Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753837AbaBCXJA (ORCPT ); Mon, 3 Feb 2014 18:09:00 -0500 Received: from smtp.codeaurora.org ([198.145.11.231]:46471 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752464AbaBCXI4 (ORCPT ); Mon, 3 Feb 2014 18:08:56 -0500 From: Josh Cartwright To: Greg Kroah-Hartman , linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Sagar Dharia , Gilad Avidov , Michael Bohan Subject: [PATCH v5 0/6] Add support for the System Power Management Interface (SPMI) Date: Mon, 3 Feb 2014 17:05:32 -0600 Message-Id: <1391468739-20987-1-git-send-email-joshc@codeaurora.org> X-Mailer: git-send-email 1.8.4.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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]. This patchset is intended both to provide a core implementation of SPMI and also to provide a controller driver implementation. - Patches 1-2 implement the SPMI core functionality and provide basic DT binding documentation - Patches 3-5 provide an implementation of an SPMI controller, the Qualcomm SPMI PMIC Arbiter, currently used on the 8x74 SoCs. - Patch 6 rounds out regmap support for SPMI Changes from v4[2]: - Fixed a few minor error-handling bugs found with further testing - Addressed Courtney Cavin's feedback regarding device tree bindings - Reworked Kconfig options a bit (allow for building PMIC arb when COMPILE_TEST=y) Changes from v3[3]: - Dropped the pm8x41 PMIC driver and pm8xxx-rtc changes as part of this patchset. (will be sent out separately) - Rebased on v3.13-rc2 - Move to simple_ida_* for controller ID allocation - Addressed documentation fixes and nits - Provide pm_runtime implementation, which leverages SPMI's SLEEP and WAKEUP commands - Address spmi_controller object lifetime issues Changes from v2[4]: - Dropped RFC. - Add basic regmap support at Mark Brown's suggestion - Drop debugfs interface. Debugging SPMI accesses can happen via the regmap debugfs interface if necessary. - Add second address-cell in SPMI generic device tree binding, encoding the address type (suggestion by Stephen Warren) - Implement interrupt handling functionality within the PMIC Arbiter driver - Provide basic MFD driver for the PMIC8x41 PMICs, demonstrating SPMI regmap client use - Adapt existing pm8xxx-rtc driver to work as a child of the PM8x41 mfd device Changes from v1[5]: - Adopted patch (1/5) to #define for_each_available_node() shim in the !CONFIG_OF case - Moved device tree logic out of drivers/of and into spmi.c core (this mirrors what SPI is doing, and what i2c will soon be doing) - Move of_spmi_add_devices() call into spmi_device_add(), so drivers don't have to call it explicitly - Unconditionally build in debugfs code (rely on the underlying CONFIG_DEBUG_FS switch to throw unused code away) - Change pr_* print functions to their dev_* equivalents - Fix copy_{to,from}_user error handling - Renamed "board_lock" to "ctrl_idr_lock" to better describe it's purpose - Rework device object lifetime management - Rename PMIC arb binding document, add description of PMIC arb - Add generic SPMI device tree bindings [1]: http://www.mipi.org/specifications/system-power-management-interface [2]: http://lkml.kernel.org/r/cover.1389738151.git.joshc@codeaurora.org [3]: http://lkml.kernel.org/r/cover.1382985169.git.joshc@codeaurora.org [4]: http://lkml.kernel.org/r/cover.1377202730.git.joshc@codeaurora.org [5]: http://lkml.kernel.org/r/cover.1376596224.git.joshc@codeaurora.org Josh Cartwright (4): spmi: add generic SPMI controller binding documentation spmi: pmic_arb: add support for interrupt handling spmi: document the PMIC arbiter SPMI bindings regmap: spmi: support base and extended register spaces Kenneth Heitke (2): spmi: Linux driver framework for SPMI spmi: Add MSM PMIC Arbiter SPMI controller .../bindings/spmi/qcom,spmi-pmic-arb.txt | 60 ++ Documentation/devicetree/bindings/spmi/spmi.txt | 41 ++ drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/base/regmap/regmap-spmi.c | 228 +++++- drivers/spmi/Kconfig | 24 + drivers/spmi/Makefile | 6 + drivers/spmi/spmi-pmic-arb.c | 778 +++++++++++++++++++++ drivers/spmi/spmi.c | 609 ++++++++++++++++ include/dt-bindings/spmi/spmi.h | 18 + include/linux/mod_devicetable.h | 8 + include/linux/regmap.h | 12 +- include/linux/spmi.h | 191 +++++ 13 files changed, 1943 insertions(+), 35 deletions(-) create mode 100644 Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt create mode 100644 Documentation/devicetree/bindings/spmi/spmi.txt create mode 100644 drivers/spmi/Kconfig create mode 100644 drivers/spmi/Makefile create mode 100644 drivers/spmi/spmi-pmic-arb.c create mode 100644 drivers/spmi/spmi.c create mode 100644 include/dt-bindings/spmi/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-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/