diff options
| author | Wentong Wu <wentong.wu@intel.com> | 2023-10-09 09:33:22 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-11 12:33:37 +0300 |
| commit | acd6199f195d6de814ac4090ce0864a613b1580e (patch) | |
| tree | 9a1626c0a412157c77e4d1eb89431029eba08bec /drivers/usb/misc/Kconfig | |
| parent | efa33cd89c8acc510ed0e4dbf98fc1cf3220b9dc (diff) | |
| download | linux-acd6199f195d6de814ac4090ce0864a613b1580e.tar.xz | |
usb: Add support for Intel LJCA device
Implements the USB part of Intel USB-I2C/GPIO/SPI adapter device
named "La Jolla Cove Adapter" (LJCA).
The communication between the various LJCA module drivers and the
hardware will be muxed/demuxed by this driver. Three modules (
I2C, GPIO, and SPI) are supported currently.
Each sub-module of LJCA device is identified by type field within
the LJCA message header.
The sub-modules of LJCA can use ljca_transfer() to issue a transfer
between host and hardware. And ljca_register_event_cb is exported
to LJCA sub-module drivers for hardware event subscription.
The minimum code in ASL that covers this board is
Scope (\_SB.PCI0.DWC3.RHUB.HS01)
{
Device (GPIO)
{
Name (_ADR, Zero)
Name (_STA, 0x0F)
}
Device (I2C)
{
Name (_ADR, One)
Name (_STA, 0x0F)
}
Device (SPI)
{
Name (_ADR, 0x02)
Name (_STA, 0x0F)
}
}
Signed-off-by: Wentong Wu <wentong.wu@intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/1696833205-16716-2-git-send-email-wentong.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/misc/Kconfig')
| -rw-r--r-- | drivers/usb/misc/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig index 99b15b77dfd5..c510af7baa0d 100644 --- a/drivers/usb/misc/Kconfig +++ b/drivers/usb/misc/Kconfig @@ -165,6 +165,19 @@ config APPLE_MFI_FASTCHARGE It is safe to say M here. +config USB_LJCA + tristate "Intel La Jolla Cove Adapter support" + select AUXILIARY_BUS + depends on USB && ACPI + help + This adds support for Intel La Jolla Cove USB-I2C/SPI/GPIO + Master Adapter (LJCA). Additional drivers such as I2C_LJCA, + GPIO_LJCA and SPI_LJCA must be enabled in order to use the + functionality of the device. + + This driver can also be built as a module. If so, the module + will be called usb-ljca. + source "drivers/usb/misc/sisusbvga/Kconfig" config USB_LD |