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由 Douglas Anderson 提交于
It doesn't make sense to go out to the bus and read the EDID over and over again. Let's cache it and throw away the cache when we turn power off from the panel. Autosuspend means that even if there are several calls to read the EDID before we officially turn the power on then we should get good use out of this cache. Signed-off-by: NDouglas Anderson <dianders@chromium.org> Reviewed-by: NBjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: NSean Paul <seanpaul@chromium.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.18.If050957eaa85cf45b10bcf61e6f7fa61c9750ebf@changeid
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