Badhri Jagan Sridharan 8dc4bd0736 usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS) ... PD 3.0 spec defines a new mechanism for power role swap called Fast role swap. This change enables TCPM to support FRS when acting as sink. Once the explicit contract is negotiated, sink port is expected to query the source port for sink caps to determine whether the source is FRS capable. Bits 23 & 24 of fixed pdo of the sink caps from the source, when set, indicates the current needed by the source when fast role swap is in progress(Implicit contract phasae). 0 indicates that the source does not support Fast Role Swap. Upon receiving the FRS signal from the source, TCPC(TCPM_FRS_EVENT) informs TCPM to start the Fast role swap sequence. 1. TCPM sends FRS PD message: FR_SWAP_SEND 2. If response is not received within the expiry of SenderResponseTimer, Error recovery is triggered.: FR_SWAP_SEND_TIMEOUT 3. Upon receipt of the accept message, TCPM waits for PSSourceOffTimer for PS_READY message from the partner: FR_SWAP_SNK_SRC_NEW_SINK_READY. TCPC is expected to autonomously turn on vbus once the FRS signal is received and vbus voltage falls below vsafe5v within tSrcFrSwap. This is different from traditional power role swap where the vbus sourcing is turned on by TCPM. 4. By this time, TCPC most likely would have started to source vbus, TCPM waits for tSrcFrSwap to see if the lower level TCPC driver signals TCPM_SOURCING_VBUS event: FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED. 5. When TCPC signals sourcing vbus, TCPM sends PS_READY msg and changes the CC pin from Rd to Rp. This is the end of fast role swap sequence and TCPM initiates the sequnce to negotiate explicit contract by transitioning into SRC_STARTUP after SwapSrcStart. The code is written based on the sequence described in "Figure 8-107: Dual-role Port in Sink to Source Fast Role Swap State Diagram" of USB Power Delivery Specification Revision 3.0, Version 1.2. Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20201008061556.1402293-7-badhri@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-10-08 09:28:22 +02:00
..
accessibility	Char/Misc driver fixes for 5.9-rc3	2020-08-26 10:50:50 -07:00
acpi	Merge 5.9-rc8 into usb-next	2020-10-05 08:54:36 +02:00
amba
android	drivers: android: Fix the SPDX comment style	2020-07-29 17:05:44 +02:00
ata	libata-5.9-2020-09-04	2020-09-04 13:19:19 -07:00
atm	atm: eni: fix the missed pci_disable_device() for eni_init_one()	2020-09-04 21:42:57 -07:00
auxdisplay	A trivial patch for auxdisplay:	2020-09-05 14:22:46 -07:00
base	mm: don't rely on system state to detect hot-plug operations	2020-09-26 10:33:57 -07:00
bcma	bcma: gpio: Use irqchip template	2020-08-02 18:26:51 +03:00
block	rbd: require global CAP_SYS_ADMIN for mapping and unmapping	2020-09-07 13:14:30 +02:00
bluetooth	Bluetooth: ath3k: use usb_control_msg_send() and usb_control_msg_recv()	2020-09-25 16:33:59 +02:00
bus	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
cdrom
char	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2020-08-30 15:53:44 -07:00
clk	clk: socfpga: stratix10: fix the divider for the emac_ptp_free_clk	2020-09-22 12:54:41 -07:00
clocksource	clocksource: clint: Export clint_time_val for modules	2020-09-29 23:55:27 -07:00
connector
counter	counter: microchip-tcb-capture: check the correct variable	2020-08-22 11:38:42 +01:00
cpufreq	cpufreq: intel_pstate: Fix missing return statement	2020-09-30 17:37:23 +02:00
cpuidle	cpuidle: Drop misleading comments about RCU usage	2020-09-22 19:32:03 +02:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2020-08-30 15:53:44 -07:00
dax	dax: Fix stack overflow when mounting fsdax pmem device	2020-09-20 08:57:36 -07:00
dca
devfreq	PM / devfreq: tegra30: Disable clock on error in probe	2020-09-23 13:35:58 +09:00
dio
dma	dmaengine: dmatest: Prevent to run on misconfigured channel	2020-09-22 20:18:05 +05:30
dma-buf	dmabuf: fix NULL pointer dereference in dma_buf_release()	2020-09-21 11:17:06 +02:00
edac	EDAC/ghes: Check whether the driver is on the safe list correctly	2020-09-15 09:42:15 +02:00
eisa
extcon
firewire	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
firmware	Merge 5.0-rc6 into usb-next	2020-09-21 09:06:42 +02:00
fpga	Linux 5.8-rc7	2020-07-27 11:49:37 +02:00
fsi
gnss
gpio	Some late GPIO fixes for the v5.9 series:	2020-10-02 09:51:42 -07:00
gpu	Merge tag 'amd-drm-fixes-5.9-2020-09-30' of git://people.freedesktop.org/~agd5f/linux into drm-fixes	2020-10-01 15:25:33 +10:00
greybus	greybus: Use fallthrough pseudo-keyword	2020-07-29 16:58:08 +02:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2020-09-02 12:55:46 -07:00
hsi	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
hv	hyperv-fixes for 5.9-rc6	2020-09-15 16:20:43 -07:00
hwmon	hwmon fixes for v5.9-rc3	2020-08-29 12:37:00 -07:00
hwspinlock
hwtracing	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
i2c	i2c: npcm7xx: Clear LAST bit after a failed transaction.	2020-09-27 20:05:27 +02:00
i3c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
ide	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
idle	cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic	2020-08-26 12:41:53 +02:00
iio	iio: adc: qcom-spmi-adc5: fix driver name	2020-09-22 13:33:19 +01:00
infiniband	RDMA/core: Fix ordering of CQ pool destruction	2020-09-14 15:20:18 -03:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-10-03 11:37:23 -07:00
interconnect	interconnect: qcom: Fix small BW votes being truncated to zero	2020-09-04 00:07:12 +03:00
iommu	iommu/vt-d: Fix lockdep splat in iommu_flush_dev_iotlb()	2020-10-01 14:54:17 +02:00
ipack
irqchip	A set of fixes for interrupt chip drivers:	2020-08-30 11:56:54 -07:00
isdn	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
leds	LEDs changes for 5.9-rc1.	2020-08-05 19:24:27 -07:00
lightnvm	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
macintosh	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mailbox	iomap: constify ioreadX() iomem argument (as in generic implementation)	2020-08-14 19:56:57 -07:00
mcb
md	dm: fix comment in dm_process_bio()	2020-09-21 19:49:15 -04:00
media	media fixes for v5.9-rc7	2020-09-24 09:05:04 -07:00
memory	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
memstick	memstick: Skip allocating card when removing host	2020-09-28 12:16:13 +02:00
message	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mfd	- Bug Fixes	2020-08-28 10:15:33 -07:00
misc	Char / Misc driver fixes for 5.9-rc5	2020-09-13 08:52:21 -07:00
mmc	mmc: sdhci: Workaround broken command queuing on Intel GLK based IRBIS models	2020-09-28 12:16:47 +02:00
most	drivers: most: add USB adapter driver	2020-07-31 14:38:12 +02:00
mtd	Revert "mtd: spi-nor: Add capability to disable flash quad mode"	2020-09-14 20:58:27 +05:30
mux	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
net	Merge 5.9-rc8 into usb-next	2020-10-05 08:54:36 +02:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-09-03 18:50:48 -07:00
ntb	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
nubus
nvdimm	libnvdimm: KASAN: global-out-of-bounds Read in internal_create_group	2020-08-17 14:47:38 -06:00
nvme	block-5.9-2020-09-25	2020-09-26 11:07:36 -07:00
nvmem	nvmem: qcom-spmi-sdam: Enable multiple devices	2020-07-29 17:12:09 +02:00
of	of: address: Work around missing device_type property in pcie nodes	2020-08-19 16:30:57 -06:00
opp	Merge branch 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm	2020-09-01 19:44:20 +02:00
oprofile
parisc	Merge branch 'parisc-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux	2020-08-12 12:41:15 -07:00
parport	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
pci	Merge 5.9-rc8 into usb-next	2020-10-05 08:54:36 +02:00
pcmcia	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
perf	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
phy	Merge 5.9-rc8 into usb-next	2020-10-05 08:54:36 +02:00
pinctrl	pinctrl: mediatek: check mtk_is_virt_gpio input parameter	2020-10-01 09:51:36 +02:00
platform	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
pnp
power	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
powercap	powercap: RAPL: Add support for Lakefield	2020-09-16 14:16:04 +02:00
pps
ps3	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
ptp	ptp: ptp_clockmatrix: use i2c_master_send for i2c write	2020-08-19 16:23:22 -07:00
pwm	pwm: Changes for v5.9-rc1	2020-08-14 16:00:09 -07:00
rapidio	rapidio: Replace 'select' DMAENGINES 'with depends on'	2020-09-05 19:52:54 +03:00
ras
regulator	regulator: Fix for v5.9	2020-09-25 15:16:01 -07:00
remoteproc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
reset	Linux 5.9-rc3	2020-08-31 07:11:45 +02:00
rpmsg	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
rtc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
s390	s390 fixes for 5.9-rc7	2020-09-26 11:01:18 -07:00
sbus
scsi	SCSI fixes on 20201002	2020-10-02 14:42:13 -07:00
sfi
sh	iomap: constify ioreadX() iomem argument (as in generic implementation)	2020-08-14 19:56:57 -07:00
siox
slimbus
soc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
soundwire	soundwire: fix double free of dangling pointer	2020-09-03 14:10:19 +05:30
spi	spi: Fixes for v5.9	2020-09-25 15:21:54 -07:00
spmi
ssb	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
staging	phy for 5.9	2020-10-02 13:45:00 +02:00
target	SCSI fixes on 20201002	2020-10-02 14:42:13 -07:00
tc
tee
thermal	- Fix bogus thermal shutdowns for omap4430 where bogus values	2020-09-04 12:49:03 -07:00
thunderbolt	thunderbolt: Changes for v5.10 merge window	2020-09-30 09:42:36 +02:00
tty	serial: 8250_pci: Add Realtek 816a and 816b	2020-09-16 13:23:33 +02:00
uio
usb	usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS)	2020-10-08 09:28:22 +02:00
vdpa	vdpa/mlx5: Avoid warnings about shifts on 32-bit platforms	2020-08-26 08:13:59 -04:00
vfio	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
vhost	vhost-vdpa: fix backend feature ioctls	2020-09-24 05:54:36 -04:00
video	TTY/Serial/fbcon fixes for 5.9-rc6	2020-09-20 10:46:26 -07:00
virt
virtio	virtio: pci: constify ioreadX() iomem argument (as in generic implementation)	2020-08-14 19:56:57 -07:00
visorbus
vlynq
vme
w1
watchdog	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
xen	xen/events: don't use chip_data for legacy IRQs	2020-10-01 14:45:26 +02:00
zorro
Kconfig
Makefile