linux-toradex.git/Documentation, branch v4.1.13

MFD/OF: document MFD devices and handle simple-mfd

2015-11-09T22:33:39+00:00

commit 22869a9eca4ea5b534538d160b68c7aef44e378a upstream.

This defines a new compatible option for MFD devices "simple-mfd" that will
make the OF core spawn child devices for all subnodes of that MFD device.
It is optional but handy for things like syscon and possibly other
simpler MFD devices.

Since there was no file to put the documentation in, I took this opportunity
to make a small writeup on MFD devices and add the compatible definition
there.

Suggested-by: Lee Jones 
Acked-by: Lee Jones 
Acked-by: Antoine Tenart 
Acked-by: Alexandre Belloni 
Cc: Arnd Bergmann 
Cc: Devicetree 
Cc: Rob Herring 
Cc: Benjamin Herrenschmidt 
Cc: Grant Likely 
Cc: Pawel Moll 
Cc: Mark Rutland 
Cc: Ian Campbell 
Cc: Kumar Gala 
Signed-off-by: Linus Walleij 
Cc: Henrik Juul Pedersen 
Signed-off-by: Greg Kroah-Hartman

docs: update HOWTO for 3.x -> 4.x versioning

2015-10-22T21:43:22+00:00

commit e4144fe5d47c91c92d36cdbd5f31ed8d6e3a57ab upstream.

The HOWTO document needed updating for the new kernel versioning.

Signed-off-by: Mario Carrillo 
Signed-off-by: Jonathan Corbet 
Signed-off-by: Greg Kroah-Hartman

of_mdio: add new DT property 'managed' to specify the PHY management type

2015-10-03T11:49:17+00:00

[ Upstream commit 4cba5c2103657d43d0886e4cff8004d95a3d0def in net-next tree,
  will be pushed to Linus very soon. ]

Currently the PHY management type is selected by the MAC driver arbitrary.
The decision is based on the presence of the "fixed-link" node and on a
will of the driver's authors.
This caused a regression recently, when mvneta driver suddenly started
to use the in-band status for auto-negotiation on fixed links.
It appears the auto-negotiation may not work when expected by the MAC driver.
Sebastien Rannou explains:
<< Yes, I confirm that my HW does not generate an in-band status. AFAIK, it's
a PHY that aggregates 4xSGMIIs to 1xQSGMII ; the MAC side of the PHY (with
inband status) is connected to the switch through QSGMII, and in this context
we are on the media side of the PHY. >>
https://lkml.org/lkml/2015/7/10/206

This patch introduces the new string property 'managed' that allows
the user to set the management type explicitly.
The supported values are:
"auto" - default. Uses either MDIO or nothing, depending on the presence
of the fixed-link node
"in-band-status" - use in-band status

Signed-off-by: Stas Sergeev 

CC: Rob Herring 
CC: Pawel Moll 
CC: Mark Rutland 
CC: Ian Campbell 
CC: Kumar Gala 
CC: Florian Fainelli 
CC: Grant Likely 
CC: devicetree@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: netdev@vger.kernel.org
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

Doc: ABI: testing: configfs-usb-gadget-sourcesink

2015-09-21T17:05:42+00:00

commit 4bc58eb16bb2352854b9c664cc36c1c68d2bfbb7 upstream.

Fix the name of attribute

Signed-off-by: Peter Chen 
Signed-off-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

Doc: ABI: testing: configfs-usb-gadget-loopback

2015-09-21T17:05:42+00:00

commit 8cd50626823c00ca7472b2f61cb8c0eb9798ddc0 upstream.

Fix the name of attribute

Signed-off-by: Peter Chen 
Signed-off-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

doc: usb: gadget-testing: using the updated testusb.c

2015-09-21T17:05:37+00:00

commit f811a38300be3cdb603171aea5ad3fb42b71ca53 upstream.

testusb.c at http://www.linux-usb.org/usbtest/ is out of date,
using the one at the kernel source folder.

Signed-off-by: Peter Chen 
Signed-off-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

Input: alps - only Dell laptops have separate button bits for v2 dualpoint sticks

2015-08-17T03:52:25+00:00

commit 073e570d7c2caae9910a993d56f340be4548a4a8 upstream.

It turns out that only Dell laptops have the separate button bits for
v2 dualpoint sticks and that commit 92bac83dd79e ("Input: alps - non
interleaved V2 dualpoint has separate stick button bits") causes
regressions on Toshiba laptops.

This commit adds a check for Dell laptops to the code for handling these
extra button bits, fixing this regression.

This patch has been tested on a Dell Latitude D620 to make sure that it
does not reintroduce the original problem.

Reported-and-tested-by: Douglas Christman 
Signed-off-by: Hans de Goede 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman

clk: keystone: add support for post divider register for main pll

2015-08-17T03:52:17+00:00

commit 02fdfd708fd252a778709beb6c65d5e7360341ac upstream.

Main PLL controller has post divider bits in a separate register in
pll controller. Use the value from this register instead of fixed
divider when available.

Signed-off-by: Murali Karicheri 
Signed-off-by: Michael Turquette 
Signed-off-by: Greg Kroah-Hartman

hwmon: (nct7904) Rename pwm attributes to match hwmon ABI

2015-08-10T19:21:58+00:00

commit 0d6aaffc3a6db642e0a165ba4d17d6d7bbaf5201 upstream.

pwm attributes have well defined names, which should be used.

Cc: Vadim V. Vlasov 
Signed-off-by: Guenter Roeck 
Signed-off-by: Greg Kroah-Hartman

kbuild: Allow arch Makefiles to override {cpp,ld,c}flags

2015-08-10T19:21:52+00:00

commit 61754c18752ffb78145671e94f053fb202fff041 upstream.

Since commit a1c48bb1 (Makefile: Fix unrecognized cross-compiler command
line options), the arch Makefile is included earlier by the main
Makefile, preventing the arc architecture to set its -O3 compiler
option. Since there might be more use cases for an arch Makefile to
fine-tune the options, add support for ARCH_CPPFLAGS, ARCH_AFLAGS and
ARCH_CFLAGS variables that are appended to the respective kbuild
variables. The user still has the final say via the KCPPFLAGS, KAFLAGS
and KCFLAGS variables.

Reported-by: Vineet Gupta 
Signed-off-by: Michal Marek 
Signed-off-by: Greg Kroah-Hartman