Messages in this thread | | | From | Charles Mirabile <> | Subject | [PATCH v8 0/6] Raspberry Pi Sense HAT driver | Date | Tue, 12 Apr 2022 16:13:37 -0400 |
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This patch series adds a set of drivers for operating the Sense HAT peripheral device. This board is an add on for the Raspberry Pi that is designed to connect using the GPIO connector and communicate via I2C.
It features: - a joystick - an 8x8 RGB LED matrix display - a whole bunch of environmental sensors with their own drivers (those are already in upstream Linux)
This is a refactor of the work of Serge Schneider, the author of a version of this driver that is currently in the Raspberry Pi downstream kernel. We modified his code to make it suitable for upstream Linux.
A couple of tests are available for the driver in the test folder in this repo: https://github.com/underground-software/sensehat.git - sensehat_joystick_test logs the input events from the joystick to the console - sensehat_display_test displays various solid colors on the LED panel. - full_sensehat_test displays a single lit cell that can be moved with the joystick. Pressing the joystick ends the program.
For more information about the Sense HAT, visit: https://www.raspberrypi.org/products/sense-hat/
Changes since v7: - Added missing error checks to sensehat-display and sensehat-joystick probe functions (allocation failure, and failure to get regmap) - Propogated potential error from regmap write out of the update display function so that an innability to connect with hardware can be detected during probe - Changed the userspace format back to individual bytes one per color channel, three per pixel. They are now arranged as rgb triples instead of the native format for the hardware. - Thanks to Miguel Ojeda for these suggestions.
Co-developed-by: Daniel Bauman <dbauman@redhat.com> Signed-off-by: Daniel Bauman <dbauman@redhat.com> Co-developed-by: Mwesigwa Guma <mguma@redhat.com> Signed-off-by: Mwesigwa Guma <mguma@redhat.com> Co-developed-by: Joel Savitz <jsavitz@redhat.com> Signed-off-by: Joel Savitz <jsavitz@redhat.com> Signed-off-by: Charles Mirabile <cmirabil@redhat.com>
Charles Mirabile (6): drivers/mfd: sensehat: Add Raspberry Pi Sense HAT to simple_mfd_i2c drivers/input/joystick: sensehat: Raspberry Pi Sense HAT joystick driver drivers/auxdisplay: sensehat: Raspberry Pi Sense HAT display driver dt-bindings: mfd: sensehat: Add Raspberry Pi Sense HAT schema MAINTAINERS: Add sensehat driver authors to MAINTAINERS DO NOT MERGE: full sensehat device tree overlay for raspberry pi 4
.../raspberrypi,sensehat-display.yaml | 27 +++ .../input/raspberrypi,sensehat-joystick.yaml | 33 +++ .../bindings/mfd/raspberrypi,sensehat.yaml | 69 ++++++ MAINTAINERS | 11 + drivers/auxdisplay/Kconfig | 8 + drivers/auxdisplay/Makefile | 1 + drivers/auxdisplay/sensehat-display.c | 205 ++++++++++++++++++ drivers/input/joystick/Kconfig | 11 + drivers/input/joystick/Makefile | 1 + drivers/input/joystick/sensehat-joystick.c | 137 ++++++++++++ drivers/mfd/simple-mfd-i2c.c | 1 + sensehat.dtbs | 54 +++++ 12 files changed, 558 insertions(+) create mode 100644 Documentation/devicetree/bindings/auxdisplay/raspberrypi,sensehat-display.yaml create mode 100644 Documentation/devicetree/bindings/input/raspberrypi,sensehat-joystick.yaml create mode 100644 Documentation/devicetree/bindings/mfd/raspberrypi,sensehat.yaml create mode 100644 drivers/auxdisplay/sensehat-display.c create mode 100644 drivers/input/joystick/sensehat-joystick.c create mode 100644 sensehat.dtbs
-- 2.31.1
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