From 26a14267aff218c60b89007fdb44ca392ba6122c Mon Sep 17 00:00:00 2001 From: Rushikesh S Kadam Date: Wed, 15 May 2019 16:08:41 +0530 Subject: platform/chrome: Add ChromeOS EC ISHTP driver This driver implements a slim layer to enable the ChromeOS EC kernel stack (cros_ec) to communicate with ChromeOS EC firmware running on the Intel Integrated Sensor Hub (ISH). The driver registers a ChromeOS EC MFD device to connect with cros_ec kernel stack (upper layer), and it registers a client with the ISH Transport Protocol bus (lower layer) to talk with the ISH firwmare. See description of the ISHTP protocol at Documentation/hid/intel-ish-hid.txt Signed-off-by: Rushikesh S Kadam Acked-by: Srinivas Pandruvada Reviewed-by: Jett Rink Tested-by: Jett Rink Signed-off-by: Enric Balletbo i Serra --- drivers/platform/chrome/Kconfig | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/platform/chrome/Kconfig') diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig index 997317d2f2b9..0b3c2b9ffd2f 100644 --- a/drivers/platform/chrome/Kconfig +++ b/drivers/platform/chrome/Kconfig @@ -71,6 +71,19 @@ config CROS_EC_RPMSG To compile this driver as a module, choose M here: the module will be called cros_ec_rpmsg. +config CROS_EC_ISHTP + tristate "ChromeOS Embedded Controller (ISHTP)" + depends on MFD_CROS_EC + depends on INTEL_ISH_HID + help + If you say Y here, you get support for talking to the ChromeOS EC + firmware running on Intel Integrated Sensor Hub (ISH), using the + ISH Transport protocol (ISH-TP). This uses a simple byte-level + protocol with a checksum. + + To compile this driver as a module, choose M here: the + module will be called cros_ec_ishtp. + config CROS_EC_SPI tristate "ChromeOS Embedded Controller (SPI)" depends on MFD_CROS_EC && SPI -- cgit v1.2.3