Re: [PATCH v2 0/9] Support TI LMU devices

[Milo Kim]

Hi Lee,

On 11/26/2015 03:56 PM, Milo Kim wrote:
> TI Lighting Management Unit drivers support lighting devices below.
>
>           Enable pin  Backlight  HW fault monitoring  LEDs   Regulators
>           ----------  ---------  -------------------  ----  ------------
> LM3532       o           o               x            x         x
> LM3631       o           o               x            x    5 regulators
> LM3632       o           o               x            x    3 regulators
> LM3633       o           o               o            o         x
> LM3695       o           o               x            x         x
> LM3697       o           o               o            x         x
>
> This patch-set consists of several parts below.
>
>    DT bindings        : Binding information for each module
>    LMU MFD            : Device registration and HW enable pin control
>    LMU fault monitor  : HW fault monitoring for open and short circuit
>    LMU backlight      : Consolidated LMU backlight driver
>    LM3633 LED         : LED subsystem and dimming pattern generation
>                         supported
>    LM363X regulator   : LM3631 and LM3632 regulator driver for the
>                         display bias
>
> Updates from v1
> ---------------
>    * DT bindings
>      mfd       : Describe complete DT properties.
>      backlight : Move backlight properties into leds/backlight/.
>                  Use common LED properties like 'led-sources' and 'label'.
>      hwmon     : LMU fault monitoring driver is not HWMON any more.
>                  So related properties are moved into 'ti-lmu' binding.
>      leds      : Use LED common properties like 'led-sources' and 'label'.
>
>    * MFD
>      Remove LMU helpers for I2C register access. Each driver uses regmap
>      helpers instead.
>
>    * LMU fault monitoring driver
>      In v1, it was HWMON driver but HWMON subsystem maintainer suggested
>      moving it into MFD because it has no sensor data like temperature or
>      voltage. Device attributes were replaced with debugfs files because
>      monitoring should be processed for debug purpose only.
>
>    * Backlight
>      Six separate driver code was consolidated.
>      Driver control code is implemented in 'ti-lmu-backlight-core.c'.
>      Device specific data is defined in 'ti-lmu-backlight-data.c'.
>      194 lines are saved in v2. The text segment is decreased by removing
>      duplicate instructions.
>
>      Lines of code:
>        v1: 1420 (8 files)
>        v2: 1226 (3 files)
>
>      Size:
>        v1:
>        text  data  bss  filename
>       12202   720   40  drivers/video/backlight/built-in.o
>        v2:
>        text  data  bss  filename
>        6883   712   41  drivers/video/backlight/built-in.o
>
>    * LED
>      Use single device attribute for LED dimming operation.
>      Max brightness is determined by DT property, 'led-max-microamp'.
>      Remove brightness workqueue.
>
>    * Regulator
>      Use 'of_match' in regulator_desc instead of calling of_regulator_match.
>      Remove unnecessary OF device ID because MFD core registers a platform
>      device based on the compatible string.
>
> Milo Kim (9):
>    Documentation: dt-bindings: mfd: add TI LMU device binding information
>    Documentation: dt-bindings: leds: backlight: add TI LMU backlight
>      binding information
>    Documentation: dt-bindings: leds: add LM3633 LED binding information
>    Documentation: dt-bindings: regulator: add LM363x regulator binding
>      information
>    mfd: add TI LMU driver
>    mfd: add TI LMU hardware fault monitoring driver
>    backlight: add TI LMU backlight driver

For patch 5,6 and 7,
I'd like to get some feedback. Thanks!

>    leds: add LM3633 driver
>    regulator: add LM363X driver
>
>   .../ABI/testing/debugfs-ti-lmu-fault-monitor       |  32 +
>   Documentation/ABI/testing/sysfs-class-led-lm3633   |  97 +++
>   .../bindings/leds/backlight/ti-lmu-backlight.txt   |  65 ++
>   .../devicetree/bindings/leds/leds-lm3633.txt       |  24 +
>   Documentation/devicetree/bindings/mfd/ti-lmu.txt   | 243 ++++++
>   .../bindings/regulator/lm363x-regulator.txt        |  34 +
>   drivers/leds/Kconfig                               |  10 +
>   drivers/leds/Makefile                              |   1 +
>   drivers/leds/leds-lm3633.c                         | 840 +++++++++++++++++++++
>   drivers/mfd/Kconfig                                |  22 +
>   drivers/mfd/Makefile                               |   3 +
>   drivers/mfd/ti-lmu-fault-monitor.c                 | 405 ++++++++++
>   drivers/mfd/ti-lmu.c                               | 259 +++++++
>   drivers/regulator/Kconfig                          |   9 +
>   drivers/regulator/Makefile                         |   1 +
>   drivers/regulator/lm363x-regulator.c               | 309 ++++++++
>   drivers/video/backlight/Kconfig                    |   7 +
>   drivers/video/backlight/Makefile                   |   3 +
>   drivers/video/backlight/ti-lmu-backlight-core.c    | 649 ++++++++++++++++
>   drivers/video/backlight/ti-lmu-backlight-data.c    | 287 +++++++
>   include/linux/mfd/ti-lmu-backlight.h               | 290 +++++++
>   include/linux/mfd/ti-lmu-register.h                | 280 +++++++
>   include/linux/mfd/ti-lmu.h                         |  87 +++
>   23 files changed, 3957 insertions(+)
>   create mode 100644 Documentation/ABI/testing/debugfs-ti-lmu-fault-monitor
>   create mode 100644 Documentation/ABI/testing/sysfs-class-led-lm3633
>   create mode 100644 Documentation/devicetree/bindings/leds/backlight/ti-lmu-backlight.txt
>   create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3633.txt
>   create mode 100644 Documentation/devicetree/bindings/mfd/ti-lmu.txt
>   create mode 100644 Documentation/devicetree/bindings/regulator/lm363x-regulator.txt
>   create mode 100644 drivers/leds/leds-lm3633.c
>   create mode 100644 drivers/mfd/ti-lmu-fault-monitor.c
>   create mode 100644 drivers/mfd/ti-lmu.c
>   create mode 100644 drivers/regulator/lm363x-regulator.c
>   create mode 100644 drivers/video/backlight/ti-lmu-backlight-core.c
>   create mode 100644 drivers/video/backlight/ti-lmu-backlight-data.c
>   create mode 100644 include/linux/mfd/ti-lmu-backlight.h
>   create mode 100644 include/linux/mfd/ti-lmu-register.h
>   create mode 100644 include/linux/mfd/ti-lmu.h

Best regards,
Milo
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