RFC pwm: omap: Add PWM support using dual-mode timers
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- v2 RFC Latest3 patches 0 repliesNew
- v1 RFC3 patches 4 repliesSuperseded
Patches in v2 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | arm: plat-omap: dmtimer: Add clock source from DTarch/ | +30 | 0 replies | |
| 2/3 | pwm: Add PWM driver for OMAP using dual-mode timersDocumentation/ drivers/ drivers/ +2 more | +419 | 0 replies | |
| 3/3 | arm: plat-omap: Add PWM dmtimer platform data quirksarch/ | +23 | 0 replies |
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Cover letter [RFC PATCH v2 0/3] 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), and less rely on specific bindings 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.
v2: fix dmtimer of clock handling, fix binding doc example
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 platform data quirks
.../devicetree/bindings/pwm/pwm-omap-dmtimer.txt | 18 ++ arch/arm/mach-omap2/pdata-quirks.c | 23 ++ arch/arm/plat-omap/dmtimer.c | 31 +- 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(+), 1 deletion(-) 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
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