This series adds a driver model implementation. It is taken from the driver model code developed by:
Marek Vasut marex@denx.de Pavel Herrmann morpheus.ibis@gmail.com Viktor Křivák viktor.krivak@gmail.com Tomas Hlavacek tmshlvck@gmail.com
Please see doc/driver-model/README.txt for details of how to run this and what to look for. The old driver model documentation is removed.
Note: If you are reviewing this code, but don't have a lot of time, please consider starting with the 'demo' driver (patch 'dm: Add a demonstration/example driver') since it clearly shows how devices and uclasses work. Much of this series consists of test code and plumbing, so is of less interest to driver authors.
There is also a presentation on driver model at this page:
http://www.denx.de/wiki/U-Boot/MiniSummitELCE2013
You can find a test version of the code used here in branch dm9 at:
http://git.denx.de/u-boot-x86.git
(Branch dm contains the original implementation)
Changes in v9: - Move sandbox device tree file into arch/sandbox/dts - Rebase to master - Update comment about GPIO command conversion from numbers to uclass
Changes in v8: - Add new patch to fix yaffs compile error on two boards - Adjust simple driver text slightly - Rename simple_ops to shape_ops and fix a typo
Changes in v7: - Fix typo in README - Rebase to master - Update Makefile libraries to specify only the directory - Update cover letter to point to ELCE 2013 presentation, etc.
Changes in v6: - Add a test script for driver model - Add dev_get_platdata to access devices's platdata - Add dev_get_priv() to access device's private data - Add ofdata_to_pdata method to convert device tree data to platdata - Convert Makefiles to new Kconfig format - Rename platform_data to platdata - Revise and update README - Use ofdata_to_platdata feature - Use ofdata_to_platdata method to convert device tree data to platdata
Changes in v5: - Adjust patch to completely remove old driver model documentation - Change to new SPDX license headers - Correct >80col line missed last time - Fix style nit on for() loop
Changes in v4: - Change 'dm dump' command to 'dm tree' - Correct 'out.dtb' typo - Move common/dm to drivers/core - Remove duplicated .op line - device_chld_unbind() continues on error
Changes in v3: - Add a flag for tracking whether DM allocates/frees platform_data - Add function/struct comments to tests - Add new patch to build a device tree file for sandbox - Add new patch to move driver model documentation - Fix up demo command help - Rename per_device_priv_size to per_device_auto_alloc_size, etc. - Tidy up commenting of functions and structures - Tidy up comments/documentation in GPIO module - Update GPIO support to use new struct member names - Update demo driver to use device tree - Update sandbox GPIO header file comments - Updated README.txt to cover changes since version 2
Changes in v2: - Add GPIO uclass and tests - Add U_BOOT_DEVICE to declare platform_data - Add a single include/dm.h to bring in driver model code - Add auto-probing feature for platform_data to avoid driver_bind() calls - Add automatic allocation of device-specific priv data for uclasses - Add automatic allocation of platform_data for FDT - Add automatic allocation of priv data for devices - Add device tree support in driver model - Add dm_warn() to warn about impending doom - Add integration tests for driver model - Add new header file for lists - Add new util file to hold utility functions - Add sandbox GPIO driver - Add script to run tests - Add simple unit test functions - Add test infrastructure for driver model - Add tests for core code - Allow a driver to bind to only one uclass - Allow driver_bind() to support a NULL parent - Put platform_data definitions in their own header file - Remove relocation functions - Remove unneeded arguments to uclass_bind(), uclass_unbind() - Removed pointer return values in favour of integer - Rename data structures to hopefully be clearer - Rename struct device's 'bus' to 'parent' - Standardise variable names (e.g. uclass instead of class) - Update gpio command to use driver model - Use driver_bind() in dm_init() instead of writing new code
Simon Glass (14): sandbox: Build a device tree file for sandbox Add cmd_process_error() to report and process errors yaffs: Remove private list implementation dm: Add README for driver model dm: Add base driver model support sandbox: config: Enable driver model dm: Set up driver model after relocation dm: Add basic tests dm: Add a 'dm' command for testing dm: Add a demonstration/example driver dm: Add GPIO support and tests sandbox: Convert GPIOs to use driver model dm: Enable gpio command to support driver model dm: Remove old driver model documentation
Makefile | 4 + arch/sandbox/config.mk | 2 + arch/sandbox/dts/Makefile | 11 + arch/sandbox/dts/sandbox.dts | 20 ++ arch/sandbox/include/asm/gpio.h | 14 +- board/sandbox/sandbox/sandbox.c | 7 +- common/Makefile | 1 + common/board_r.c | 33 +++ common/cmd_demo.c | 102 +++++++ common/cmd_gpio.c | 129 ++++++++- common/command.c | 10 + doc/driver-model/README.txt | 368 ++++++++++++++++++++++++++ doc/driver-model/UDM-block.txt | 278 ------------------- doc/driver-model/UDM-cores.txt | 126 --------- doc/driver-model/UDM-design.txt | 315 ---------------------- doc/driver-model/UDM-fpga.txt | 115 -------- doc/driver-model/UDM-gpio.txt | 106 -------- doc/driver-model/UDM-hwmon.txt | 118 --------- doc/driver-model/UDM-keyboard.txt | 47 ---- doc/driver-model/UDM-mmc.txt | 319 ---------------------- doc/driver-model/UDM-net.txt | 428 ------------------------------ doc/driver-model/UDM-pci.txt | 253 ------------------ doc/driver-model/UDM-pcmcia.txt | 78 ------ doc/driver-model/UDM-power.txt | 88 ------ doc/driver-model/UDM-rtc.txt | 253 ------------------ doc/driver-model/UDM-serial.txt | 155 ----------- doc/driver-model/UDM-spi.txt | 200 -------------- doc/driver-model/UDM-stdio.txt | 191 ------------- doc/driver-model/UDM-tpm.txt | 48 ---- doc/driver-model/UDM-twserial.txt | 47 ---- doc/driver-model/UDM-usb.txt | 94 ------- doc/driver-model/UDM-video.txt | 74 ------ doc/driver-model/UDM-watchdog.txt | 329 ----------------------- drivers/core/Makefile | 7 + drivers/core/device.c | 348 ++++++++++++++++++++++++ drivers/core/lists.c | 155 +++++++++++ drivers/core/root.c | 102 +++++++ drivers/core/uclass.c | 285 ++++++++++++++++++++ drivers/core/util.c | 37 +++ drivers/demo/Makefile | 9 + drivers/demo/demo-pdata.c | 47 ++++ drivers/demo/demo-shape.c | 127 +++++++++ drivers/demo/demo-simple.c | 47 ++++ drivers/demo/demo-uclass.c | 58 ++++ drivers/gpio/Makefile | 2 + drivers/gpio/gpio-uclass.c | 266 +++++++++++++++++++ drivers/gpio/sandbox.c | 217 +++++++++------ fs/yaffs2/yaffs_list.h | 126 --------- fs/yaffs2/ydirectenv.h | 2 +- include/asm-generic/global_data.h | 8 + include/asm-generic/gpio.h | 104 ++++++++ include/command.h | 9 + include/configs/sandbox.h | 9 + include/dm-demo.h | 36 +++ include/dm.h | 14 + include/dm/device-internal.h | 87 ++++++ include/dm/device.h | 159 +++++++++++ include/dm/lists.h | 39 +++ include/dm/platdata.h | 22 ++ include/dm/root.h | 53 ++++ include/dm/test.h | 167 ++++++++++++ include/dm/uclass-id.h | 28 ++ include/dm/uclass-internal.h | 85 ++++++ include/dm/uclass.h | 142 ++++++++++ include/dm/ut.h | 95 +++++++ include/dm/util.h | 29 ++ test/dm/.gitignore | 1 + test/dm/Makefile | 18 ++ test/dm/cmd_dm.c | 133 ++++++++++ test/dm/core.c | 544 ++++++++++++++++++++++++++++++++++++++ test/dm/gpio.c | 111 ++++++++ test/dm/test-dm.sh | 7 + test/dm/test-driver.c | 146 ++++++++++ test/dm/test-fdt.c | 144 ++++++++++ test/dm/test-main.c | 107 ++++++++ test/dm/test-uclass.c | 104 ++++++++ test/dm/test.dts | 59 +++++ test/dm/ut.c | 33 +++ 78 files changed, 4801 insertions(+), 3890 deletions(-) create mode 100644 arch/sandbox/dts/Makefile create mode 100644 arch/sandbox/dts/sandbox.dts create mode 100644 common/cmd_demo.c create mode 100644 doc/driver-model/README.txt delete mode 100644 doc/driver-model/UDM-block.txt delete mode 100644 doc/driver-model/UDM-cores.txt delete mode 100644 doc/driver-model/UDM-design.txt delete mode 100644 doc/driver-model/UDM-fpga.txt delete mode 100644 doc/driver-model/UDM-gpio.txt delete mode 100644 doc/driver-model/UDM-hwmon.txt delete mode 100644 doc/driver-model/UDM-keyboard.txt delete mode 100644 doc/driver-model/UDM-mmc.txt delete mode 100644 doc/driver-model/UDM-net.txt delete mode 100644 doc/driver-model/UDM-pci.txt delete mode 100644 doc/driver-model/UDM-pcmcia.txt delete mode 100644 doc/driver-model/UDM-power.txt delete mode 100644 doc/driver-model/UDM-rtc.txt delete mode 100644 doc/driver-model/UDM-serial.txt delete mode 100644 doc/driver-model/UDM-spi.txt delete mode 100644 doc/driver-model/UDM-stdio.txt delete mode 100644 doc/driver-model/UDM-tpm.txt delete mode 100644 doc/driver-model/UDM-twserial.txt delete mode 100644 doc/driver-model/UDM-usb.txt delete mode 100644 doc/driver-model/UDM-video.txt delete mode 100644 doc/driver-model/UDM-watchdog.txt create mode 100644 drivers/core/Makefile create mode 100644 drivers/core/device.c create mode 100644 drivers/core/lists.c create mode 100644 drivers/core/root.c create mode 100644 drivers/core/uclass.c create mode 100644 drivers/core/util.c create mode 100644 drivers/demo/Makefile create mode 100644 drivers/demo/demo-pdata.c create mode 100644 drivers/demo/demo-shape.c create mode 100644 drivers/demo/demo-simple.c create mode 100644 drivers/demo/demo-uclass.c create mode 100644 drivers/gpio/gpio-uclass.c delete mode 100644 fs/yaffs2/yaffs_list.h create mode 100644 include/dm-demo.h create mode 100644 include/dm.h create mode 100644 include/dm/device-internal.h create mode 100644 include/dm/device.h create mode 100644 include/dm/lists.h create mode 100644 include/dm/platdata.h create mode 100644 include/dm/root.h create mode 100644 include/dm/test.h create mode 100644 include/dm/uclass-id.h create mode 100644 include/dm/uclass-internal.h create mode 100644 include/dm/uclass.h create mode 100644 include/dm/ut.h create mode 100644 include/dm/util.h create mode 100644 test/dm/.gitignore create mode 100644 test/dm/Makefile create mode 100644 test/dm/cmd_dm.c create mode 100644 test/dm/core.c create mode 100644 test/dm/gpio.c create mode 100755 test/dm/test-dm.sh create mode 100644 test/dm/test-driver.c create mode 100644 test/dm/test-fdt.c create mode 100644 test/dm/test-main.c create mode 100644 test/dm/test-uclass.c create mode 100644 test/dm/test.dts create mode 100644 test/dm/ut.c