Due to new usage scenarios, some upgrades are made to unisoc's pwm driver.
Patch 1 supports the change of channel offset on UMS9620.
Patch 2 supports more brightness levels (duty cycle) for backlight control.
Patch 3 optimizes the calculation method of duty.
Patch 4 converts dt-binding file from txt to yaml
Patch 5-6 update pwm-sprd.yaml according to patch 1 and patch 2.

Change in V2:

-Change dev_err to dev_info in PATCH 2/6.
-Add maintainer to gitconfig.

Wenhua Lin (6):
  pwm: sprd: Add support for UMS9620
  pwm: sprd: Improve the pwm backlight control function
  pwm: sprd: Optimize the calculation method of duty
  dt-bindings: pwm: sprd: Convert to YAML
  pwm: sprd: Add sprd,ums9620-pwm compatible
  dt-bindings: pwm: sprd: Add sprd,mod attribute

 .../devicetree/bindings/pwm/pwm-sprd.txt      |  40 -------
 .../devicetree/bindings/pwm/pwm-sprd.yaml     | 106 ++++++++++++++++++
 drivers/pwm/pwm-sprd.c                        |  71 ++++++++++--
 3 files changed, 165 insertions(+), 52 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/pwm/pwm-sprd.txt
 create mode 100644 Documentation/devicetree/bindings/pwm/pwm-sprd.yaml

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2.17.1