Fairphone 3 (fairphone-fp3)

Features
Flashing	Works
USB Networking	Works
Internal storage	Works
SD card	Works
Battery	Broken
Screen	Works
Touchscreen	Works
Multimedia
3D Acceleration	Works
Audio	Broken
Camera	Broken
Camera Flash	Broken
Connectivity
WiFi	Works
Bluetooth	Works
GPS
NFC	Works
Modem
Calls	Partial
SMS	Works
Mobile data	Works
Miscellaneous
FDE	Works
USB OTG	Works
Sensors
Accelerometer	Broken
Magnetometer	Broken
Ambient Light	Broken
Proximity	Broken
Haptics	Works

Fairphone 3
Manufacturer	Fairphone
Name	3
Codename	fairphone-fp3
Model	FP3
Released	2019
Type	handset
Hardware
Chipset	Qualcomm Snapdragon 632 (SDM632)
CPU	4x 1.8 GHz Kryo 250 Gold + 4x 1.8 GHz Kryo 250 Silver
GPU	Adreno 506
Display	1080x2160
Storage	64 GB
Memory	4 GB
Architecture	aarch64
Software
Original software	Android
Original version	9 (Linux 4.9)
postmarketOS
Category	testing
Pre-built images	no
Mainline	yes
Unixbench Whet/Dhry score	0.0

Contributors

Maintainer(s)

Device owners

DancesWithCycles (Notes: tbd)
Joshaspinall (Notes: Booting Mainline)
Kf
Mtvec
Z3ntu

How to enter flash mode

Press Power Button and Volume Down at the same time to enter fastboot mode

To unlock bootloader go to android and to settings. in developer option unlock oem commands. Then In fastboot mode type:

fastboot oem unlock

Installation

Mainline

Follow the usual Installation guide but stop before flashing.

Download dtbo.img here. Enter fastboot mode and and flash the downloaded image to the dtbo partition:

fastboot flash dtbo dtbo.img

Install lk2nd and flash it to your device:

pmbootstrap chroot -r -- apk add lk2nd-msm8953
pmbootstrap flasher flash_lk2nd

Boot your device. Once you see the warning screen about the unlocked boot loader, press the power button twice and then immediately hold the volume down button. You should now see a flickering version of the fastboot screen. This is lk2nd's fastboot mode and you can now continue the normal flashing procedure.

Note that the boot process seems to hang without a USB cable connected.

Downstream

The normal Installation guide should work out of the box. However, if you flashed mainline before, the original dtbo.img needs to be restored. A working one can be found from the /e/ images. Unzip it and flash dtbo.img as above.

Mainlining

/proc/device-tree/model on the downstream kernel contains "MTB S3". The corresponding DTS file is arch/arm64/boot/dts/qcom/sdm450-mtp-s3-overlay.dts.

The mainline kernel used is msm8953-mainline, branch "msm8953-5.16". Note that branches of later kernel versions (e.g., 5.18) do not seem to work.

Component support table

Description	Component	Mainline kernel	Since when
Power button	pm8953 pwrkey	Working	5.16
Volume down button	pm8953 resin	Working	5.16
Volume up button	gpio-keys	Working	5.16
Internal storage	sdhc_1	Working	5.16
SD card	sdhc_2	Working	5.16
Display	hx83112b	Working	5.16
Touchscreen	hx83112b	Working	unofficial
NFC	NXP NCI
Vibration motor	pmi632 qcom,vibrator@5700		unofficial
Notification LED	pmi632 qcom,leds@d000
Charger	pmi632 qcom,qpnp-smb5
Fuel gauge	pmi632 qpnp,qg
WiFi	pronto	Working	5.16
Bluetooth	pronto	Working	5.16
FP3 front camera	S5K4H7YX
FP3 rear camera	IMX363
FP3+ front camera	S5K3P9SP
FP3+ rear camera	S5KGM1SP03-FGX9
Camera flash	pmi632 qcom,leds@d300
Audio codec	WCD9326
FP3 speaker amp	AW8898
FP3+ speaker amp	TAS2557

Touchscreen

A PR for a driver can be found here.

Vibration motor

The Android driver is copied into mainline here. It has been updated to register itself as a FF input device so feedbackd should work. You can test it like this:

fftest /dev/input/by-path/platform-200f000.spmi-platform-200f000.spmi:pmi632_3@3:qcom_vibrator@5700-event

Audio path

CPU via I2S (quinary) to AW8898/TAS2557: speaker (and echo reference back)
CPU via SLIMbus to WCD9326: microphones, headphones, etc.

GPU

Works but causes some glitches in GTK4 apps (e.g., in Phosh). A workaround seems to be to add FD_MESA_DEBUG=nobin to your environment.

Links