[PATCH 2/7] dt-bindings: pwm: Add a new binding for rockchip,rk3576-pwm

[Conor Dooley]

On Tue, Apr 08, 2025 at 02:32:14PM +0200, Nicolas Frattaroli wrote:
> The Rockchip RK3576 SoC has a newer PWM controller IP revision than
> previous Rockchip SoCs. This IP, called "PWMv4" by Rockchip, introduces
> several new features, and consequently differs in its bindings.
> 
> Instead of expanding the ever-growing rockchip-pwm binding that already
> has an if-condition, add an entirely new binding to handle this.
> 
> The "osc" clock is an optional clock available on some instances of the
> PWM controller. If present, it allows the controller to switch between
> either the "pwm" clock or the "osc" clock for deriving its PWM signal
> on a per-channel basis, through a hardware register write.
> 
> However, not all instances have this feature, and the hardware copes
> just fine without this additional clock, so it's optional.
> 
> The PWM controller also comes with an interrupt now. This interrupt is
> used to signal various conditions.
> 
> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli at collabora.com>

Reviewed-by: Conor Dooley <conor.dooley at microchip.com>
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