Add si4713 node to the N900 device tree file.
Signed-off-by: NSebastian Reichel <sre@kernel.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The GPMC binding is obviously very confusing as the values
are all over the place. People seem to confuse the GPMC partition
size for the chip select, and the device IO size within the GPMC
partition easily.

The ranges entry contains the GPMC partition size. And the
reg entry contains the size of the IO registers of the
device connected to the GPMC.

Let's fix the issue according to the following table:

Device          GPMC partition size     Device IO size
connected       in the ranges entry     in the reg entry

NAND            0x01000000 (16MB)       4
16550           0x01000000 (16MB)       8
smc91x          0x01000000 (16MB)       0xf
smc911x         0x01000000 (16MB)       0xff
OneNAND         0x01000000 (16MB)       0x20000 (128KB)
16MB NOR        0x01000000 (16MB)       0x01000000 (16MB)
32MB NOR        0x02000000 (32MB)       0x02000000 (32MB)
64MB NOR        0x04000000 (64MB)       0x04000000 (64MB)
128MB NOR       0x08000000 (128MB)      0x08000000 (128MB)
256MB NOR       0x10000000 (256MB)      0x10000000 (256MB)

Let's also add comments to the fixed entries while at it.
Acked-by: NRoger Quadros <rogerq@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Apparently some versions of nolo don't mux the all the necessary GPMC
pins for the smc91x probe to work properly. Let's fix this issue
by adding mux support for GPMC to the kernel.

Note that GPMC clk needs input enabled for OnenNAND to work.

Cc: Kevin Hilman <khilman@kernel.org>
Cc: Roger Quadros <rogerq@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

I added smc91x support but turns out we currently do not set the
smc91x timings in gpmc.c but rely on the bootloader timings. This
produces the following error unless the smc91x GPMC timings are
initialized by the bootloader:

Unhandled fault: external abort on non-linefetch (0x1008) at 0xd080630e
...
[<c04067fc>] (smc_drv_probe) from [<c038e9c4>] (platform_drv_probe+0x2c/0x5c)
[<c038e9c4>] (platform_drv_probe) from [<c038d450>] (driver_probe_device+0x104/0x22c)
[<c038d450>] (driver_probe_device) from [<c038d60c>] (__driver_attach+0x94/0x98)
[<c038d60c>] (__driver_attach) from [<c038bc3c>] (bus_for_each_dev+0x54/0x88)
[<c038bc3c>] (bus_for_each_dev) from [<c038cc3c>] (bus_add_driver+0xd8/0x1d8)
[<c038cc3c>] (bus_add_driver) from [<c038dd74>] (driver_register+0x78/0xf4)
[<c038dd74>] (driver_register) from [<c0008924>] (do_one_initcall+0x80/0x1c0)
[<c0008924>] (do_one_initcall) from [<c0852d9c>] (kernel_init_freeable+0x1b8/0x28c)
[<c0852d9c>] (kernel_init_freeable) from [<c05ce86c>] (kernel_init+0x8/0xec)
[<c05ce86c>] (kernel_init) from [<c000e728>] (ret_from_fork+0x14/0x2c)

Let's fix the issue by disabling the smc91x module for now until we
have sorted out the issues in gpmc.c.
Reported-by: NKevin Hilman <khilman@linaro.org>
Tested-by: NKevin Hilman <khilman@linaro.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

As we have support for this in board-rx51-peripherals.c, let's
add it to the .dts files too.

Note that the reset GPIO will eventually go to the driver.
For now let's just pull it down and skip any further reset
in case the bootloader has configured the MAC address so
NFSroot works.

Also note that after 3430-sdp are using proper GPMC timings
we can remove the tests for smsc,lan91c94 in gpmc.c.
Signed-off-by: NTony Lindgren <tony@atomide.com>

There are external pulls on these lines and enabling the
internal pulls can cause issue. This is because the internal
pulls are parallel with the external pulls. So let's clear
the internal I2C pulls.
Signed-off-by: NTony Lindgren <tony@atomide.com>

The quite-recently-added analog-tv-connector bindings say that the
compatible string for composite video connector is
"composite-connector". That string is also used in the omap3-n900.dts
file. However, the connector driver uses "composite-video-connector", so
this has never worked.

While changing the driver's compatible string to "composite-connector"
would be safer, as published DT bindings should not be changed, I'd
rather fix the bindings in this case for two reasons:

* composite-connector is a bit too generic name, as it doesn't even hint
  at video.
* it's clear that this has never worked, which means no one has used
  those bindings, which should make it safe to change this.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>

Commit 43fef47f (mfd: twl4030-power: Add a configuration to turn
off oscillator during off-idle) added support for configuring the PMIC
to cut off resources during deeper idle states to save power.

This however caused regression for n900 display power that needed the
PMIC configuration to be disabled with commit d937678a (ARM: dts:
Revert enabling of twl configuration for n900).

Turns out the root cause of the problem is that we must use
TWL4030_RESCONFIG_UNDEF instead of DEV_GRP_NULL to avoid disabling
regulators that may have been enabled before the init function
for twl4030-power.c runs. With TWL4030_RESCONFIG_UNDEF we let the
regulator framework control the regulators like it should. Here we
need to only configure the sys_clken and sys_off_mode triggers for
the regulators that cannot be done by the regulator framework as
it's not running at that point.

This allows us to enable the PMIC configuration for n900.

Fixes: 43fef47f (mfd: twl4030-power: Add a configuration to turn off oscillator during off-idle)

Cc: stable@vger.kernel.org # v3.16
Signed-off-by: NTony Lindgren <tony@atomide.com>
Tested-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Commit 9188883f (ARM: dts: Enable twl4030 off-idle configuration
for selected omaps) allowed n900 to cut off core voltages during
off-idle. This however caused a regression where twl regulator
vaux1 was not getting enabled for the LCD panel as we are not
requesting it for the panel.

Turns out quite a few devices on n900 are using vaux1, and we need
to either stop idling it, or add proper regulator_get calls for all
users. But until we have a proper solution implemented and tested,
let's just disable the twl off-idle configuration for now for n900.
Reported-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Fixes: 9188883f (ARM: dts: Enable twl4030 off-idle configuration for selected omaps)
Signed-off-by: NTony Lindgren <tony@atomide.com>

N900 now seems to shut down the external oscillator when hitting
off-idle.

And Beagle XM seems to have OSC_EN pin connected to allow shutting
down the oscillator looking at the schematics. The oscillator
output is cut off in off-idle and you can monitor it from R56 on
the bottom side of the board near the power jack. Note that for
beagle we need to also enable the UART wake-up event, the others
have that enabled in earlier patches.

OMAP37XX EVM (TMDSEVM3730) does not seem to have twl4030 clken
pin connected, so there is no point trying to enable shutting
down of the oscillator on it for the extra latency it adds.
Signed-off-by: NTony Lindgren <tony@atomide.com>

This adds support for the tsc2005 touchscreen
to the Nokia N900 DTS file.
Signed-off-by: NSebastian Reichel <sre@kernel.org>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Add modem device tree data to Nokia N900's DTS file.
Signed-off-by: NSebastian Reichel <sre@kernel.org>
Reviewed-by: NPavel Machek <pavel@ucw.cz>
Tested-By: NIvaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add SSI device tree data for OMAP3 and Nokia N900.
Signed-off-by: NSebastian Reichel <sre@kernel.org>
Reviewed-by: NPavel Machek <pavel@ucw.cz>
Tested-By: NIvaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

On N900 there are nice LEDs that show the state of the
sys_clkreq and sys_off_mode pins.

These LEDs go low when the system enters deeper idle
states. The left LED shows the state of the sys_clkreq
pin, and goes off during retention idle. The right LED
shows the state of sys_off_mode pin and both go off
during off idle.

As N900 is a battery operated device, these LEDs should
be off most of the time. So let's enable them by default
so we can make sure the system is mostly idle.

This allows the maintainers to also immediately test
patches for PM regressions by looking at the LEDs,
which certainly makes my life easier.

The LED can naturally be disabled during runtime with:

# echo none > /sys/class/leds/debug::sleep/trigger

Note that we don't currently have support for omap3
errata 1.158 that remuxes GPIO pins to INPUT_PULLUP |
MUX_MODE7 for the duration of idle. This means that the
GPIO pins set high will go down during off idle. In this
case it does not matter as the sys_off_mode goes down
too, but there's still a slim chance of false off idle
LED signals. If in doubt, false LED signals can be
verified by the sys_off_mode or vdd_core values.

Also note that to allow the UARTs to autoidle, the
following needs to be run on N900 to enable off idle:

#!/bin/sh
uarts=$(find /sys/class/tty/ttyO*/device/power/ -type d)
for uart in $uarts; do
	echo 3000 > $uart/autosuspend_delay_ms
done

uarts=$(find /sys/class/tty/ttyO*/power/ -type d)
for uart in $uarts; do
	echo enabled > $uart/wakeup
	echo auto > $uart/control
done

echo 1 > /sys/kernel/debug/pm_debug/enable_off_mode

For retention idle, change the above to set 0 to
enable_off_mode.

Also note that without the twl4030 PM scripts the actual
voltage scaling won't happen for off idle so we only get
voltage scaling over I2C4 for retention idle. I'll do
some device tree patches for those also a bit later on.

Cc: Kevin Hilman <khilman@linaro.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: NAaro Koskinen <aaro.koskinen@iki.fi>
[tony@atomide.com: also make sure the LEDs get built to see PM regressions]
Signed-off-by: NTony Lindgren <tony@atomide.com>

We've had deeper idle states working on omaps for few years now,
but only in the legacy mode. When booted with device tree, the
wake-up events did not have a chance to work until commit
3e6cee17 (pinctrl: single: Add support for wake-up interrupts)
that recently got merged. In addition to that we also needed commit
79d97015 (of/irq: create interrupts-extended property) and
9ec36caf (of/irq: do irq resolution in platform_get_irq) that
are now also merged.

So let's fix the wake-up events for some selected omaps so devices
booted in device tree mode won't just hang if deeper power states
are enabled, and so systems can wake up from suspend to the serial
port event.

Note that there's no longer need to specify the wake-up bit in
the pinctrl settings, the request_irq on the wake-up pin takes
care of that.

Cc: devicetree@vger.kernel.org
Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
[tony@atomide.com: updated comments, added board LDP]
Signed-off-by: NTony Lindgren <tony@atomide.com>

Use MATRIX_KEY macro from dt-bindings/input/input.h
to make the keyboard matrix human readable.
Signed-off-by: NSebastian Reichel <sre@kernel.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

This patch adds support for the Nokia N900's sound
system.
Signed-off-by: NSebastian Reichel <sre@kernel.org>
Reviewed-by: NMark Brown <broonie@linaro.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add device tree support for the wireless chip
built into the Nokia N900.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add DT data for OMAP3 N900 board. The board has the following displays:

lcd: LCD panel connected to OMAP's SDI output
tv: analog svideo
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: NSebastian Reichel <sre@debian.org>
Acked-by: NTony Lindgren <tony@atomide.com>

This adds support for the bq24150a chip to the
Nokia N900 DTS file.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

This adds support for the isp1704 chip to the Nokia N900
DTS file.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

This adds support for the N900's headphone
amplifier to the N900 DTS file.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add support for tsl2563 light sensor to the Nokia N900.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add Keyboard Matrix information to N900's DTS file.
This patch maps the keys exactly as the original
board code.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add missing compatible property to avoid problems in the future.
Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: NNishanth Menon <nm@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Commit 7ce93f31 (ARM: OMAP2+: Fix more missing data for omap3.dtsi file)
fixed missing device tree data for omaps, but did not account for some of the
hardware modules being inaccessible for secure omaps. This causes the
following error on secure omaps:

Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa0c5048
SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W    3.13.0-rc2+ #446
task: ce057b40 ti: ce058000 task.ti: ce058000
PC is at omap_aes_dma_stop+0x24/0x3c
LR is at omap_aes_probe+0x1cc/0x584
   psr: 60000113
sp : ce059e20  ip : ce0b4ee0  fp : 00000000
r10: c0573ae8  r9 : c0749508  r8 : 00000000
r7 : ce0b4e00  r6 : 00000000  r5 : ce0b4e10  r4 : ce274890
r3 : fa0c5048  r2 : 00000048  r1 : 0000002c  r0 : ce274890
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5387d  Table: 80004019  DAC: 00000015
Process swapper/0 (pid: 1, stack limit = 0xce058248)
Stack: (0xce059e20 to 0xce05a000)
9e20: c0749508 0000a1ff 00000000 c016cd8c c06b5a06 ce2a45f0 ce2a4570 ce0b5fb0
9e40: 00000000 480c5000 480c504f c0abe4e4 00000200 00000000 00000000 00000000
9e60: ce0b4e10 ce0b4e10 c082da3c c082da3c c02b8c70 c077c610 c0749508 00000000
9e80: 00000000 c02b9e7c c02b9e64 ce0b4e10 00000000 c02b8b20 ce0b4e10 ce0b4e44
9ea0: c082da3c c02b8cd8 00000000 ce059eb8 c082da3c c02b7408 ce079edc ce0b1a34
9ec0: c082da3c c082da3c ce2a0280 00000000 c08158d8 c02b8358 c0663405 c0663405
9ee0: 00000073 c082da3c c079e4e8 c07ab3bc c0844340 c02b9334 00000000 00000006
9f00: c079e4e8 c0008920 c067f6bf c0ac7c6b 00000000 c0712e28 00000000 00000000
9f20: c0712e38 ce059f38 00000093 c0ac7c82 00000000 c0058994 00000000 c07130e8
9f40: c07127b8 00000093 00000006 00000006 00000001 00000006 00000006 c079e4e8
9f60: c07ab3bc c0844340 00000093 c0749508 c079e4f4 c0749c64 00000006 00000006
9f80: c0749508 00000000 00000000 c0517e2c 00000000 00000000 00000000 00000000
9fa0: 00000000 c0517e34 00000000 c000dfb8 00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffffffff ffffffff
(omap_aes_probe+0x1cc/0x584)
(platform_drv_probe+0x18/0x48)
(driver_probe_device+0xb0/0x200)
(__driver_attach+0x68/0x8c)
(bus_for_each_dev+0x50/0x88)
(bus_add_driver+0xcc/0x1c8)
(driver_register+0x9c/0xe0)
(do_one_initcall+0x98/0x140)
(kernel_init_freeable+0x16c/0x23c)
(kernel_init+0x8/0x100)
(ret_from_fork+0x14/0x3c)
Code: e1811002 e5932020 e590300c e0833002 (e593c000)

Let's fix the issue by adding omap34xx-hs.dtsi and omap36xx-hs.dtsi and make
n900, n9 and n950 to use them. This way we have the aes, sham and timer12
disabled for secure devices the same way legacy booting does based on the
omap34xx_gp_hwmod_ocp_ifs and omap36xx_gp_hwmod_ocp_ifs arrays in
omap_hwmod_3xxx_data.c.
Reported-by: NSebastian Reichel <sre@debian.org>
Acked-By: NSebastian Reichel <sre@debian.org>
Tested-by: NAaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Looks like we need to configure the regulators and use the pdata
quirk to make eMMC work with device tree.

It seems that mostly vaux3 is used, and only some earlier revisions
used vmmc2. This has been tested to work on devices where the
system_rev passed by the bootloader has versions 0x0010, 0x2101
and 0x2204.

Cc: devicetree@vger.kernel.org
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: NSebastian Reichel <sre@debian.org>
[tony@atomide.com: updated with pinctrl changes and comments from Sebastian]
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add support for LP5523 device.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

This patch adds support for Nokia N900 TLV320AIC3X chips.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add RX51_LCD_RESET_GPIO pin mux information to
display.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

This patch adds supports for Nokia N900 NAND memory.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add regulator names and voltage information to
the Nokia N900 DTS file.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add support for LP5523 device.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add support for Nokia N900's vibrator.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add device tree node for the GPIO keys provided by the
N900 board. This is a simple conversion of the existing
board code.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add support for external SD card slot.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add UART support to Nokia N900.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Fix the bus speed of i2c bus 2 and 3.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

Add pin muxing support for the Nokia N900 i2c controllers.
Signed-off-by: NSebastian Reichel <sre@debian.org>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>

The generic PHY framewrok expects different properties than the
old USB PHY framework. Supply those properties.

Fixes USB OTG port on GAT04 and N900 after the Generic PHY framework was
merged in greg/usb-next. [1]

[1] - https://lkml.org/lkml/2013/9/27/581Signed-off-by: NRoger Quadros <rogerq@ti.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>