Commit Graph

547557 Commits

Author SHA1 Message Date
Javier Martinez Canillas
e9a267702d ARM: dts: am335x-base0033: Use IOPAD pinmux macro
Use the AM33XX pinmux IOPAD macro to define the physical address instead
of the offset from the padconf address. It makes the DTS easier to read
since matches the addresses listed in the Technical Reference Manual.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-20 09:28:04 -07:00
Javier Martinez Canillas
8a3ecb217f ARM: dts: am335x-igep0033: Use IOPAD pinmux macro
Use the AM33xx pinmux IOPAD macro to define the physical address instead
of the offset from the padconf address. It makes the DTS easier to read
since matches the addresses listed in the Technical Reference Manual.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-20 09:28:04 -07:00
Javier Martinez Canillas
fd20719443 ARM: dts: omap3-igep0020: Use IOPAD pinmux macro
Use the OMAP3 pinmux IOPAD macro to define the physical address instead
of the offset from the padconf address. It makes the DTS easier to read
since matches the addresses listed in the Technical Reference Manual.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-20 09:28:04 -07:00
Vignesh R
f513d22c9c ARM: dts: am437x-gp-evm: Add wakeup interrupt source for pixcir_i2c_ts
On am437x-gp-evm, pixcir_i2c_ts can wakeup the system from low power
state via pinctrl and IO daisy chain using generic wakeirq framework.
With commit 3fffd12839 ("i2c: allow specifying separate wakeup
interrupt in device tree") i2c core allows optional wakeirq to be
specified via device tree. Add wakeup irq entry to enable pixcir_i2c_ts
to wake the system from low power state.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-20 09:28:04 -07:00
Javier Martinez Canillas
56a31e549e ARM: dts: Update Javier Martinez Canillas's email
I see that people are still sending emails to my old address (that no
longer exists) since is the one mentioned in the IGEP DTS. Replace it
with my current email address to avoid this.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-20 09:28:04 -07:00
Mugunthan V N
36958598b7 ARM: dts: dra72-evm: remove cpsw gpio hogging and add mode-gpios
With the current implementation of GPIO hogging and with
gpio-pcf857x is built as module, ethernet doesn't work on boot
and doesn't throw any error/warning to user. Ethernet becomes
operational when inserting gpio-pcf857x module, even this time
there is no error/warning logs to user that ethernet is
operational.

When using with NFS rootfs and gpio-pcf857x as module, board
doesn't boot as it doesn't get any ip address and doesn't throw
any error/warning. To over come this, now cpsw driver tries to
get mode-gpios. When gpio-pcf857x is built as module it will
throw error, so that user can decide either to built in
gpio-pcf857x to continue with nfs boot or choose alternate rootfs
filesystem like sd/ramdisk.

When using mmc/ramdisk as root fs, cpsw will probe defer and
re-probes again when gpio-pcf857x module is inserted and ethernet
becomes operational.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-20 09:16:21 -07:00
Tony Lindgren
23c74bf5fe ARM: dts: Add basic support for isee igepv5
With omap5-board-common.dtsi, we can now easily add support for various omap5
board variants. Let's add minimal support for isee igepv5.

So far I've tested that basic things work, such as serial, USB Ethernet, HDMI
and WLAN.

Note that like omap5-uevm, these boards seem to need to reserve 16MB for a
trap section as in commit 03178c66d2 ("ARM: dts: omap5-evm: Update
available memory to 2032 MB") and also noted in a u-boot commit at
http://marc.info/?l=u-boot&m=134376852603255 and also at
http://patchwork.ozlabs.org/patch/159881/.

Not sure why this is not needed for omap5-cm-t54.dts, maybe because of
different u-boot configuration.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-16 12:32:33 -07:00
Tony Lindgren
ee9a97dbee ARM: dts: Move most of omap5-uevm.dts to omap5-board-common.dtsi
Looks like thevarious omap5-uevm models and igepv5 are very similar. So let's
create omap5-board-common.dtsi to allow fixing up things properly for mainline
kernel to support all these.

Even if we eventually end up having only PMIC + MMC + eMMC + SDIO WLAN + SATA +
USB + HDMI configuration in the omap5-board-common.dtsi, this is the easiest
way to add support for other boards rather than diffing various versions of
out of tree dts files.

My guess is that also omap5-sbc-t54.dts can use this, but I don't have that
board so that will need to be dealt with later on.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-16 12:32:32 -07:00
Tony Lindgren
0efc898a9b ARM: dts: Fix WLAN regression on omap5-uevm
Commit 99f84cae43 ("ARM: dts: add wl12xx/wl18xx bindings") added
device tree bindings for the TI WLAN SDIO on many omap variants.

I recall wondering how come omap5-uevm did not have the WLAN
added and this issue has been bugging me for a while now, and
I finally tracked it down to a bad pinmux regression, and a missing
deferred probe handling for the 32k clock from palmas that's
requested by twl6040.

Basically 392adaf796 ("ARM: dts: omap5-evm: Add mcspi data")
added pin muxing for mcspi4 that conflicts with the onboard
WLAN. While some omap5-uevm don't have WLAN populated, the
pins are not reused for other devices. And as the SDIO bus
should be probed, let's try to enable WLAN by default.

Let's fix the regression and add the WLAN configuration as
done for the other boards in 99f84cae43 ("ARM: dts: add
wl12xx/wl18xx bindings"). And let's use the new MMC pwrseq for
the 32k clock as suggested by Javier Martinez Canillas
<javier@dowhile0.org>.

Note that without a related deferred probe fix for twl6040,
the 32k clock is not initialized if palmas-clk is a module
and twl6040 is built-in.

Let's also use the generic "non-removable" instead of the
legacy "ti,non-removable" property while at it.

And finally, note that omap5 seems to require WAKEUP_EN for
the WLAN GPIO interrupt.

Fixes: 392adaf796 ("ARM: dts: omap5-evm: Add mcspi data")
Cc: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-16 12:32:32 -07:00
Laurent Pinchart
be14641250 ARM: dts: omap3-igep: Use OMAP3_CORE1_IOPAD pinmux macro
Use the macro instead of absolute register offsets to make the code more
readable as the values now match register addresses from the datasheet.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-14 12:28:13 -07:00
Mugunthan V N
267068d83e ARM: dts: dra7xx: am57xx: fix cd-gpios definition as per hardware design and dt binding docs
As per mmc device tree binding documentation card detect gpio has
to be active low signal. When a hardware is designed with active
high card detect, gpio polarity has to be changed with
cd-inverted dt property.

In DRA74x, DRA72x and AM57xx EVMs the card detect gpio is
designed as active low gpio. So correcting the dt card detect
gpio definition.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 16:49:12 -07:00
Mugunthan V N
0731cbdd5f ARM: dts: am43xx: fix cd-gpios definition as per hardware design and dt binding docs
As per mmc device tree binding documentation card detect gpio has
to be active low signal. When a hardware is designed with active
high card detect, gpio polarity has to be changed with
cd-inverted dt property.

In AM43xx the card detect gpio is designed as active low gpio.
So correcting the dt card detect gpio definition.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 16:49:04 -07:00
Mugunthan V N
c7ce74bc92 ARM: dts: am335x: fix cd-gpios definition as per hardware design and dt binding docs
As per mmc device tree binding documentation card detect gpio has
to be active low signal. When a hardware is designed with active
high card detect, gpio polarity has to be changed with
cd-inverted dt property.

In AM335x the card detect gpio is designed as active low gpio.
So correcting the dt card detect gpio definition.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 16:47:00 -07:00
Laurent Pinchart
3993fa63c2 ARM: dts: omap3-igep0020: Remove duplicate uart2 pinmux
uart2 pinmux is already defined in omap3-igep0020-common.dtsi, remove
the duplicate node.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 16:45:20 -07:00
Laurent Pinchart
272c789b8c ARM: dts: omap3-igep: Fix indentation
Use tabs instead of spaces for indentation.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 16:45:18 -07:00
Javier Martinez Canillas
e5c914fffd ARM: dts: omap3-lilly-a83x: Don't use IRQ level flag for a GPIO
The card detect GPIO is using IRQ_TYPE_LEVEL_LOW in the GPIO flag cells
but this defined constant is meant to be used for a IRQ and not a GPIO.
So instead use GPIO_ACTIVE_LOW that seems to be the original intention.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 16:41:41 -07:00
Suman Anna
63c7ecd7b1 ARM: dts: DRA74x: Add IOMMU nodes for DSP2
The DRA74x family of SoCs have a second DSP, that also has
two MMUs just like the DSP1 subsystem. Add the IOMMU nodes
for this DSP2 subsystem in disabled state to the DRA74x
specific DTS file, the nodes would need to be enabled
appropriately in the respective board DTS files.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:53:47 -07:00
Suman Anna
2c7e07c533 ARM: dts: DRA7: Add common IOMMU nodes
The DRA7xx family of SOCs have two IPUs and one DSP processor
subsystems in common. The IOMMU DT nodes have been added for
these processor subsystems, and have been disabled by default.

These MMUs are very similar to those on OMAP4 and OMAP5, with
the only difference being the presence of a second MMU within
the DSP subsystem for the EDMA port. The DSP IOMMUs also need
an additional 'ti,syscon-mmuconfig' property compared to the
IPU IOMMUs.

NOTE: The enabling of these nodes is left to the respective
board dts files.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:53:46 -07:00
Suman Anna
bddbe6db4a ARM: dts: DRA74x: Add dsp2_system syscon node
The DSP_SYSTEM sub-module is a dedicated system control logic
module present within a DRA7 DSP processor sub-system. This
module is responsible for power management, clock generation
and connection to the device PRCM module.

Add a syscon node for this module for the DSP2 processor
sub-system. This is added as a syscon node as it is a common
configuration module that can be used by the different IOMMU
instances and the corresponding remoteproc device.

The node is added to the dra74x.dtsi file, as the DSP2 processor
subsystem is usually present only on the DRA74x variants of the
DRA7 SoC family.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:53:46 -07:00
Suman Anna
99639ace4c ARM: dts: DRA7: Add dsp1_system syscon node
The DSP_SYSTEM sub-module is a dedicated system control logic
module present within a DRA7 DSP processor sub-system. This
module is responsible for power management, clock generation
and connection to the device PRCM module.

Add a syscon node for this module for the DSP1 processor
sub-system. This is added as a syscon node as it is a common
configuration module that can be used by the different IOMMU
instances and the corresponding remoteproc device.

The node is added to the common dra7.dtsi file, as the DSP1
processor sub-system is mostly common across all the variants
of the DRA7 SoC family.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:53:46 -07:00
Javier Martinez Canillas
3a637e008e ARM: dts: Use defined GPIO constants in flags cell for OMAP2+ boards
Many OMAP2+ DTS are not using the defined constants to express
the GPIO polarity. Replace these so the DTS are easier to read.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:51:59 -07:00
Robert Nelson
79a4e64c67 ARM: dts: Add am335x-bonegreen
SeeedStudio BeagleBone Green (BBG) is clone of the BeagleBone Black (BBB) minus
the HDMI port and addition of two Grove connectors (i2c2 and usart2).

This board can be identified by the 1A value after A335BNLT (BBB) in the at24 eeprom:
1A: [aa 55 33 ee 41 33 33 35  42 4e 4c 54 1a 00 00 00 |.U3.A335BNLT....|]

http://beagleboard.org/green
http://www.seeedstudio.com/wiki/Beaglebone_green

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
CC: Tony Lindgren <tony@atomide.com>
CC: Jason Kridner <jkridner@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Suman Anna
ebbf93f0e7 ARM: dts: beagle-x15: Enable the system mailboxes 5 and 6
Enable the System Mailboxes 5 and 6 and the corresponding child
sub-mailbox (IPC 3.x) nodes for the Beagle X15 EVM boards. This
is needed to enable communication with the respective remote
processors IPU1, IPU2, DSP1 and DSP2 from the MPU.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Suman Anna
43914a35d2 ARM: dts: dra72-evm: Enable the system mailboxes 5 and 6
Enable the System Mailboxes 5 and 6 and the corresponding
child sub-mailbox (IPC 3.x) nodes for the DRA72 EVM board.
This is needed to enable communication with the respective
remote processors IPU1, IPU2, and DSP1 from the MPU.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Suman Anna
2bee86799f ARM: dts: dra7-evm: Enable the system mailboxes 5 and 6
Enable the System Mailboxes 5 and 6 and the corresponding
child sub-mailbox (IPC 3.x) nodes for the DRA7 EVM board.
This is needed to enable communication with the respective
remote processors IPU1, IPU2, DSP1 and DSP2 from the MPU.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Suman Anna
48aff9f6fa ARM: dts: DRA72x: Add IPC sub-mailbox nodes for IPU1, IPU2 & DSP1
Add the sub-mailbox nodes that are used to communicate between
MPU and the remote processors IPU1, IPU2 and DSP1. These match the
respective node definitions on DRA74x to maintain compatibility for
the equivalent remote processors. There is no DSP2 on DRA72x, and
so the corresponding sub-mailbox node is not added.

These sub-mailbox nodes are added to match the hard-coded mailbox
configuration used within the TI IPC 3.x software package. The
Dual-Cortex M4 IPU1 and IPU2 processor sub-systems are assumed to
be running in SMP-mode, and hence only a single sub-mailbox node
is added for each.

All these sub-mailbox nodes are left in disabled state, and should
be enabled (and modified if needed) as per the individual product
configuration in the corresponding board dts files.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Suman Anna
a9c8f117f4 ARM: dts: DRA74x: Add IPC sub-mailbox nodes for all IPUs & DSPs
Add the sub-mailbox nodes that are used to communicate between
MPU and the remote processors IPU1, IPU2, DSP1 and DSP2.

The sub-mailbox nodes utilize the System Mailbox instances 5 and 6.
These sub-mailbox nodes are added to match the hard-coded mailbox
configuration used within the TI IPC 3.x software package. The
Dual-Cortex M4 IPU1 and IPU2 processor sub-systems are assumed to
be running in SMP-mode, and hence only a single sub-mailbox node
is added for each.

All these sub-mailbox nodes are left in disabled state, and should
be enabled (and modified if needed) as per the individual product
configuration in the corresponding board dts files.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Teresa Remmet
c72bfb883d ARM: dts: am335x-wega: Clean up regulators
Cleaned up the regulators on the wega board. Created a simple bus,
renamed the regulators according to the schematics and added missing
regulator on wega.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Grygorii Strashko
863987affb ARM: dts: dra7-evm: add gpio key support
dra7-evm has 2 gpio keys wired through TS_LCD_GPIO3, TS_LCD_GPIO4
which in turn connected to PCF8575 GPIO pcf_lcd: gpio@20 expander
pins 2 and 3.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Grygorii Strashko
a96e880885 ARM: dts: dra7-evm: add gpio leds support
dra7-evm has 4 user gpio leds connected to PCF8575 GPIO pcf_lcd:
gpio@20 expander pins [4,5,6,7], so add corresponding DT nodes.

Do not enable any triggers by default as not all of them are proved
to work on -RT.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Grygorii Strashko
4fbdc6ab83 ARM: dts: dra7-evm: add pcf8575 gpio expander (i2c1 addr 20)
This patch adds DT definition for CF8575 GPIO pcf_lcd: gpio@20
expander which is connected to i2c bus 1 and has slave address 0x20.
It allows to control:
- tc_lcd gpios, pins p0-p3
- user leds, pins p4-p7
- control LCD panel power, p15

PCF8575 GPIO pcf_lcd: gpio@20 expander supports interrupt controller
functionality and its INT line is connected to dra7 GPIO6.11 pin.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Peter Ujfalusi
a00e368c19 ARM: dts: am57xx-beagle-x15: Enable analog audio support
The analog audio setup consists of:
McASP3 <-> tlv320aic3104 codec

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Peter Ujfalusi
d929e8bb13 ARM: dts: am57xx-beagle-x15: Add fixed regulator for aic3104's DVDD
The DVDD is supplied via TPS77018DBVT fixed regulator from vdd_3v3

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:37 -07:00
Peter Ujfalusi
a8d3b59cdd ARM: dts: dra72-evm: Audio support
The board uses tlv320aic3106 codec connected to McASP3. The master clock
for the codec and McASP3 is coming from ATL2.
McASP3 is the master on the I2S bus.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 15:00:19 -07:00
Peter Ujfalusi
6ddd5fce84 ARM: dts: dra72-evm: Add gpio hog for vin6_sel_s0 to select audio
The GPIO expander's p1 on i2c5 bus 0x26 address is used for selecting
between audio and VIN6 functionality. For VIN6 use an add on card is
needed while audio is present on the board itself.
Select the audio functionality over the VIN6 in the dts file.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 14:58:46 -07:00
Peter Ujfalusi
61085ee712 ARM: dts: dra72-evm: Add fixed regulator representing DVDD supply for aic3106
The DVDD is supplied via TPS77018DBVT fixed regulator from evm_3v3

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 14:58:38 -07:00
Peter Ujfalusi
a9347bfa9b ARM: dts: dra7-evm: Audio support
The board uses tlv320aic3106 codec connected to McASP3. The master clock
for the codec and McASP3 is coming from ATL2.
McASP3 is the master on the I2S bus.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 14:58:30 -07:00
Peter Ujfalusi
c5d294db75 ARM: dts: dra7-evm: Enable pcf8575 (0x26 address) on i2c2 bus
This GPIO expander is used for controlling various muxes on the board.
By default select audio functionality over VIN6 by setting the P1
(vin6_sel_s0) pin to low.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 14:58:22 -07:00
Peter Ujfalusi
d6818223cd ARM: dts: dra7-evm: Add fixed regulator to be used by aic3106's DVDD
TPS77018DBVT is used to create 1.8V from avm_3v3_sw's 3.3V connected to
aic3106's DVDD.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 14:58:14 -07:00
Peter Ujfalusi
27f39e5f5f ARM: dts: dra7-evm: Rename mmc2_3v3 supply to evm_3v3_sw
Use the name for the supply as it is in the schematics since the same
supply is used for other peripherals than MMC2, like audio.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 14:58:06 -07:00
Peter Ujfalusi
026d4d6db2 ARM: dts: dra7: Add McASP3 node
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 13:56:31 -07:00
Roger Quadros
f95b1064b3 ARM: dts: am437x-gp-evm: Add DCAN sleep pins
Add DCAN sleep pins to save some power during suspend.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-12 13:50:16 -07:00
Linus Torvalds
049e6dde7e Linux 4.3-rc4 2015-10-04 16:57:17 +01:00
Linus Torvalds
30c44659f4 Merge branch 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull strscpy string copy function implementation from Chris Metcalf.

Chris sent this during the merge window, but I waffled back and forth on
the pull request, which is why it's going in only now.

The new "strscpy()" function is definitely easier to use and more secure
than either strncpy() or strlcpy(), both of which are horrible nasty
interfaces that have serious and irredeemable problems.

strncpy() has a useless return value, and doesn't NUL-terminate an
overlong result.  To make matters worse, it pads a short result with
zeroes, which is a performance disaster if you have big buffers.

strlcpy(), by contrast, is a mis-designed "fix" for strlcpy(), lacking
the insane NUL padding, but having a differently broken return value
which returns the original length of the source string.  Which means
that it will read characters past the count from the source buffer, and
you have to trust the source to be properly terminated.  It also makes
error handling fragile, since the test for overflow is unnecessarily
subtle.

strscpy() avoids both these problems, guaranteeing the NUL termination
(but not excessive padding) if the destination size wasn't zero, and
making the overflow condition very obvious by returning -E2BIG.  It also
doesn't read past the size of the source, and can thus be used for
untrusted source data too.

So why did I waffle about this for so long?

Every time we introduce a new-and-improved interface, people start doing
these interminable series of trivial conversion patches.

And every time that happens, somebody does some silly mistake, and the
conversion patch to the improved interface actually makes things worse.
Because the patch is mindnumbing and trivial, nobody has the attention
span to look at it carefully, and it's usually done over large swatches
of source code which means that not every conversion gets tested.

So I'm pulling the strscpy() support because it *is* a better interface.
But I will refuse to pull mindless conversion patches.  Use this in
places where it makes sense, but don't do trivial patches to fix things
that aren't actually known to be broken.

* 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: use global strscpy() rather than private copy
  string: provide strscpy()
  Make asm/word-at-a-time.h available on all architectures
2015-10-04 16:31:13 +01:00
Linus Torvalds
15ecf9a986 Assorted fixes for md in 4.3-rc
Two tagged for -stable
 One is really a cleanup to match and improve kmemcache interface.
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Merge tag 'md/4.3-fixes' of git://neil.brown.name/md

Pull md fixes from Neil Brown:
 "Assorted fixes for md in 4.3-rc.

  Two tagged for -stable, and one is really a cleanup to match and
  improve kmemcache interface.

* tag 'md/4.3-fixes' of git://neil.brown.name/md:
  md/bitmap: don't pass -1 to bitmap_storage_alloc.
  md/raid1: Avoid raid1 resync getting stuck
  md: drop null test before destroy functions
  md: clear CHANGE_PENDING in readonly array
  md/raid0: apply base queue limits *before* disk_stack_limits
  md/raid5: don't index beyond end of array in need_this_block().
  raid5: update analysis state for failed stripe
  md: wait for pending superblock updates before switching to read-only
2015-10-04 11:47:28 +01:00
Linus Torvalds
0d8770815f Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "This week's round of MIPS fixes:
   - Fix JZ4740 build
   - Fix fallback to GFP_DMA
   - FP seccomp in case of ENOSYS
   - Fix bootmem panic
   - A number of FP and CPS fixes
   - Wire up new syscalls
   - Make sure BPF assembler objects can properly be disassembled
   - Fix BPF assembler code for MIPS I"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: scall: Always run the seccomp syscall filters
  MIPS: Octeon: Fix kernel panic on startup from memory corruption
  MIPS: Fix R2300 FP context switch handling
  MIPS: Fix octeon FP context switch handling
  MIPS: BPF: Fix load delay slots.
  MIPS: BPF: Do all exports of symbols with FEXPORT().
  MIPS: Fix the build on jz4740 after removing the custom gpio.h
  MIPS: CPS: #ifdef on CONFIG_MIPS_MT_SMP rather than CONFIG_MIPS_MT
  MIPS: CPS: Don't include MT code in non-MT kernels.
  MIPS: CPS: Stop dangling delay slot from has_mt.
  MIPS: dma-default: Fix 32-bit fall back to GFP_DMA
  MIPS: Wire up userfaultfd and membarrier syscalls.
2015-10-04 11:41:58 +01:00
Linus Torvalds
3e519dde1e Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "This update contains:

   - Fix for a long standing race affecting /proc/irq/NNN

   - One line fix for ARM GICV3-ITS counting the wrong data

   - Warning silencing in ARM GICV3-ITS.  Another GCC trying to be
     overly clever issue"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3-its: Count additional LPIs for the aliased devices
  irqchip/gic-v3-its: Silence warning when its_lpi_alloc_chunks gets inlined
  genirq: Fix race in register_irq_proc()
2015-10-04 11:40:09 +01:00
Markos Chandras
d218af7849 MIPS: scall: Always run the seccomp syscall filters
The MIPS syscall handler code used to return -ENOSYS on invalid
syscalls. Whilst this is expected, it caused problems for seccomp
filters because the said filters never had the change to run since
the code returned -ENOSYS before triggering them. This caused
problems on the chromium testsuite for filters looking for invalid
syscalls. This has now changed and the seccomp filters are always
run even if the syscall is invalid. We return -ENOSYS once we
return from the seccomp filters. Moreover, similar codepaths have
been merged in the process which simplifies somewhat the overall
syscall code.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11236/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-10-04 12:10:56 +02:00
Linus Torvalds
2cf30826bb Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Fixes all around the map: W+X kernel mapping fix, WCHAN fixes, two
  build failure fixes for corner case configs, x32 header fix and a
  speling fix"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/headers/uapi: Fix __BITS_PER_LONG value for x32 builds
  x86/mm: Set NX on gap between __ex_table and rodata
  x86/kexec: Fix kexec crash in syscall kexec_file_load()
  x86/process: Unify 32bit and 64bit implementations of get_wchan()
  x86/process: Add proper bound checks in 64bit get_wchan()
  x86, efi, kasan: Fix build failure on !KASAN && KMEMCHECK=y kernels
  x86/hyperv: Fix the build in the !CONFIG_KEXEC_CORE case
  x86/cpufeatures: Correct spelling of the HWP_NOTIFY flag
2015-10-03 10:53:05 -04:00
Linus Torvalds
37cc7ab1d2 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
 "An abs64() fix in the watchdog driver, and two clocksource driver
  NO_IRQ assumption fixes"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: Fix abs() usage w/ 64bit values
  clocksource/drivers/keystone: Fix bad NO_IRQ usage
  clocksource/drivers/rockchip: Fix bad NO_IRQ usage
2015-10-03 10:51:41 -04:00