> I haven't been following the thread, but just noticed it. Very similar > things (DT nodes for probed devices) are coming up quite a bit recently, > for example: > > Re: Where to power on the wifi device before loading the driver. > http://www.spinics.net/lists/arm-kernel/msg180368.html > > dt: rfkill-gpio: add bindings documentation > http://www.spinics.net/lists/linux-tegra/msg03977.html > > I wonder if there's any kind of infra-structure or standardized bindings > that would be useful here? Hi Stephen, For your suggestion: sdhci@78000000 { compatible = "nvidia,tegra30-sdhci", "nvidia,tegra20-sdhci"; reg = <0x78000000 0x200>; interrupts = <0 14 0x04>; sdio-device { reset-gpios = <...>; enable-gpios = <...>; }; }; I have a question, if reset-gpio or enable-gpio is not set, how bus (sd or usb) know it is a sdio device as the wifi is not powered on at the time, it will not response host's command, the hub at usb bus is the same. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
