On Thu, Oct 05, 2023 at 09:05:17PM +0800, Jisheng Zhang wrote: > T-HEAD SoCs such as the TH1520 contain a PWM controller used to > control the LCD backlight, fan and so on. Add the PWM driver support > for it. > > Since the clk part isn't mainlined, so SoC dts(i) changes are not > included in this series. However, it can be tested by using fixed-clock. > > since v2: > - collect Reviewed-by tag > - add CTRL_ prefix for THEAD_PWM_CTRL register bit macros > - use pm_runtime_resume_and_get() instead of pm_runtime_get_sync() and > check its return value. > - remove unnecessary casts > - call pm_runtime_put_sync() when pwm channel is disabled > - use devm_pm_runtime_enable() and then drop .remove() > - properly consider if pwm is programmed by bootloader or other > pre-linux env. > - simplify thead_pwm_runtime_resume() code as Uwe suggested > - bool ever_started -> u8 channel_ever_started since we have 6 channels > - use 3 for #pwm-cells > > since v1: > - update commit msg and yaml filename to address Conor's comment > - use devm_clk_get_enabled() and devm_pwmchip_add() > - implement .get_state() > - properly handle overflow > - introduce thead_pwm_from_chip() inline function > - document Limitations > - address pm_runtime_get/put pingpong comment > > > Jisheng Zhang (2): > dt-bindings: pwm: Add T-HEAD PWM controller > pwm: add T-HEAD PWM driver Hi Thierry, Uwe, Kind ping, is there any chance for this series to be merged for v6.7? Thanks > > .../bindings/pwm/thead,th1520-pwm.yaml | 44 +++ > drivers/pwm/Kconfig | 11 + > drivers/pwm/Makefile | 1 + > drivers/pwm/pwm-thead.c | 270 ++++++++++++++++++ > 4 files changed, 326 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pwm/thead,th1520-pwm.yaml > create mode 100644 drivers/pwm/pwm-thead.c > > -- > 2.40.1 >
