Hi all:
This patchset introduce a generic PWM framework driver for Loongson family.
Each PWM has one pulse width output signal and one pulse input signal to be measured.
It can be found on Loongson-2K series cpus and Loongson LS7A bridge chips.
Thanks.
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V4:
patch (2/2):
- Rebase on pwm/for-next;
- Addressed Uwe's review comments, thanks.
- Make use of devm_pwmchip_alloc() function;
- Add Limitations description;
- Add LOONGSON_ prefix for Loongson pwm register defines;
- Keep regs written only once;
- Rewrite duty/period calculation;
- Add dev_err_probe() in .probe();
- Put the parameters used by PM into a separate
structure(pwm_loongson_suspend_store);
- Fix some code style.
Link to V3:
https://lore.kernel.org/linux-pwm/cover.1713164810.git.zhoubinbin@xxxxxxxxxxx/
V3:
patch (1/2):
- Add Reviewed-by tag from Krzysztof, thanks.
patch (2/2):
- Several code stlye adjustments, such as line breaks.
Link to V2:
https://lore.kernel.org/all/cover.1712732719.git.zhoubinbin@xxxxxxxxxxx/
v2:
- Remove the dts-related patches and update dts at once after all
relevant drivers are complete.
patch (1/2):
- The dt-binding filename should match compatible, rename it as
loongson,ls7a-pwm.yaml;
- Update binding description;
- Add description for each pwm cell;
- Drop '#pwm-cells' from required, for pwm.yaml makes it required already.
Link to v1:
https://lore.kernel.org/linux-pwm/cover.1711953223.git.zhoubinbin@xxxxxxxxxxx/
Binbin Zhou (2):
dt-bindings: pwm: Add Loongson PWM controller
pwm: Add Loongson PWM controller support
.../bindings/pwm/loongson,ls7a-pwm.yaml | 66 ++++
MAINTAINERS | 7 +
drivers/pwm/Kconfig | 12 +
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-loongson.c | 295 ++++++++++++++++++
5 files changed, 381 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/loongson,ls7a-pwm.yaml
create mode 100644 drivers/pwm/pwm-loongson.c
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2.43.0
