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Date: Wed, 26 Dec 2018 15:53:08 +0800 Message-Id: <20181226075330.82462-1-pihsun@chromium.org> X-Mailer: git-send-email 2.20.1.415.g653613c723-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181225_235404_849972_EF7E87ED X-CRM114-Status: GOOD ( 11.89 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Nicolas Boichat , Erin Lo , "open list:REMOTE PROCESSOR REMOTEPROC SUBSYSTEM" , open list , "moderated list:ARM/Mediatek SoC support" , Pi-Hsun Shih , Eddie Huang , "moderated list:ARM/Mediatek SoC support" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP 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