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Subject[PATCH 2/4] dt-bindings: hwlock: qcom: Allow device on mmio bus
Date
In all modern Qualcomm platforms the mutex region of the TCSR is forked
off into its own block, all with a offset of 0 and stride of 4096.
Update the binding to allow the hardware block to be described directly
on the mmio bus, in addition to allowing the existing syscon based
definition.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
.../bindings/hwlock/qcom-hwspinlock.yaml | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml
index 71e63b52edd5..88f975837588 100644
--- a/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml
+++ b/Documentation/devicetree/bindings/hwlock/qcom-hwspinlock.yaml
@@ -19,6 +19,9 @@ properties:
- qcom,sfpb-mutex
- qcom,tcsr-mutex

+ reg:
+ maxItems: 1
+
'#hwlock-cells':
const: 1

@@ -31,7 +34,12 @@ properties:
required:
- compatible
- '#hwlock-cells'
- - syscon
+
+oneOf:
+ - required:
+ - reg
+ - required:
+ - syscon

additionalProperties: false

@@ -46,6 +54,12 @@ examples:
compatible = "qcom,tcsr-mutex";
syscon = <&tcsr_mutex_block 0 0x80>;

+ #hwlock-cells = <1>;
+ };
+ - |
+ tcsr_mutex: hwlock@1f40000 {
+ compatible = "qcom,tcsr-mutex";
+ reg = <0x01f40000 0x40000>;
#hwlock-cells = <1>;
};
...
--
2.26.2
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