Add support for the devkit camera

See merge request !29

Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Add VIDIOC_EXPBUF ioctl which exports a buffer as a DMABUF file descriptor.
After calling VIDIOC_EXPBUF the fd field will be set by a driver. This is a
DMABUF file descriptor. The application may pass it to other DMABUF-aware
devices. See V4L2 spec for more details.
Signed-off-by: Robby Cai <robby.cai@nxp.com>

Otherwise we'd pick '-19' as device name.
Signed-off-by: Guido Günther <guido.gunther@puri.sm>

We remove the unused output/ folder and code for non i.MX8MQ SoCs to
make this easier to manage and formwardable to 4.18.
Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Signed-off-by: Guido Günther <guido.gunther@puri.sm>

This still needs the 'debug' command line option so it's safe to enable.
Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Imx8 4.18 boot reset fix

See merge request !28

Due to current spikes during boot the USB-C VBUS can get drawn down too
low causing the bq25890 to reset the board. Allow VBUS to drop a bit
further to make allowance for thses spikes.
Signed-off-by: Eric Kuzmenko <eric.kuzmenko@puri.sm>
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

The bq25890 has low voltage protection on VIN. Allow the register
to be set from the device tree.
Signed-off-by: Eric Kuzmenko <eric.kuzmenko@puri.sm>
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

NXP errata e7805 says that setting the i2c bus clock to 400 kHz violates
the SCL clock low period on the imx8mq and recommends setting 384 kHz. At
384 kHz errors were still seen with devices on i2c-0.

At 200 kHz no errors were seen.
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

librem5: Assign gpu clocks IMX8MQ_GPU_PLL_OUT as parent.

See merge request !27

Not running at 25Mhz improves performance.
Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Drop DPU related bits

See merge request !26

nwl: Don't turn off clocks and phy on screen blank

Closes #32

See merge request !25

Disable firmware user mode helpers

Closes #31

See merge request !19

Those were just removed
Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Signed-off-by: Guido Günther <guido.gunther@puri.sm>

This makes the display turn on again on unblank like

    echo 1 > /sys/class/graphics/fb0/blank ; sleep 1; echo 0 > /sys/class/graphics/fb0/blank

Closes: #32Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Imx8 4.18 fixes

See merge request !24

We don't need the imx8_som node drop it.
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

Clean out unused code segments
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

The commercial version supports 1000 MHz and 1500 MHz
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

Use the upstreamed panel driver

See merge request !23

The Kconfig variable name changed upstream
Signed-off-by: Guido Günther <guido.gunther@puri.sm>

Support Rocktech jh057n00900 5.5" 720x1440 TFT LCD panel. It is a MIPI
DSI video mode panel.

The panel seems to use a Sitronix ST7703 look alike (most of the
commands look similar to the ST7703's data sheet but use a different
number of parameters). The initial version of the DSI init sequence
(including sleeps) were provided by the vendor. Sleeps were reduced
considerably though to speed up initialization.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>

The Rocktec jh057n00900 is a 5.5" MIPI DSI video mode panel with a
720x1440 resolution and a built in backlight.
Signed-off-by: Guido Günther <agx@sigxcpu.org>

Add ROCKTECH DISPLAYS LIMITED (https://rocktech.com.hk) LCD panel
supplier.
Signed-off-by: Guido Günther <agx@sigxcpu.org>

Update the sensor settings to support the LSM9DS1 sensor. Although the
LSM9DS1 accelerometer and gyroscope are coupled together to use the same
FIFO, the magnetometer is separate and can be cleanly supported without
refactoring the existing driver.
Signed-off-by: Martin Kelly <martin@martingkelly.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Enable the proximity/ambient light sensor on the Librem5 devkit.
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

Enable the magnetometer on the Librem5 devkit
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

Enbale the gyroscope, accelerometer, magnetometer and proximity drivers
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

The VCNL4040 is almost identical to the VCNL4200 as far as register
layout goes but just need to check a different ID register location.

This does change the initialization sequence of the VCNL4200 to use word writes
instead of byte writes. The VCNL4200 says that word read and writes should be
used to access the registers but I don't have a 4200 to test with. The VCNL4040
doesn't initialize properly with the byte writes.
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

Clocks cleanup

See merge request !21

The imax8mq supports the SNVS power key. Enable it.
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

The imx8mq uses the same SNVS power key system as earlier processors
so allow it to build on imx8mq.
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>