imx7d-sdb has WDOG1_B pin connected to the PMIC.

Pass the 'fsl,ext-reset-output' property so that the watchdog
can trigger a system POR reset via the PMIC.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

imx6qdl-sabresd has WDOG2_B pin connected to the PMIC.

Pass the 'fsl,ext-reset-output' property so that the watchdog
can trigger a system POR reset via the PMIC.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The Utilite Pro has a mmc card slot connected to the usdhc3
controller. There is no card detection until hardware revision 1.3.

Add support for it and signal the controller with the broken-cd
property that polling has to be used to detect a card.
Signed-off-by: NChristopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The current ldo settings of the cm-fx6 do not allow 1.2GHz cpu
frequency. At this frequency the module behaves unstable.

But the imx6q fuse indicates that 1.2GHz operation is possible.
Hence, remove the 1.2GHz operation point in the device tree.
Signed-off-by: NValentin Raevsky <valentin@compulab.co.il>
[christopher.spinrath@rwth-aachen.de: enhance commit message, adjust
 remaining operation points to match the ones in imx6q.dtsi and add
 a comment in the device tree]
Signed-off-by: NChristopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The imx6 SMP system has the same DMA memory coherency issue [1] with
pl310 L2 controller. With this shared override bit set, the customer
reports the DMA coherency issue is gone. Besides, I have tested
the performance using USB ethernet with/without this bit, it shows
no difference.

[1] http://patchwork.ozlabs.org/patch/469362/Signed-off-by: NPeter Chen <peter.chen@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

With the SION bit set a pin can be read as GPIO even though it's not muxed
as GPIO. This is useful at times. The downside however is that the signal
is not only routed to the GPIO IP but also all other IPs that can make use
of the pin. This resulted in more than one issue for me in the past. Things
like spi transfers that result in usb reenumeration or setting a GPIO to a
value that triggers an RTS irq for an UART.

This convinces me that the SION bit does more harm than good and so all
SION bits are removed that are not known to be needed.

Note that this has no influence on GPIOs under Linux as the gpio-mxc
driver just reports the level the pin is driven to for outputs and not
the level as seen on the pin.

If this commit introduces a regression for you, please report which SION
bit is essential for your setup.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add "dis_rxdet_inp3_quirk" boolean property to USB3 node. This property
is used to disable rx detection in P3 PHY mode.
Signed-off-by: NRajesh Bhagat <rajesh.bhagat@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The PCI reset GPIO is active low, so represent it with the
GPIO_ACTIVE_LOW flag.

Even though the imx6 PCI driver will not take the polarity into account
in this case, it is better to provide a correct description in device-tree.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

GPLv2-only devicetrees make reuse difficult for software components
licensed under a different license. In particular, the Utilite Pro
devicetree file (which includes imx6q-cm-fx6.dts) is already dual
licensed under GPLv2/X11.

Hence, relicense imx6q-cm-fx6.dts under GPLv2/X11 dual license.
Signed-off-by: NChristopher Spinrath <christopher.spinrath@rwth-aachen.de>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The CompuLab Utilite Pro is a miniature fanless desktop pc based on
the i.MX6 Quad powered cm-fx6 module. It features two serial ports,
USB OTG, 4x USB, analog audio and S/PDIF, 2x Gb Ethernet, HDMI and
DVI ports, an on-board 32GB SSD, a mmc slot, and on-board wifi/bt.

Add initial support for it including USB, Ethernet (both ports), sata
and HDMI support.
Signed-off-by: NChristopher Spinrath <christopher.spinrath@rwth-aachen.de>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The cm-fx6 module has an on-board spi-flash chip for its firmware, an
eeprom (containing e.g. the mac address of the on-board Ethernet),
a sata port, a pcie controller, an USB hub, and an USB otg port.
Enable support for them. In addition, enable syscon poweroff support.
Signed-off-by: NChristopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The imx6q-cm-fx6 iomuxc container node is not required. Remove it.
Signed-off-by: NChristopher Spinrath <christopher.spinrath@rwth-aachen.de>
Acked-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

This fixes the following dtc warning by removing the unnecessary unit:

Warning (unit_address_vs_reg): Node /matrix-keypad@0 has a unit name,
but no reg property
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
Acked-By: NLothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

This fixes the following dtc warning by removing the unnecessary unit:

Warning (unit_address_vs_reg): Node /onewire@0 has a unit name,
but no reg property
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

This patch adds the missing reg properties for the regulator nodes
in order to fix the dtc warnings.
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

This patch adds the missing reg properties for the MXS GPIO banks
in order to fix the dtc warnings.
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The Auvidea H100 is a baseboard for the SolidRun MicroSOM.
Its primary feature is a Toshiba TC358743 HDMI to CSI decoder,
allowing the board to work as HDMI passthrough and framegrabber.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add the DT property to all boards that have the hardware workaround
for erratum ERR006687 present. This allows the CPUidle driver to use
the deep idle states, even if the FEC is active.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

This node describes the DI1 port of IPU, fix the node name to reflect this.
There's currently no user of this node in mainline, so this change should
not break any supported platforms.
Signed-off-by: NJuergen Borleis <jbe@pengutronix.de>
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add support for the LCD8000-43T display and for the backlight
controlled via PWM1.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

As of commit 1006ed7e ("serial: imx: Use generic uart-has-rtscts
DT property"), the Freescale IMX UART driver recognizes the generic
"uart-has-rtscts" DT property, deprecating the vendor-specific
"fsl,uart-has-rtscts" DT property. Hence replace the latter by the
former in all DTS files.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

As of commit 182cdcb8 ("serial: mxs-auart: Use generic
uart-has-rtscts DT property"), the Freescale MXS AUART driver recognizes
the generic "uart-has-rtscts" DT property, deprecating the
vendor-specific "fsl,uart-has-rtscts" DT property. Hence replace the
latter by the former in all DTS files.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add support for this small MP3 player based on STMP3780 (rev.3).
Currently supported are both external microSD and internal SD-NAND
bridge, PWM and USB gadget.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add support for this small MP3 player based on STMP3780 (rev.4).
Currently supported is both external microSD and internal SD-NAND
bridge, PWM and USB gadget.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add 2-pin pinmux settings for AUART2.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add pinmux configuration for SSP2 port in SD mode, both for
the 4-bit and 8-bit case.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

This enables support for the CAN controller located in the FPGA.
Signed-off-by: NDamien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Enable FPGA's IRQ controller. It is in charge of dispatching interrupts
generated by IPs in the FPGA. The SoC is notified that an interrupt
occurred through a GPIO.
Signed-off-by: NDamien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add input mux for UART2 RX in DTE mode. This allows to use the pad
UART2_TX_DATA_ALT0 as UART2 RX. This particular input select seems
to be missing in current reference manuals (Rev. B), but when looking
at the tables and other UART input select registers (e.g. UART3) it
seems naturally that this input mux register also has a fourth pad
option for UART2_TX_DATA_ALT0. It has also been proven to be required
to use UART2 in DTE mode and the particular pads on the Colibri iMX7
platform.
Signed-off-by: NStefan Agner <stefan@agner.ch>
Acked-by: NFrank Li  <Frank.Li@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Pass "fsl,sai-mclk-direction-output" to the sai2 node, so that the
SAI2_MCLK can be an output.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add SAI alias entries, which makes it possibe for the SAI driver
to retrieve the port instance.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Building with W=1 option leads to several warnings like:

Warning (unit_address_vs_reg): Node /soc/aips-bus@02000000/anatop@020c8000/regulator-1p1@110 has a unit name, but no reg property

Fix them by removing the unneeded unit-addresses.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add clocks property for ocotp node.
Signed-off-by: NPeng Fan <van.freenix@gmail.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add clocks property for ocotp node.
Signed-off-by: NPeng Fan <van.freenix@gmail.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The self-test was updated to cover zero-length strings; the function
needs to be updated, too.
Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NGeorge Spelvin <linux@sciencehorizons.net>
Fixes: fcfd2fbf ("fs/namei.c: Add hashlen_string() function")
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The original name was simply hash_string(), but that conflicted with a
function with that name in drivers/base/power/trace.c, and I decided
that calling it "hashlen_" was better anyway.

But you have to do it in two places.

[ This caused build errors for architectures that don't define
  CONFIG_DCACHE_WORD_ACCESS   - Linus ]
Signed-off-by: NGeorge Spelvin <linux@sciencehorizons.net>
Reported-by: NGuenter Roeck <linux@roeck-us.net>
Fixes: fcfd2fbf ("fs/namei.c: Add hashlen_string() function")
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The HPFS filesystem used generic_show_options to produce string that is
displayed in /proc/mounts.  However, there is a problem that the options
may disappear after remount.  If we mount the filesystem with option1
and then remount it with option2, /proc/mounts should show both option1
and option2, however it only shows option2 because the whole option
string is replaced with replace_mount_options in hpfs_remount_fs.

To fix this bug, implement the hpfs_show_options function that prints
options that are currently selected.
Signed-off-by: NMikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Commit c8f33d0b ("affs: kstrdup() memory handling") checks if the
kstrdup function returns NULL due to out-of-memory condition.

However, if we are remounting a filesystem with no change to
filesystem-specific options, the parameter data is NULL.  In this case,
kstrdup returns NULL (because it was passed NULL parameter), although no
out of memory condition exists.  The mount syscall then fails with
ENOMEM.

This patch fixes the bug.  We fail with ENOMEM only if data is non-NULL.

The patch also changes the call to replace_mount_options - if we didn't
pass any filesystem-specific options, we don't call
replace_mount_options (thus we don't erase existing reported options).

Fixes: c8f33d0b ("affs: kstrdup() memory handling")
Signed-off-by: NMikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org	# v4.1+
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>