AuxXxilium/linux_dsm_epyc7002
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cc995c9ec1
linux_dsm_epyc7002/drivers/usb/gadget/udc
History
Yoshihiro Shimoda cc995c9ec1 usb: gadget: udc: renesas_usb3: add support for usb role swap 
This patch adds support for usb role swap via sysfs "role".

For example:
 1) Connect a usb cable using 2 Salvator-X boards.
  - For A-Device, the cable is connected to CN11 (USB3.0 ch0).
  - For B-Device, the cable is connected to CN9 (USB2.0 ch0).
 2) On A-Device, you input the following command:
  # echo peripheral > /sys/devices/platform/soc/ee020000.usb/role
 3) On B-Device, you input the following command:
  # echo host > /sys/devices/platform/soc/ee080200.usb-phy/role

Then, the A-Device acts as a peripheral and the B-Device acts as
a host. Please note that A-Device must input the following command
if you want the board to act as a host again.
 # echo host > /sys/devices/platform/soc/ee020000.usb/role

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-04-11 10:58:25 +03:00
..
bdc usb: gadget: udc: bdc: remove unnecessary & operation 2016-11-03 10:38:25 +02:00
amd5536udc.c usb: gadget: udc: remove unnecessary variable and update function prototype 2017-04-11 10:58:17 +03:00
amd5536udc.h usb: gadget: amd5536udc: remove unnecessary conditions 2015-10-01 12:40:20 -05:00
at91_udc.c usb: gadget: udc: at91: use PTR_ERR_OR_ZERO() 2016-04-14 09:24:38 +03:00
at91_udc.h usb: Convert pr_warning to pr_warn 2016-11-03 10:38:36 +02:00
atmel_usba_udc.c usb: gadget: udc: atmel: Minor code cleanup 2017-04-11 10:58:24 +03:00
atmel_usba_udc.h USB: changes for v4.11 2017-01-26 15:36:28 +01:00
bcm63xx_udc.c treewide: remove redundant #include <linux/kconfig.h> 2016-10-11 15:06:33 -07:00
core.c usb: gadget: udc-core: Rescan pending list on driver unbind 2017-01-24 11:04:07 +02:00
dummy_hcd.c usb: gadget: dummy_hcd: Fix wrong power status bit clear/reset in dummy_hub_control() 2017-04-11 10:58:21 +03:00
fotg210-udc.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
fotg210.h
fsl_mxc_udc.c
fsl_qe_udc.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
fsl_qe_udc.h
fsl_udc_core.c scripts/spelling.txt: add "intialization" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
fsl_usb2_udc.h usb: Convert pr_warning to pr_warn 2016-11-03 10:38:36 +02:00
fusb300_udc.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
fusb300_udc.h
goku_udc.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
goku_udc.h
gr_udc.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
gr_udc.h
Kconfig usb: gadget: udc: renesas_usb3: add extcon support 2017-04-11 10:58:24 +03:00
lpc32xx_udc.c usb: udc: lpc32xx: remove USB PLL and USB OTG clock management 2016-03-04 15:14:49 +02:00
m66592-udc.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
m66592-udc.h
Makefile usb: gadget: add tracepoints to the gadget API 2016-06-21 10:38:41 +03:00
mv_u3d_core.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
mv_u3d.h
mv_udc_core.c usb: gadget: mv_udc: clarify a switch with an implicit fall-through 2017-03-27 10:46:33 +03:00
mv_udc.h
net2272.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
net2272.h
net2280.c usb: gadget: udc: net2280: Fix tmp reusage in net2280 driver 2017-03-06 17:14:26 +02:00
net2280.h usb: gadget: net2280: add USB2380 support 2016-06-20 12:30:03 +03:00
omap_udc.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
omap_udc.h usb: Convert pr_warning to pr_warn 2016-11-03 10:38:36 +02:00
pch_udc.c usb: gadget: udc: remove pointer dereference after free 2017-03-22 11:21:10 +02:00
pxa25x_udc.c usb: gadget: pxa25x_udc: document endianess better 2016-03-04 15:14:31 +02:00
pxa25x_udc.h usb: Convert pr_warning to pr_warn 2016-11-03 10:38:36 +02:00
pxa27x_udc.c usb: gadget: pxa27x: Remove duplicate function prototype 2017-03-27 10:46:34 +03:00
pxa27x_udc.h usb: gadget: pxa27x_udc: add ep capabilities support 2015-08-04 12:26:52 -05:00
r8a66597-udc.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
r8a66597-udc.h
renesas_usb3.c usb: gadget: udc: renesas_usb3: add support for usb role swap 2017-04-11 10:58:25 +03:00
s3c2410_udc.c usb: gadget: udc: s3c2410: remove unnecessary & operation 2016-11-03 10:38:27 +02:00
s3c2410_udc.h
s3c-hsudc.c usb: gadget: udc: constify usb_ep_ops structures 2017-01-24 11:04:24 +02:00
trace.c usb: gadget: add tracepoints to the gadget API 2016-06-21 10:38:41 +03:00
trace.h usb: gadget: add tracepoints to the gadget API 2016-06-21 10:38:41 +03:00
udc-xilinx.c usb: gadget: udc: udc-xilinx: don't print on ENOMEM 2016-08-30 19:17:37 +02:00