[PATCH v5 8/8] usb: misc: onboard_hub: add support for XMOS XVF3500

[Javier Carrasco]

The XMOS XVF3500 VocalFusion Voice Processor[1] is a low-latency, 32-bit
multicore controller for voice processing.

This device requires a specific power sequence, which consists of
enabling the regulators that control the 3V3 and 1V0 device supplies,
and a reset de-assertion after a delay of at least 100ns. Such power
sequence is already supported by the onboard_hub driver, and it can be
reused for non-hub USB devices as well.

Once in normal operation, the XVF3500 registers itself as a USB device,
and it does not require any device-specific operations in the driver.

[1] https://www.xmos.com/xvf3500/

Signed-off-by: Javier Carrasco <javier.carra...@wolfvision.net>
---
 drivers/usb/misc/onboard_usb_dev.c | 2 ++
 drivers/usb/misc/onboard_usb_dev.h | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/usb/misc/onboard_usb_dev.c 
b/drivers/usb/misc/onboard_usb_dev.c
index df0ed172c7ec..50f84c5278a2 100644
--- a/drivers/usb/misc/onboard_usb_dev.c
+++ b/drivers/usb/misc/onboard_usb_dev.c
@@ -405,6 +405,7 @@ static struct platform_driver onboard_dev_driver = {
 #define VENDOR_ID_REALTEK      0x0bda
 #define VENDOR_ID_TI           0x0451
 #define VENDOR_ID_VIA          0x2109
+#define VENDOR_ID_XMOS         0x20B1
 
 /*
  * Returns the onboard_dev platform device that is associated with the USB
@@ -497,6 +498,7 @@ static const struct usb_device_id onboard_dev_id_table[] = {
        { USB_DEVICE(VENDOR_ID_TI, 0x8142) }, /* TI USB8041 2.0 */
        { USB_DEVICE(VENDOR_ID_VIA, 0x0817) }, /* VIA VL817 3.1 */
        { USB_DEVICE(VENDOR_ID_VIA, 0x2817) }, /* VIA VL817 2.0 */
+       { USB_DEVICE(VENDOR_ID_XMOS, 0x0013) }, /* XVF3500 */
        {}
 };
 MODULE_DEVICE_TABLE(usb, onboard_dev_id_table);
diff --git a/drivers/usb/misc/onboard_usb_dev.h 
b/drivers/usb/misc/onboard_usb_dev.h
index 106480ce72b5..858f5814165a 100644
--- a/drivers/usb/misc/onboard_usb_dev.h
+++ b/drivers/usb/misc/onboard_usb_dev.h
@@ -78,6 +78,13 @@ static const struct onboard_dev_pdata vialab_vl817_data = {
        .is_hub = true,
 };
 
+static const struct onboard_dev_pdata xmos_xvf3500_data = {
+       .reset_us = 1,
+       .num_supplies = 2,
+       .supply_names = { "vdd", "vddio" },
+       .is_hub = false,
+};
+
 static const struct of_device_id onboard_dev_match[] = {
        { .compatible = "usb424,2412", .data = &microchip_usb424_data, },
        { .compatible = "usb424,2514", .data = &microchip_usb424_data, },
@@ -99,6 +106,7 @@ static const struct of_device_id onboard_dev_match[] = {
        { .compatible = "usbbda,5414", .data = &realtek_rts5411_data, },
        { .compatible = "usb2109,817", .data = &vialab_vl817_data, },
        { .compatible = "usb2109,2817", .data = &vialab_vl817_data, },
+       { .compatible = "usb20b1,0013", .data = &xmos_xvf3500_data, },
        {}
 };
 

-- 
2.40.1