Add support for controlling and communicating with mt8183's system
control processor (SCP), using the remoteproc & rpmsg framework.
And also add a cros_ec driver for CrOS EC host command over rpmsg.
The overall structure of the series is:
* remoteproc/mtk_scp.c: Control the start / stop of SCP (Patch 2).
* remoteproc/mtk_scp_ipi.c: Communicates to SCP using inter-processor
interrupt (IPI) and shared memory (Patch 2, 3).
* rpmsg/mtk_rpmsg.c: Wrapper to wrap the IPI communication into a rpmsg
device. Supports name service for SCP firmware to
announce channels (Patch 4).
* platform/chrome/cros_ec_rpmsg.c: Communicates with the SCP over the
rpmsg framework (like what platform/chrome/cros_ec_{i2c,spi}.c does)
(Patch 5).
Since I'm not familiar with the remoteproc / rpmsg framework, and there
are not much other custom rpmsg driver for reference, would like some
review / comments on the overall structure of the driver.
Erin Lo (2):
dt-bindings: Add a binding for Mediatek SCP
remoteproc/mediatek: add SCP support for mt8183
Pi-Hsun Shih (3):
remoteproc: move IPI interface into separate file.
rpmsg: add rpmsg support for mt8183 SCP.
mfd: cros_ec: add EC host command support using rpmsg.
.../bindings/remoteproc/mtk,scp.txt | 10 +
drivers/mfd/cros_ec_dev.c | 10 +
drivers/platform/chrome/Kconfig | 8 +
drivers/platform/chrome/Makefile | 1 +
drivers/platform/chrome/cros_ec_rpmsg.c | 164 +++++++
drivers/remoteproc/Kconfig | 9 +
drivers/remoteproc/Makefile | 1 +
drivers/remoteproc/mtk_common.h | 76 +++
drivers/remoteproc/mtk_scp.c | 441 ++++++++++++++++++
drivers/remoteproc/mtk_scp_ipi.c | 109 +++++
drivers/rpmsg/Kconfig | 5 +
drivers/rpmsg/Makefile | 1 +
drivers/rpmsg/mtk_rpmsg.c | 341 ++++++++++++++
include/linux/mfd/cros_ec.h | 1 +
include/linux/mfd/cros_ec_commands.h | 2 +
include/linux/platform_data/mtk_scp.h | 143 ++++++
include/linux/rpmsg/mtk_rpmsg.h | 34 ++
17 files changed, 1356 insertions(+)
create mode 100644 Documentation/devicetree/bindings/remoteproc/mtk,scp.txt
create mode 100644 drivers/platform/chrome/cros_ec_rpmsg.c
create mode 100644 drivers/remoteproc/mtk_common.h
create mode 100644 drivers/remoteproc/mtk_scp.c
create mode 100644 drivers/remoteproc/mtk_scp_ipi.c
create mode 100644 drivers/rpmsg/mtk_rpmsg.c
create mode 100644 include/linux/platform_data/mtk_scp.h
create mode 100644 include/linux/rpmsg/mtk_rpmsg.h
--
2.20.1.415.g653613c723-goog
