On Wed, 2012-09-12 at 18:57 +0900, Alexandre Courbot wrote: > Some device drivers (panel backlights especially) need to follow precise > sequences for powering on and off, involving gpios, regulators, PWMs > with a precise powering order and delays to respect between each steps. > These sequences are board-specific, and do not belong to a particular > driver - therefore they have been performed by board-specific hook > functions to far. The sequences are not board-specific, they are device (backlight, etc.) specific. The sequences have been handled in board-specific hook functions so far because there hasn't been proper drivers for the devices. If I were to take the same panel (and backlight) you have and install it on my board, I would need the same power sequence. Tomi
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