Messages in this thread | | | From | David Jander <> | Subject | [PATCH 0/2] drivers: auxdisplay: ht16k33.c: Add option to refuse claiming primary fb | Date | Wed, 30 Mar 2022 09:34:38 +0200 |
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In the case there is also a display with a frame-buffer device, the probe order of the auxdisplay fb and the main fb is not predictable, possibly leading to the situation where the holtek auxdisplay becomes /dev/fb0. This is problematic because there is currently no way to automatically rename these devices, and too much user-space software that assumes fb0 to be the main display. In such a situation, adding "holtek,refuse-primary-fb" to the DT, the auxdisplay driver returns -EPROBE_DEFER to wait for the primary fb device to get probed first.
David Jander (2): drivers: auxdisplay: ht16k33.c: Add option to refuse claiming primary fb dt-bindings: auxdisplay: holtek,ht16k33.yaml: Add holtek,refuse-primary-fb
.../devicetree/bindings/auxdisplay/holtek,ht16k33.yaml | 3 +++ drivers/auxdisplay/ht16k33.c | 8 ++++++++ 2 files changed, 11 insertions(+)
-- 2.32.0
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