1*8bab661aSEmmanuel Vadot# SPDX-License-Identifier: GPL-2.0 2*8bab661aSEmmanuel Vadot%YAML 1.2 3*8bab661aSEmmanuel Vadot--- 4*8bab661aSEmmanuel Vadot$id: http://devicetree.org/schemas/clock/pwm-clock.yaml# 5*8bab661aSEmmanuel Vadot$schema: http://devicetree.org/meta-schemas/core.yaml# 6*8bab661aSEmmanuel Vadot 7*8bab661aSEmmanuel Vadottitle: An external clock signal driven by a PWM pin. 8*8bab661aSEmmanuel Vadot 9*8bab661aSEmmanuel Vadotmaintainers: 10*8bab661aSEmmanuel Vadot - Philipp Zabel <p.zabel@pengutronix.de> 11*8bab661aSEmmanuel Vadot 12*8bab661aSEmmanuel Vadotproperties: 13*8bab661aSEmmanuel Vadot compatible: 14*8bab661aSEmmanuel Vadot const: pwm-clock 15*8bab661aSEmmanuel Vadot 16*8bab661aSEmmanuel Vadot '#clock-cells': 17*8bab661aSEmmanuel Vadot const: 0 18*8bab661aSEmmanuel Vadot 19*8bab661aSEmmanuel Vadot clock-frequency: 20*8bab661aSEmmanuel Vadot description: Exact output frequency, in case the PWM period is not exact 21*8bab661aSEmmanuel Vadot but was rounded to nanoseconds. 22*8bab661aSEmmanuel Vadot 23*8bab661aSEmmanuel Vadot clock-output-names: 24*8bab661aSEmmanuel Vadot maxItems: 1 25*8bab661aSEmmanuel Vadot 26*8bab661aSEmmanuel Vadot pwms: 27*8bab661aSEmmanuel Vadot maxItems: 1 28*8bab661aSEmmanuel Vadot 29*8bab661aSEmmanuel Vadotrequired: 30*8bab661aSEmmanuel Vadot - compatible 31*8bab661aSEmmanuel Vadot - '#clock-cells' 32*8bab661aSEmmanuel Vadot - pwms 33*8bab661aSEmmanuel Vadot 34*8bab661aSEmmanuel VadotadditionalProperties: false 35*8bab661aSEmmanuel Vadot 36*8bab661aSEmmanuel Vadotexamples: 37*8bab661aSEmmanuel Vadot - | 38*8bab661aSEmmanuel Vadot clock { 39*8bab661aSEmmanuel Vadot compatible = "pwm-clock"; 40*8bab661aSEmmanuel Vadot #clock-cells = <0>; 41*8bab661aSEmmanuel Vadot clock-frequency = <25000000>; 42*8bab661aSEmmanuel Vadot clock-output-names = "mipi_mclk"; 43*8bab661aSEmmanuel Vadot pwms = <&pwm2 0 40>; /* 1 / 40 ns = 25 MHz */ 44*8bab661aSEmmanuel Vadot }; 45*8bab661aSEmmanuel Vadot... 46