change kernel cfg of drm from y to m to fix the pwm issue #1180 #1209
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Oh, it's already tested with booting out of initramfs. And it works fine. |
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Interesting. Can you please add your rationale in git log and have a format as per https://meta-raspberrypi.readthedocs.io/en/latest/contributing.html? Thanks.
bigbearishappy
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…m issue agherzan#1180 When I was trying to drive a lcd(ili9881) with pwm backlight control. I encountered with the problem in agherzan#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 <[email protected]>
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Thanks for your guidance. The git log is updated now. Please let me know if there is any further work I need to do. |
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@bigbearishappy is this issue specific to the kirkstone branch? Are you able to give it a spin on the master branch too? |
I think it's not a issue specific to kirkstone. I will have a try with master and create a PR if it's needed. |
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Please do so that we don't miss it as new versions evolve. Thanks. |
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@bigbearishappy Ping for PR for langdale, mickledore and master branches. @agherzan FYI |
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@bigbearishappy can you please push this to the branches mentioned above as MRs? |
:Release Notes: Undo kirkstone specific change: agherzan/meta-raspberrypi@80a12f7 which was not applied in langdale and newer branches, see: agherzan/meta-raspberrypi#1209 :Detailed Notes: :Testing Performed: Only build tested. :QA Notes: No change to image. :Issues Addressed: [WRQ-5430] CCC: linux-raspberrypi: include vc4 and v3d in kernel Cherry-picked-from-commit: efb98ce Cherry-picked-from-branch:
- What I did
I was trying to fix the startup problem of the LCD driver in yocto.And I find that the kernel config in yocto of drm is different
with raspbianOS.So I change it same with raspbianOS. And it works fine.
Interestingly, I also find that the PWM issue I create in #1180 was fixed.