Re: [PATCH v3 0/5] DesignWare PWM improvements

From: Jarkko Nikula
Date: Wed Feb 14 2024 - 07:55:59 EST


On 2/12/24 15:02, Raag Jadav wrote:
This series implements 16 channel PWM support for Intel Elkhart Lake
along with minor cleanups for DesignWare PWM driver.

Changes since v2:
- Remove error code duplication from dev_err_probe()
- Update tags

Changes since v1:
- Drop redundant error check
- Provide dwc_pwm_init_one() to initialize one PWM instance
- Use dev_get_drvdata() instead of pci_get_drvdata()
- Use pm_sleep_ptr() instead of use pm_ptr()

Raag Jadav (5):
pwm: dwc: use pm_sleep_ptr() macro
pwm: dwc: drop redundant error check
pwm: dwc: Add 16 channel support for Intel Elkhart Lake
pwm: dwc: simplify error handling
pwm: dwc: access driver_data using dev_get_drvdata()

drivers/pwm/pwm-dwc.c | 59 ++++++++++++++++++++++++-------------------
drivers/pwm/pwm-dwc.h | 5 ++++
2 files changed, 38 insertions(+), 26 deletions(-)

I tested on Elkhart lake this patchset and it adds another 8 channel PWM instance and the PCI device continue switching between D0 and D3 power states depending is some channel enabled or all idle.

Tested-by: Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx>