The System Power Management Interface (SPMI) is a high-speed, low-latency, bi-directional, two-wire serial bus suitable for real-time control of voltage and frequency scaled multi-core application processors and its power management of auxiliary components. SPMI obsoletes a number of legacy, custom point-to-point interfaces and provides a low pin count, high-speed control bus for up to 4 Master and 16 Slave devices. SPMI is specified by the MIPI (Mobile Industry Process Interface) Alliance [1]. Introduced in this patchset are the core SPMI bus components, as well an implementation of an SPMI controller, the "PMIC arbiter", which is used on several Qualcomm SoCs to communicate with off-chip Power Management ICs (PMICs). Notably missing from this patchset is an implementation of a spmi device/slave driver, which is still forthcoming. With this patchset in it's current state, it is possible to perform register accesses to a slave via debugfs. [1]: http://www.mipi.org/specifications/system-power-management-interface Josh Cartwright (1): spmi: document the PMIC arbiter SPMI bindings Kenneth Heitke (2): spmi: Linux driver framework for SPMI spmi: Add MSM PMIC Arbiter SPMI controller .../devicetree/bindings/spmi/spmi-pmic-arb.txt | 26 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/of/Kconfig | 6 + drivers/of/Makefile | 1 + drivers/of/of_spmi.c | 74 +++ drivers/spmi/Kconfig | 24 + drivers/spmi/Makefile | 9 + drivers/spmi/spmi-dbgfs.c | 591 +++++++++++++++++++++ drivers/spmi/spmi-dbgfs.h | 37 ++ drivers/spmi/spmi-pmic-arb.c | 499 +++++++++++++++++ drivers/spmi/spmi.c | 449 ++++++++++++++++ include/linux/mod_devicetable.h | 8 + include/linux/of_spmi.h | 37 ++ include/linux/spmi.h | 337 ++++++++++++ 15 files changed, 2101 insertions(+) create mode 100644 Documentation/devicetree/bindings/spmi/spmi-pmic-arb.txt create mode 100644 drivers/of/of_spmi.c create mode 100644 drivers/spmi/Kconfig create mode 100644 drivers/spmi/Makefile create mode 100644 drivers/spmi/spmi-dbgfs.c create mode 100644 drivers/spmi/spmi-dbgfs.h create mode 100644 drivers/spmi/spmi-pmic-arb.c create mode 100644 drivers/spmi/spmi.c create mode 100644 include/linux/of_spmi.h create mode 100644 include/linux/spmi.h -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
