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ARM: dts: am437x: Add missing compatibles to PWM binding documents

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There are several SOC specific compatibles for ECAP, EHRPWM and PWMMS
that are in use but aren't properly documented. Therefore, fix this
by adding the compatibles to the appropriate binding documents.

While at it make minor corrections to the binding document.

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>
This commit is contained in:
Franklin S Cooper Jr
2016-05-03 10:56:48 -05:00
committed by Tony Lindgren
parent 1a695a905c
commit 96d5a54537
3 changed files with 39 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
View File

@@ -1,7 +1,10 @@
TI SOC based PWM Subsystem
Required properties:
- compatible: Must be "ti,am33xx-pwmss";
- compatible: Must be "ti,<soc>-pwmss".
for am33xx - compatible = "ti,am33xx-pwmss";
for am4372 - compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
- reg: physical base address and size of the registers map.
- address-cells: Specify the number of u32 entries needed in child nodes.
Should set to 1.
@@ -16,7 +19,7 @@ Required properties:
Also child nodes should also populated under PWMSS DT node.
Example:
pwmss0: pwmss@48300000 {
epwmss0: epwmss@48300000 { /* PWMSS for am33xx */
compatible = "ti,am33xx-pwmss";
reg = <0x48300000 0x10>;
ti,hwmods = "epwmss0";
@@ -29,3 +32,17 @@ pwmss0: pwmss@48300000 {
/* child nodes go here */
};
epwmss0: epwmss@48300000 { /* PWMSS for am4372 */
compatible = "ti,am4372-pwmss","ti,am33xx-pwmss"
reg = <0x48300000 0x10>;
ti,hwmods = "epwmss0";
#address-cells = <1>;
#size-cells = <1>;
status = "disabled";
ranges = <0x48300100 0x48300100 0x80 /* ECAP */
0x48300180 0x48300180 0x80 /* EQEP */
0x48300200 0x48300200 0x80>; /* EHRPWM */
/* child nodes go here */
};