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arm: soc: kinetis: Update PWM dts support

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Add #pwm-cells properties to kinetis dts files and update the yaml
binding to spec the two cells as pin and period (in nanosecond to match
Linux Kernel binding spec).

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2018-11-01 11:59:56 -05:00 • committed by Kumar Gala
commit d857d2fac2
3 changed files with 12 additions and 7 deletions
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8
dts/arm/nxp/nxp_k6x.dtsi
View file

@ -337,8 +337,8 @@
reg = <0x40038000 0x98>; reg = <0x40038000 0x98>;
interrupts = <42 0>; interrupts = <42 0>;
label = "PWM_0"; label = "PWM_0";
/* channel information needed - fixme */
status = "disabled"; status = "disabled";
#pwm-cells = <2>;
}; };
pwm1: pwm@40039000{ pwm1: pwm@40039000{
@ -346,8 +346,8 @@
reg = <0x40039000 0x98>; reg = <0x40039000 0x98>;
interrupts = <43 0>; interrupts = <43 0>;
label = "PWM_1"; label = "PWM_1";
/* channel information needed - fixme */
status = "disabled"; status = "disabled";
#pwm-cells = <2>;
}; };
pwm2: pwm@4003a000{ pwm2: pwm@4003a000{
@ -355,8 +355,8 @@
reg = <0x4003a000 0x98>; reg = <0x4003a000 0x98>;
interrupts = <44 0>; interrupts = <44 0>;
label = "PWM_2"; label = "PWM_2";
/* channel information needed - fixme */
status = "disabled"; status = "disabled";
#pwm-cells = <2>;
}; };
pwm3: pwm@400b9000{ pwm3: pwm@400b9000{
@ -364,8 +364,8 @@
reg = <0x400b9000 0x98>; reg = <0x400b9000 0x98>;
interrupts = <71 0>; interrupts = <71 0>;
label = "PWM_3"; label = "PWM_3";
/* channel information needed - fixme */
status = "disabled"; status = "disabled";
#pwm-cells = <2>;
}; };
adc0: adc@4003b000{ adc0: adc@4003b000{

6
dts/arm/nxp/nxp_kw2xd.dtsi
View file

@ -287,8 +287,8 @@
reg = <0x40038000 0x98>; reg = <0x40038000 0x98>;
interrupts = <42 0>; interrupts = <42 0>;
label = "PWM_0"; label = "PWM_0";
/* channel information needed - fixme */
status = "disabled"; status = "disabled";
#pwm-cells = <2>;
}; };
pwm1: pwm@40039000{ pwm1: pwm@40039000{
@ -296,8 +296,8 @@
reg = <0x40039000 0x98>; reg = <0x40039000 0x98>;
interrupts = <43 0>; interrupts = <43 0>;
label = "PWM_1"; label = "PWM_1";
/* channel information needed - fixme */
status = "disabled"; status = "disabled";
#pwm-cells = <2>;
}; };
pwm2: pwm@4003a000{ pwm2: pwm@4003a000{
@ -305,8 +305,8 @@
reg = <0x4003a000 0x98>; reg = <0x4003a000 0x98>;
interrupts = <44 0>; interrupts = <44 0>;
label = "PWM_2"; label = "PWM_2";
/* channel information needed - fixme */
status = "disabled"; status = "disabled";
#pwm-cells = <2>;
}; };
adc0: adc@4003b000{ adc0: adc@4003b000{

5
dts/bindings/pwm/nxp,kinetis-ftm.yaml
View file

@ -28,4 +28,9 @@ properties:
category: required category: required
description: required interrupts description: required interrupts
generation: define generation: define
"#cells":
- channel
# period in terms of nanoseconds
- period
... ...