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ARM: dts: am437x/am33xx/da850: Add new ECAP and EPWM bindings 

Switch to a new ECAP and EPWM bindings that doesn't depend on hwmod to
provide the various required clocks.

For AM437 and AM335x, add the required clocks explicitly to DT. The
hwmod entries for ECAP and EPWM will be removed and this will prevent
anything from breaking.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
hifive-unleashed-5.1
Franklin S Cooper Jr 2016-05-03 10:56:51 -05:00 committed by Tony Lindgren
parent 7d68a7f8fe
commit 229110c1aa
4 changed files with 93 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
View File

@ -2,9 +2,9 @@ TI SOC ECAP based APWM controller
Required properties:
- compatible: Must be "ti,<soc>-ecap".
for am33xx - compatible = "ti,am33xx-ecap";
for am4372 - compatible = "ti,am4372-ecap", "ti,am33xx-ecap";
for da850 - compatible = "ti,da850-ecap", "ti,am33xx-ecap";
for am33xx - compatible = "ti,am3352-ecap", "ti,am33xx-ecap";
for am4372 - compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
for da850 - compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
the cells format. The PWM channel index ranges from 0 to 4. The only third
cell flag supported by this binding is PWM_POLARITY_INVERTED.
@ -13,25 +13,31 @@ Required properties:
Optional properties:
- ti,hwmods: Name of the hwmod associated to the ECAP:
"ecap<x>", <x> being the 0-based instance number from the HW spec
- clocks: Handle to the ECAP's functional clock.
- clock-names: Must be set to "fck".
Example:
ecap0: ecap@48300100 { /* ECAP on am33xx */
compatible = "ti,am33xx-ecap";
compatible = "ti,am3352-ecap", "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48300100 0x80>;
ti,hwmods = "ecap0";
clocks = <&l4ls_gclk>;
clock-names = "fck";
};
ecap0: ecap@48300100 { /* ECAP on am4372 */
compatible = "ti,am4372-ecap", "ti,am33xx-ecap";
compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48300100 0x80>;
ti,hwmods = "ecap0";
clocks = <&l4ls_gclk>;
clock-names = "fck";
};
ecap0: ecap@1f06000 { /* ECAP on da850 */
compatible = "ti,da850-ecap", "ti,am33xx-ecap";
compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x1f06000 0x80>;
};

18
Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
View File

@ -2,9 +2,9 @@ TI SOC EHRPWM based PWM controller
Required properties:
- compatible: Must be "ti,<soc>-ehrpwm".
for am33xx - compatible = "ti,am33xx-ehrpwm";
for am4372 - compatible = "ti,am4372-ehrpwm", "ti,am33xx-ehrpwm";
for da850 - compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
for am33xx - compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
for am4372 - compatible = "ti,am4372-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
for da850 - compatible = "ti,da850-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
the cells format. The only third cell flag supported by this binding is
PWM_POLARITY_INVERTED.
@ -13,25 +13,31 @@ Required properties:
Optional properties:
- ti,hwmods: Name of the hwmod associated to the EHRPWM:
"ehrpwm<x>", <x> being the 0-based instance number from the HW spec
- clocks: Handle to the PWM's time-base and functional clock.
- clock-names: Must be set to "tbclk" and "fck".
Example:
ehrpwm0: pwm@48300200 { /* EHRPWM on am33xx */
compatible = "ti,am33xx-ehrpwm";
compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48300200 0x100>;
clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
ti,hwmods = "ehrpwm0";
};
ehrpwm0: pwm@48300200 { /* EHRPWM on am4372 */
compatible = "ti,am4372-ehrpwm", "ti,am33xx-ehrpwm";
compatible = "ti,am4372-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48300200 0x80>;
clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
ti,hwmods = "ehrpwm0";
};
ehrpwm0: pwm@1f00000 { /* EHRPWM on da850 */
compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
compatible = "ti,da850-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x1f00000 0x2000>;
};

30
arch/arm/boot/dts/am33xx.dtsi
View File

@ -679,9 +679,12 @@
0x48300200 0x48300200 0x80>; /* EHRPWM */
ecap0: ecap@48300100 {
compatible = "ti,am33xx-ecap";
compatible = "ti,am3352-ecap",
"ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48300100 0x80>;
clocks = <&l4ls_gclk>;
clock-names = "fck";
interrupts = <31>;
interrupt-names = "ecap0";
ti,hwmods = "ecap0";
@ -689,10 +692,13 @@
};
ehrpwm0: pwm@48300200 {
compatible = "ti,am33xx-ehrpwm";
compatible = "ti,am3352-ehrpwm",
"ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48300200 0x80>;
ti,hwmods = "ehrpwm0";
clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
status = "disabled";
};
};
@ -709,9 +715,12 @@
0x48302200 0x48302200 0x80>; /* EHRPWM */
ecap1: ecap@48302100 {
compatible = "ti,am33xx-ecap";
compatible = "ti,am3352-ecap",
"ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48302100 0x80>;
clocks = <&l4ls_gclk>;
clock-names = "fck";
interrupts = <47>;
interrupt-names = "ecap1";
ti,hwmods = "ecap1";
@ -719,10 +728,13 @@
};
ehrpwm1: pwm@48302200 {
compatible = "ti,am33xx-ehrpwm";
compatible = "ti,am3352-ehrpwm",
"ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48302200 0x80>;
ti,hwmods = "ehrpwm1";
clocks = <&ehrpwm1_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
status = "disabled";
};
};
@ -739,9 +751,12 @@
0x48304200 0x48304200 0x80>; /* EHRPWM */
ecap2: ecap@48304100 {
compatible = "ti,am33xx-ecap";
compatible = "ti,am3352-ecap",
"ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48304100 0x80>;
clocks = <&l4ls_gclk>;
clock-names = "fck";
interrupts = <61>;
interrupt-names = "ecap2";
ti,hwmods = "ecap2";
@ -749,10 +764,13 @@
};
ehrpwm2: pwm@48304200 {
compatible = "ti,am33xx-ehrpwm";
compatible = "ti,am3352-ehrpwm",
"ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48304200 0x80>;
ti,hwmods = "ehrpwm2";
clocks = <&ehrpwm2_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
status = "disabled";
};
};

54
arch/arm/boot/dts/am4372.dtsi
View File

@ -672,18 +672,26 @@
status = "disabled";
ecap0: ecap@48300100 {
compatible = "ti,am4372-ecap","ti,am33xx-ecap";
compatible = "ti,am4372-ecap",
"ti,am3352-ecap",
"ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48300100 0x80>;
ti,hwmods = "ecap0";
clocks = <&l4ls_gclk>;
clock-names = "fck";
status = "disabled";
};
ehrpwm0: pwm@48300200 {
compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
compatible = "ti,am4372-ehrpwm",
"ti,am3352-ehrpwm",
"ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48300200 0x80>;
ti,hwmods = "ehrpwm0";
clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
status = "disabled";
};
};
@ -698,18 +706,26 @@
status = "disabled";
ecap1: ecap@48302100 {
compatible = "ti,am4372-ecap","ti,am33xx-ecap";
compatible = "ti,am4372-ecap",
"ti,am3352-ecap",
"ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48302100 0x80>;
ti,hwmods = "ecap1";
clocks = <&l4ls_gclk>;
clock-names = "fck";
status = "disabled";
};
ehrpwm1: pwm@48302200 {
compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
compatible = "ti,am4372-ehrpwm",
"ti,am3352-ehrpwm",
"ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48302200 0x80>;
ti,hwmods = "ehrpwm1";
clocks = <&ehrpwm1_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
status = "disabled";
};
};
@ -724,18 +740,26 @@
status = "disabled";
ecap2: ecap@48304100 {
compatible = "ti,am4372-ecap","ti,am33xx-ecap";
compatible = "ti,am4372-ecap",
"ti,am3352-ecap",
"ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48304100 0x80>;
clocks = <&l4ls_gclk>;
clock-names = "fck";
ti,hwmods = "ecap2";
status = "disabled";
};
ehrpwm2: pwm@48304200 {
compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
compatible = "ti,am4372-ehrpwm",
"ti,am3352-ehrpwm",
"ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48304200 0x80>;
ti,hwmods = "ehrpwm2";
clocks = <&ehrpwm2_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
status = "disabled";
};
};
@ -750,10 +774,14 @@
status = "disabled";
ehrpwm3: pwm@48306200 {
compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
compatible = "ti,am4372-ehrpwm",
"ti,am3352-ehrpwm",
"ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48306200 0x80>;
ti,hwmods = "ehrpwm3";
clocks = <&ehrpwm3_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
status = "disabled";
};
};
@ -768,10 +796,14 @@
status = "disabled";
ehrpwm4: pwm@48308200 {
compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
compatible = "ti,am4372-ehrpwm",
"ti,am3352-ehrpwm",
"ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48308200 0x80>;
ti,hwmods = "ehrpwm4";
clocks = <&ehrpwm4_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
status = "disabled";
};
};
@ -786,9 +818,13 @@
status = "disabled";
ehrpwm5: pwm@4830a200 {
compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
compatible = "ti,am4372-ehrpwm",
"ti,am3352-ehrpwm",
"ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x4830a200 0x80>;
clocks = <&ehrpwm5_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
ti,hwmods = "ehrpwm5";
status = "disabled";
};