Now that driver model is part of U-Boot, the task of converting drivers over to it begins. GPIO is one of the easiest to convert, since it already has a sandbox driver and a uclass driver.
The Tegra GPIO driver is relatively simple since it has a linear numbering and already uses the generic GPIO framework.
Along the way some minor deficiencies were found with driver model - these are corrected in this series.
Also it was difficult to exhaustively test the new driver against the old, so a new 'iotrace' framework was created to make this easier for future driver authors.
This series has been tested on Trimslice (Tegra 20). I will try it on a beaver also.
Changes in v2: - Add a new patch for an I/O tracing feature - Add a new patch to enable iotrace for arm - Add a new patch to enable iotrace for sandbox - Add new patch to support include files for .dts files - Add new patch to bring in Tegra device tree files from linux - Update README to encourage conversion to driver model - Add new patch to use case-insensitive comparison for GPIO banks - Add new patch to add missing header files in lists and root - Add new patch to deal with const-ness of the global_data pointer - Add new patch to allow driver model tests only for sandbox - Add new patch to fix printf() strings in the 'dm' command - Split out a separate patch to enable driver model for tegra - Split out driver model changes into separate patches - Correct bugs found during testing
Simon Glass (13): Add an I/O tracing feature arm: Support iotrace feature sandbox: Support iotrace feature Makefile: Support include files for .dts files tegra: dts: Bring in GPIO bindings from linux dm: Update README to encourage conversion to driver model dm: Use case-insensitive comparison for GPIO banks dm: Add missing header files in lists and root dm: Case away the const-ness of the global_data pointer dm: Allow driver model tests only for sandbox dm: Fix printf() strings in the 'dm' command tegra: Enable driver model tegra: Convert tegra GPIO driver to use driver model
README | 28 ++ arch/arm/dts/tegra20.dtsi | 15 +- arch/arm/include/asm/arch-tegra/gpio.h | 14 +- arch/arm/include/asm/io.h | 3 + arch/sandbox/include/asm/io.h | 10 + board/nvidia/seaboard/seaboard.c | 2 +- common/Makefile | 2 + common/cmd_iotrace.c | 73 ++++ common/iotrace.c | 169 +++++++++ drivers/core/lists.c | 1 + drivers/core/root.c | 7 +- drivers/core/uclass.c | 2 +- drivers/gpio/gpio-uclass.c | 2 +- drivers/gpio/tegra_gpio.c | 393 ++++++++++++++++----- include/configs/sandbox.h | 3 + include/configs/tegra-common.h | 4 + include/dm/device-internal.h | 4 + include/dt-bindings/gpio/gpio.h | 15 + include/dt-bindings/gpio/tegra-gpio.h | 51 +++ include/dt-bindings/interrupt-controller/arm-gic.h | 22 ++ include/dt-bindings/interrupt-controller/irq.h | 19 + include/iotrace.h | 102 ++++++ scripts/Makefile.lib | 1 + test/dm/Makefile | 2 + test/dm/cmd_dm.c | 19 +- 25 files changed, 848 insertions(+), 115 deletions(-) create mode 100644 common/cmd_iotrace.c create mode 100644 common/iotrace.c create mode 100644 include/dt-bindings/gpio/gpio.h create mode 100644 include/dt-bindings/gpio/tegra-gpio.h create mode 100644 include/dt-bindings/interrupt-controller/arm-gic.h create mode 100644 include/dt-bindings/interrupt-controller/irq.h create mode 100644 include/iotrace.h