system has a dual role high speed USB
          controller based on ChipIdea silicon IP. It supports:
@@ -38,12 +39,4 @@ config USB_CHIPIDEA_HOST
        help
          Say Y here to enable host controller functionality of the
          ChipIdea driver.
-
-config USB_CHIPIDEA_ULPI
-       bool "ChipIdea ULPI PHY support"
-       depends on USB_ULPI_BUS=y || USB_ULPI_BUS=USB_CHIPIDEA
-       help
-         Say Y here if you have a ULPI PHY attached to your ChipIdea
-         controller.
-
 endif

diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
index e3d5e72..12df94f 100644 (file)
--- a/drivers/usb/chipidea/Makefile
+++ b/drivers/usb/chipidea/Makefile
@@ -1,11 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_USB_CHIPIDEA)             += ci_hdrc.o
 
-ci_hdrc-y                              := core.o otg.o debug.o
+ci_hdrc-y                              := core.o otg.o debug.o ulpi.o
 ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC)     += udc.o
 ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST)    += host.o
 ci_hdrc-$(CONFIG_USB_OTG_FSM)          += otg_fsm.o
-ci_hdrc-$(CONFIG_USB_CHIPIDEA_ULPI)    += ulpi.o
 
 # Glue/Bridge layers go here
 

diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 0bf244d..6a2cc5c 100644 (file)
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -240,10 +240,8 @@ struct ci_hdrc {
 
        struct ci_hdrc_platform_data    *platdata;
        int                             vbus_active;
-#ifdef CONFIG_USB_CHIPIDEA_ULPI
        struct ulpi                     *ulpi;
        struct ulpi_ops                 ulpi_ops;
-#endif
        struct phy                      *phy;
        /* old usb_phy interface */
        struct usb_phy                  *usb_phy;
@@ -426,15 +424,9 @@ static inline bool ci_otg_is_fsm_mode(struct ci_hdrc *ci)
 #endif
 }
 
-#if IS_ENABLED(CONFIG_USB_CHIPIDEA_ULPI)
 int ci_ulpi_init(struct ci_hdrc *ci);
 void ci_ulpi_exit(struct ci_hdrc *ci);
 int ci_ulpi_resume(struct ci_hdrc *ci);
-#else
-static inline int ci_ulpi_init(struct ci_hdrc *ci) { return 0; }
-static inline void ci_ulpi_exit(struct ci_hdrc *ci) { }
-static inline int ci_ulpi_resume(struct ci_hdrc *ci) { return 0; }
-#endif
 
 u32 hw_read_intr_enable(struct ci_hdrc *ci);
 

diff --git a/drivers/usb/chipidea/ulpi.c b/drivers/usb/chipidea/ulpi.c
index 6da42dc..dfec07e 100644 (file)
--- a/drivers/usb/chipidea/ulpi.c
+++ b/drivers/usb/chipidea/ulpi.c
@@ -95,6 +95,9 @@ int ci_ulpi_resume(struct ci_hdrc *ci)
 {
        int cnt = 100000;
 
+       if (ci->platdata->phy_mode != USBPHY_INTERFACE_MODE_ULPI)
+               return 0;
+
        while (cnt-- > 0) {
                if (hw_read(ci, OP_ULPI_VIEWPORT, ULPI_SYNC_STATE))
                        return 0;