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This adds the driver for the PWM controller found in the Amlogic SoCs. This PWM is only a set of Gates, Dividers and Counters: PWM output is achieved by calculating a clock that permits calculating two periods (low and high). The counter then has to be set to switch after N cycles for the first half period. The hardware has no "polarity" setting. This driver reverses the period cycles (the low length is inverted with the high length) for PWM_POLARITY_INVERSED. Disabling the PWM stops the output immediately (without waiting for the current period to complete first). Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> |
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| .. | ||
| exynos_pwm.c | ||
| Kconfig | ||
| Makefile | ||
| pwm-imx-util.c | ||
| pwm-imx-util.h | ||
| pwm-imx.c | ||
| pwm-meson.c | ||
| pwm-mtk.c | ||
| pwm-sifive.c | ||
| pwm-uclass.c | ||
| rk_pwm.c | ||
| sandbox_pwm.c | ||
| sunxi_pwm.c | ||
| tegra_pwm.c | ||