3a0c991fe3
The backlight power state handling is supremely confusing. We have: - props.power, using FB_BLANK_* defines - props.fb_blank, using the same, but deprecated int favour of props.state - props.state, using the BL_CORE_* defines - and finally a bunch of backlight drivers treat brightness == 0 as off. But of course not all of them. This is way too much confusion to fix in a simple patch, but at least prevent more hilarity from spreading by removing the unused BL_CORE_* defines. I have no idea why exactly anyone would need that. Wrt the ideal state, we really just want a boolean state. The 4 power saving states that the fbdev subsystem uses are overkill in todays hw (this was only relevant for VGA and similar analog circuits like TV-out), the new drm atomic modeset api simplified even the uapi to a simple bool. And there was never a valid technical reason to have the intermediate fbdev power states for backlights (those really only can be either off or on). Cleanup motivated by Meghana's questions about all this. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Jingoo Han <jingoohan1@gmail.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> |
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| .. | ||
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| video | ||
| xen | ||