This patch series adds the support for 1. In am33xx SoC[1], enhanced capture (eCAP) supports auxiliary PWM (APWM). This series adds the PWM driver support for the APWM feature for eCAP on AM33xx. AM335X_ECAP0_IN_PWM0_OUT is used to enable the backlight.
2. Fix build warning in ti-ehrpwm driver in dev_deb(). 3. Enable eCAP0 PWM and LCD pin muxing to support splash screen on AM335x EVM[2]. [1] AM335x TRM - https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf [2] AM335x EVM - https://www.ti.com/tool/TMDXEVM3358 per discussion on the earlier patch series, https://lore.kernel.org/all/20250319202516.3300444-1-sbell...@baylibre.com/ dropping the device tree changes in this series due to OF_UPSTREAM conflict. As we are dropping the DT patch, started with the new series instead of V2. This series doesn't contain defconfig changes since we don't want to enable LCD, splash screen and PWM support by default. Enabling splash screen and PWM support in defconfig causes u-boot crash on AM335x based beaglebone black. This will be handled in a separate patch. Sukrut Bellary (3): pwm: ti: am33xx: Enable Auxiliary PWM using eCAP pwm: ti: am33xx: Fix build warnings in dev_dbg() board: ti: am335x: Enable eCAP0 PWM and LCD pin muxing board/ti/am335x/mux.c | 47 +++++++++ drivers/pwm/Kconfig | 6 ++ drivers/pwm/Makefile | 1 + drivers/pwm/pwm-ti-ehrpwm.c | 2 +- drivers/pwm/pwm-tiecap.c | 198 ++++++++++++++++++++++++++++++++++++ 5 files changed, 253 insertions(+), 1 deletion(-) create mode 100644 drivers/pwm/pwm-tiecap.c -- 2.34.1
