bigbearishappy 80a12f7fdd linux-raspberrypi: change kernel cfg of drm from y to m to fix the pwm issue #1180
When I was trying to drive a lcd(ili9881) with pwm backlight control.
I encountered with the problem in #1180.
After I check the kernel config of both raspbian OS and yocto.I find
the config of drm is different between them.
Detail of difference:
In raspbian OS, kernel conifg of drm is m while it's y in yocto.

So I change the config of drm to m in yocto too.And the pwm works fine now.

Signed-off-by: bigbearishappy <953308023@qq.com>
2023-08-03 16:34:19 +01:00
2022-04-21 21:41:38 +01:00
2021-03-24 10:07:46 +00:00

meta-raspberrypi

Yocto BSP layer for the Raspberry Pi boards - http://www.raspberrypi.org/.

Documentation Status Matrix

Build server sponsored by balena.io

Description

This is the general hardware specific BSP overlay for the RaspberryPi device.

More information can be found at: http://www.raspberrypi.org/ (Official Site)

The core BSP part of meta-raspberrypi should work with different OpenEmbedded/Yocto distributions and layer stacks, such as:

  • Distro-less (only with OE-Core).
  • Yoe Disto (Video and Camera Products).
  • Yocto/Poky (main focus of testing).

Dependencies

This layer depends on:

  • URI: git://git.yoctoproject.org/poky
    • branch: master
    • revision: HEAD

Quick Start

  1. source poky/oe-init-build-env rpi-build
  2. Add this layer to bblayers.conf and the dependencies above
  3. Set MACHINE in local.conf to one of the supported boards
  4. bitbake core-image-base
  5. Use bmaptool to copy the generated .wic.bz2 file to the SD card
  6. Boot your RPI

Quick Start with kas

  1. Install kas build tool from PyPi (sudo pip3 install kas)
  2. kas build meta-raspberrypi/kas-poky-rpi.yml
  3. Use bmaptool to copy the generated .wic.bz2 file to the SD card
  4. Boot your RPI

To adjust the build configuration with specific options (I2C, SPI, ...), simply add a section as follows:

local_conf_header:
  rpi-specific: |
    ENABLE_I2C = "1"
    RPI_EXTRA_CONFIG = "dtoverlay=pi3-disable-bt"

To configure the machine, you have to update the machine variable. And the same for the distro.

For further information, you can read more at https://kas.readthedocs.io/en/latest/index.html

Contributing

You can send patches using the GitHub pull request process or/and through the Yocto mailing list. Refer to the documentation for more information.

Maintainers

  • Andrei Gherzan <andrei at gherzan.com>
Description
Hardware specific BSP overlay for the Raspberry Pi devices
https://yoctoproject.org/
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