TI's sequencer serial port (TI-SSP) is a jack-of-all-trades type of serial port
device. It has a built-in programmable execution engine that can be programmed
to operate as almost any serial bus (I2C, SPI, EasyScale, and others).
This patch series implements a driver stack that looks like the following:
+--------+
| eeprom | . . .
+--------+
+-----------+ +--------------+ +---------+
| regulator | . . . | i2c-gpio | | 1-wire | . . .
+-----------+ +--------------+ +---------+
+----------------------+ +--------------------------------+
| ssp-spi | | ssp-gpio |
+----------------------+ +--------------------------------+
+----------------------------------------------------------+
| ssp |
+----------------------------------------------------------+
Changes between v8 and v7 of this series:
- Reorder commits, removed regulator driver patch (already upstreamed)
- Renamed static function definitions to keep namespace clean (mfd, gpio)
- Removed instance pdata in mfd driver
Changes between v7 and v6 of this series:
- Workaround for iosel2 register not reading back set bits.
- Update backlight status once probe succeeds.
Changes between v6 and v5 of this series:
- Changed initcalls to module_init() across all drivers. This series now
uses a late_initcall() in the board to delay initialization of gpio and
regulator dependent devices.
Changes between v5 and v4 of this series:
- Moved drivers from misc/gpio/spi to mfd
- Removed implicit init-time iosel setup
- Minor cleanups in backlight driver
Changes between v3 and v4 of this series:
- Replaced polled wait for sequence termination with interrupt
- Improved locking within SSP driver
- Other minor cleanups
Changes between v2 and v3 of this series:
- Minor cleanups in Kconfig and Makefile ordering
Changes between v1 and v2 of this series:
- Replaced open()/close() semantics with dynamic platform_device
registration on SSP probe.
- Removed user-land interface to regulator registers
- More sensible regulator constraints
- Other minor cleanups
Cyril Chemparathy (11):
mfd: add driver for sequencer serial port
spi: add ti-ssp spi master driver
gpio: add ti-ssp gpio driver
backlight: add support for tps6116x controller
davinci: add tnetv107x ssp platform device
davinci: add ssp config for tnetv107x evm board
davinci: add spi devices on tnetv107x evm
davinci: add tnetv107x evm regulators
davinci: add tnetv107x evm ti-ssp gpio device
davinci: add tnetv107x evm backlight device
davinci: add tnetv107x evm i2c eeprom device
arch/arm/mach-davinci/board-tnetv107x-evm.c | 197 ++++++++++
arch/arm/mach-davinci/devices-tnetv107x.c | 25 ++
arch/arm/mach-davinci/include/mach/tnetv107x.h | 2 +
arch/arm/mach-davinci/tnetv107x.c | 2 +-
drivers/gpio/Kconfig | 10 +
drivers/gpio/Makefile | 1 +
drivers/gpio/ti-ssp-gpio.c | 207 ++++++++++
drivers/mfd/Kconfig | 11 +
drivers/mfd/Makefile | 1 +
drivers/mfd/ti-ssp.c | 476 ++++++++++++++++++++++++
drivers/spi/Kconfig | 10 +
drivers/spi/Makefile | 1 +
drivers/spi/ti-ssp-spi.c | 402 ++++++++++++++++++++
drivers/video/backlight/Kconfig | 7 +
drivers/video/backlight/Makefile | 2 +-
drivers/video/backlight/tps6116x.c | 299 +++++++++++++++
include/linux/mfd/ti_ssp.h | 97 +++++
17 files changed, 1748 insertions(+), 2 deletions(-)
create mode 100644 drivers/gpio/ti-ssp-gpio.c
create mode 100644 drivers/mfd/ti-ssp.c
create mode 100644 drivers/spi/ti-ssp-spi.c
create mode 100644 drivers/video/backlight/tps6116x.c
create mode 100644 include/linux/mfd/ti_ssp.h
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