pwm: omap: Add PWM support using dual-mode timers
cover pwm: omap: Add PWM support using dual-mode timers
This patch is based on an earlier patch by NeilBrown which is based on a older patch from Grant Erickson which provided PWM devices using the 'legacy' interface.
The pwm driver was renamed to not be confused with the OMAP4 PWM dedicated hardware and was cleaned with the review from Thierry Reding.
The first patch introduces a way to select to dmtimer clock source via a clocks binding and a dedicated function wit the legacy fallback.
In order to prepare for the future form of the dmtimer (clksource or whatever) the first patch introduces the PWM driver with all the dmtimer calls into a platform data structure.
The structure is then filled in plat-omap and added as auxdata for the ti,pwm-dmtimer-omap compatible nodes.
Neil Armstrong (3):
arm: plat-omap: dmtimer: Add clock source from DT
pwm: Add PWM driver for OMAP using dual-mode timers
arm: plat-omap: Add PWM dmtimer platforma data quirks
.../devicetree/bindings/pwm/pwm-omap-dmtimer.txt | 18 ++ arch/arm/mach-omap2/pdata-quirks.c | 23 ++ arch/arm/plat-omap/dmtimer.c | 32 +- drivers/pwm/Kconfig | 9 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-omap-dmtimer.c | 322 +++++++++++++++++++++ include/linux/platform_data/pwm_omap_dmtimer.h | 69 +++++ 7 files changed, 472 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-omap-dmtimer.txt create mode 100644 drivers/pwm/pwm-omap-dmtimer.c create mode 100644 include/linux/platform_data/pwm_omap_dmtimer.h
Signature · 1 line
1.9.1
Quoted 27 lines · Neil Armstrong
This patch is based on an earlier patch by NeilBrown which is based on a older patch from Grant Erickson which provided PWM devices using the 'legacy' interface.
The pwm driver was renamed to not be confused with the OMAP4 PWM dedicated hardware and was cleaned with the review from Thierry Reding.
The first patch introduces a way to select to dmtimer clock source via a clocks binding and a dedicated function wit the legacy fallback.
In order to prepare for the future form of the dmtimer (clksource or whatever) the first patch introduces the PWM driver with all the dmtimer calls into a platform data structure.
The structure is then filled in plat-omap and added as auxdata for the ti,pwm-dmtimer-omap compatible nodes.
Cc Grant Erickson <[email protected]>Cc NeilBrown <[email protected]>Cc Joachim Eastwood <[email protected]>Suggested-by Tony Lindgren <[email protected]>Neil Armstrong (3):
arm: plat-omap: dmtimer: Add clock source from DT
pwm: Add PWM driver for OMAP using dual-mode timers
arm: plat-omap: Add PWM dmtimer platforma data quirks
Quoted 12 lines
.../devicetree/bindings/pwm/pwm-omap-dmtimer.txt | 18 ++ arch/arm/mach-omap2/pdata-quirks.c | 23 ++ arch/arm/plat-omap/dmtimer.c | 32 +- drivers/pwm/Kconfig | 9 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-omap-dmtimer.c | 322 +++++++++++++++++++++ include/linux/platform_data/pwm_omap_dmtimer.h | 69 +++++ 7 files changed, 472 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-omap-dmtimer.txt create mode 100644 drivers/pwm/pwm-omap-dmtimer.c create mode 100644 include/linux/platform_data/pwm_omap_dmtimer.h
Thanks for much for doing this!
I haven't looked and wont have a chance for a least a couple of weeks, but I'm very encouraged that someone is pursuing it.
Thanks,
NeilBrown
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