On Fri, Jun 13, 2025 at 08:10:15PM +0200, Casey Connolly wrote: > Qualcomm peripherals like UART, SPI, I2C, etc are all exposed under a > common GENI Serial Engine wrapper device. Replace the stub driver we use > for this currently with a full-on misc device and implement support for > loading peripheral firmware. > > Each of the peripherals has it's own protocol-specific firmware, this is > stored on the internal storage of the device with a well-known partition > type GUID. > > To support this, GENI will bind peripherals in two stages. First the > ones that already have firmware loaded (such as the serial port) are > bound in the typical way. But devices that require firmware loading are > deferred until EVT_LAST_STAGE_INIT. At this point we can be sure that > the storage device is available, so we load the firmware and then bind > and probe the remaining children. > > Child devices are expected to determine if firmware loading is necessary > and call qcom_geni_load_firmware(). > > Since Linux currently doesn't support loading firmware (and firmware may > not be available), we probe all GENI peripherals to ensure that they > always load firmware if necessary. > > Signed-off-by: Casey Connolly <[email protected]> > --- > arch/arm/Kconfig | 1 + > drivers/misc/Kconfig | 9 +
You forgot to change the Kconfig logic from last time, it's still select'ing and not everyone has MISC enabled. -- Tom
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