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[v3,1/4] dt-bindings: i2c: mpc: Add fsl, i2c-erratum-a004447 flag

Message ID 20210511212052.27242-2-chris.packham@alliedtelesis.co.nz
State Not Applicable
Headers show
Series P2040/P2041 i2c recovery erratum | expand

Checks

Context Check Description
snowpatch_ozlabs/apply_patch success Successfully applied on branch powerpc/merge (fcc98c6d0289241dded10b74f8198fc4ecb22bd1)
snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 13 lines checked
snowpatch_ozlabs/needsstable success Patch has no Fixes tags

Commit Message

Chris Packham May 11, 2021, 9:20 p.m. UTC
Document the fsl,i2c-erratum-a004447 flag which indicates the presence
of an i2c erratum on some QorIQ SoCs.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Rob Herring <robh@kernel.org>
---

Notes:
    Changes in v3:
    - Add Ack from Rob

 Documentation/devicetree/bindings/i2c/i2c-mpc.yaml | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml b/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml
index 7b553d559c83..98c6fcf7bf26 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-mpc.yaml
@@ -46,6 +46,13 @@  properties:
     description: |
       I2C bus timeout in microseconds
 
+  fsl,i2c-erratum-a004447:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: |
+      Indicates the presence of QorIQ erratum A-004447, which
+      says that the standard i2c recovery scheme mechanism does
+      not work and an alternate implementation is needed.
+
 required:
   - compatible
   - reg