[PATCH v2 1/3] mfd: documentation: dt: Document grounded ACOKB pin on S2MPS11

[Krzysztof Kozlowski <k.kozlowski.k@gmail.com>]

Document a new Device Tree property 'samsung,s2mps11-acokb-ground'
indicating that ACOKB pin of S2MPS11 PMIC is connected to the ground so
the PMIC must manually set PWRHOLD bit in CTRL1 register to turn off the
power.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>

---

Changes since v1:
1. Split bindings documentation to separate patch (suggested by Lee).
2. Add Javier's reviewed-by and Lee's acked-by.
---
 Documentation/devicetree/bindings/mfd/s2mps11.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/s2mps11.txt b/Documentation/devicetree/bindings/mfd/s2mps11.txt
index 57a045016fca..90eaef393325 100644
--- a/Documentation/devicetree/bindings/mfd/s2mps11.txt
+++ b/Documentation/devicetree/bindings/mfd/s2mps11.txt
@@ -15,6 +15,10 @@ Optional properties:
 - interrupt-parent: Specifies the phandle of the interrupt controller to which
   the interrupts from s2mps11 are delivered to.
 - interrupts: Interrupt specifiers for interrupt sources.
+- samsung,s2mps11-acokb-ground: Indicates that ACOKB pin of S2MPS11 PMIC is
+  connected to the ground so the PMIC must manually set PWRHOLD bit in CTRL1
+  register to turn off the power. Usually the ACOKB is pulled up to VBATT so
+  when PWRHOLD pin goes low, the rising ACOKB will trigger power off.
 
 Optional nodes:
 - clocks: s2mps11, s2mps13 and s5m8767 provide three(AP/CP/BT) buffered 32.768
-- 
2.1.4