Since the PWMSS and its subdevices (eCAP and ePWM) use the same address
space then the range property should be empty. Update the documentation
to show the correct usage.
Signed-off-by: Franklin S Cooper Jr <fcooper@xxxxxx>
---
Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
index f7eae77..672fa71 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
@@ -7,11 +7,9 @@ Required properties:
Should set to 1.
- size-cells: specify number of u32 entries needed to specify child nodes size
in reg property. Should set to 1.
-- ranges: describes the address mapping of a memory-mapped bus. Should set to
- physical address map of child's base address, physical address within
- parent's address space and length of the address map. For am33xx,
- 3 set of child register maps present, ECAP register space, EQEP
- register space, EHRPWM register space.
+- ranges: describes the address mapping of a memory-mapped bus. Its value
+ should be empty since no address translation is needed between the
+ parent and the child.
Also child nodes should also populated under PWMSS DT node.
@@ -23,9 +21,7 @@ pwmss0: pwmss@48300000 {
#address-cells = <1>;
#size-cells = <1>;
status = "disabled";
- ranges = <0x48300100 0x48300100 0x80 /* ECAP */
- 0x48300180 0x48300180 0x80 /* EQEP */
- 0x48300200 0x48300200 0x80>; /* EHRPWM */
+ ranges;
/* child nodes go here */
};
--
2.7.0
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