WSL2-Linux-Kernel/Documentation
Mugunthan V N 1d147ccbfc drivers: net: cpsw: Add support to drive gpios for ethernet to be functional
In DRA72x EVM, by default slave 1 is connected to the onboard
phy, but slave 2 pins are also muxed with video input module
which is controlled by pcf857x gpio and currently to select slave
0 to connect to phy gpio hogging is used, but with
omap2plus_defconfig the pcf857x gpio is built as module. So when
using NFS on DRA72x EVM, board doesn't boot as gpio hogging do
not set proper gpio state to connect slave 0 to phy as it is
built as module and you do not see any errors for not setting
gpio and just mentions dhcp reply not got.

To solve this issue, introducing "mode-gpios" in DT when gpio
based muxing is required. This will throw a warning when gpio
get fails and returns probe defer. When gpio-pcf857x module is
installed, cpsw probes again and ethernet becomes functional.
Verified this on DRA72x with pcf as module and ramdisk.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-15 12:38:01 -07:00
..
ABI xen: features and fixes for 4.3-rc0 2015-09-08 11:46:48 -07:00
DocBook pwm: Changes for v4.3-rc1 2015-09-09 10:55:32 -07:00
EDID
PCI
RCU Merge branches 'doc.2015.07.15a' and 'torture.2015.07.15a' into HEAD 2015-08-04 08:42:02 -07:00
accounting
acpi ACPI / Documentation: Update method tracing documentation. 2015-08-07 02:42:22 +02:00
aoe
arm ARM: SoC platform updates for v4.3 2015-09-01 12:18:40 -07:00
arm64 arm64/Documentation: clarify wording regarding memory below the Image 2015-07-29 18:32:10 +01:00
auxdisplay
backlight
blackfin
block Documentation: update notes in biovecs about arbitrarily sized bios 2015-08-13 12:32:07 -06:00
blockdev zsmalloc: account the number of compacted pages 2015-09-08 15:35:28 -07:00
bus-devices
cdrom
cgroups Merge branch 'for-4.3/blkcg' of git://git.kernel.dk/linux-block 2015-09-10 18:56:14 -07:00
cma
connector
console
cpu-freq cpufreq: remove redundant CPUFREQ_INCOMPATIBLE notifier event 2015-09-01 15:50:38 +02:00
cpuidle
cris
crypto
development-process
device-mapper dm raid: document RAID 4/5/6 discard support 2015-08-31 15:05:31 -04:00
devicetree drivers: net: cpsw: Add support to drive gpios for ethernet to be functional 2015-09-15 12:38:01 -07:00
dmaengine Documentation: dmaengine: Add DMA_CTRL_REUSE documentation 2015-08-17 13:46:22 +05:30
driver-model
dvb
early-userspace
extcon
fault-injection futex: Fault/error injection capabilities 2015-07-20 11:45:45 +02:00
fb Documentation/fb: add documentation for sm712fb 2015-08-07 15:05:01 -07:00
features Metag architecture changes for v4.3 2015-09-09 10:27:59 -07:00
filesystems Merge branch 'akpm' (patches from Andrew) 2015-09-08 17:52:23 -07:00
firmware_class
fmc
frv
gpio Documentation: gpio: consumer: describe active low property 2015-08-17 10:38:52 +02:00
hid
hwmon hwmon: (fam15h_power) Add documentation for new processors support 2015-08-27 07:51:15 -07:00
i2c i2c: support 10 bit and slave addresses in sysfs 'new_device' 2015-08-24 14:05:15 +02:00
ia64
ide
infiniband IB/hfi1: add driver files 2015-08-28 22:59:36 -04:00
input Merge branch 'next' into for-linus 2015-09-03 10:01:44 -07:00
ioctl platform-drivers-x86 for 4.3-1 2015-09-08 16:26:18 -07:00
isdn
ja_JP
kbuild modsign: Allow password to be specified for signing key 2015-08-07 16:26:14 +01:00
kdump
ko_KR
laptops
leds
locking
m68k
memory-devices
metag
mic
mips
misc-devices mei: add async event notification ioctls 2015-08-03 17:30:00 -07:00
mmc
mn10300
mtd
namespaces
netlabel
networking Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-09-03 08:08:17 -07:00
nfc
nios2
nvdimm
nvmem Documentation: nvmem: add nvmem api level and how-to doc 2015-08-05 13:43:45 -07:00
parisc
pcmcia pcmcia: Fix typo in locking documentation 2015-08-07 14:34:58 +02:00
phy
platform
power Power management and ACPI material for v4.3-rc1 2015-09-01 19:45:46 -07:00
powerpc SCSI misc on 20150901 2015-09-02 12:22:54 -07:00
pps
prctl
pti
ptp
rapidio
s390 KVM: s390: remove outdated documentation 2015-07-29 11:02:35 +02:00
scheduler
scsi
security Merge branch 'smack-for-4.3' of https://github.com/cschaufler/smack-next into next 2015-08-11 11:18:53 +10:00
serial
sh
sound
spi
sysctl mm/page_alloc.c: fix a misleading comment 2015-09-08 15:35:28 -07:00
target Documentation/target: Fix tcm_mod_builder.py build breakage 2015-07-24 17:48:55 -07:00
thermal
timers
tpm
trace Mostly this is just clean ups and micro optimizations. 2015-09-08 14:04:14 -07:00
usb Revert "usb: interface authorization: Documentation part" 2015-08-18 09:57:15 -07:00
vDSO
video4linux
virtual Patch queue for ppc - 2015-08-22 2015-08-22 14:57:59 -07:00
vm proc: export idle flag via kpageflags 2015-09-10 13:29:01 -07:00
w1
watchdog
wimax
x86 Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-09-01 10:07:40 -07:00
xtensa
zh_CN
00-INDEX
BUG-HUNTING
Changes Documentation/Changes: Now need OpenSSL devel packages for module signing 2015-08-28 08:00:30 +10:00
CodeOfConflict
CodingStyle
DMA-API-HOWTO.txt
DMA-API.txt mm: add dma_pool_zalloc() call to DMA API 2015-09-08 15:35:28 -07:00
DMA-ISA-LPC.txt
DMA-attributes.txt
HOWTO docs: update HOWTO for 3.x -> 4.x versioning 2015-08-24 11:28:17 -06:00
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
Intel-IOMMU.txt x86/vt-d: Fix documentation of DRHD 2015-08-25 10:44:49 +02:00
Makefile
ManagementStyle
SAK.txt
SM501.txt
SecurityBugs
SubmitChecklist
SubmittingDrivers
SubmittingPatches Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2015-09-01 18:46:42 -07:00
VGA-softcursor.txt
adding-syscalls.txt Documentation: describe how to add a system call 2015-08-13 17:54:06 -06:00
applying-patches.txt
assoc_array.txt
atomic_ops.txt locking/Documentation: Clarify failed cmpxchg() memory ordering semantics 2015-08-03 10:57:09 +02:00
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
bus-virt-phys-mapping.txt
cachetlb.txt
circular-buffers.txt
clk.txt clk: change clk_ops' ->determine_rate() prototype 2015-07-27 18:12:01 -07:00
coccinelle.txt
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt
digsig.txt
dma-buf-sharing.txt
dontdiff
dynamic-debug-howto.txt
edac.txt
efi-stub.txt
eisa.txt
email-clients.txt fix Evolution submenu name in email-clients.txt 2015-07-24 15:05:57 +02:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gdb-kernel-debugging.txt
highuid.txt
hsi.txt
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kasan.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt xen: features and fixes for 4.3-rc0 2015-09-08 11:46:48 -07:00
kernel-per-CPU-kthreads.txt
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt
kref.txt
kselftest.txt
ldm.txt
local_ops.txt
lockup-watchdogs.txt
logo.gif
logo.txt
lzo.txt
magic-number.txt
mailbox.txt Documentation: minor typo fix in mailbox.txt 2015-08-13 18:03:18 -06:00
md-cluster.txt md-cluster: fix deadlock issue on message lock 2015-08-31 19:41:41 +02:00
md.txt
media-framework.txt
memory-barriers.txt Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-09-03 15:46:07 -07:00
memory-hotplug.txt
men-chameleon-bus.txt Documentation: Minor changes to men-chameleon-bus.txt 2015-07-24 15:15:17 +02:00
module-signing.txt Move certificate handling to its own directory 2015-08-14 16:06:13 +01:00
mono.txt
nommu-mmap.txt
ntb.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt
pinctrl.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
pwm.txt
ramoops.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt
serial-console.txt
sgi-ioc4.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
static-keys.txt jump label, locking/static_keys: Update docs 2015-08-03 11:51:14 +02:00
svga.txt
sysfs-rules.txt
sysrq.txt mm, oom: do not panic for oom kills triggered from sysrq 2015-09-08 15:35:28 -07:00
this_cpu_ops.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt
vgaarbiter.txt
video-output.txt
vme_api.txt
volatile-considered-harmful.txt
workqueue.txt
xillybus.txt
xz.txt
zorro.txt