[v2,3/5] dt-bindings: i3c: Make 'assigned-address' valid if static address == 0
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Message ID c0505ef73add4512ce1ee2a71b1c8bc8f771151b.1567437955.git.vitor.soares@synopsys.com
State Not Applicable
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Series
  • i3c: remove device if failed on pre_assign_dyn_addr()
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Commit Message

Vitor Soares Sept. 3, 2019, 10:35 a.m. UTC
The I3C devices without a static address can require a specific dynamic
address for priority reasons.

Let's update the binding document to make the 'assigned-address' property
valid if static address == 0 and add an example with this use case.

Signed-off-by: Vitor Soares <vitor.soares@synopsys.com>
---
 Documentation/devicetree/bindings/i3c/i3c.txt | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

Comments

Rob Herring Sept. 3, 2019, 5:40 p.m. UTC | #1
On Tue,  3 Sep 2019 12:35:52 +0200, Vitor Soares wrote:
> The I3C devices without a static address can require a specific dynamic
> address for priority reasons.
> 
> Let's update the binding document to make the 'assigned-address' property
> valid if static address == 0 and add an example with this use case.
> 
> Signed-off-by: Vitor Soares <vitor.soares@synopsys.com>
> ---
>  Documentation/devicetree/bindings/i3c/i3c.txt | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/i3c/i3c.txt b/Documentation/devicetree/bindings/i3c/i3c.txt
index ab729a0..c851e75 100644
--- a/Documentation/devicetree/bindings/i3c/i3c.txt
+++ b/Documentation/devicetree/bindings/i3c/i3c.txt
@@ -98,9 +98,7 @@  Required properties
 
 Optional properties
 -------------------
-- assigned-address: dynamic address to be assigned to this device. This
-		    property is only valid if the I3C device has a static
-		    address (first cell of the reg property != 0).
+- assigned-address: dynamic address to be assigned to this device.
 
 
 Example:
@@ -129,6 +127,15 @@  Example:
 
 		/*
 		 * I3C device without a static I2C address but requiring
+		 * specific dynamic address.
+		 */
+		sensor@0,39200154004 {
+			reg = <0x0 0x6072 0x303904d2>;
+			assigned-address = <0xb>;
+		};
+
+		/*
+		 * I3C device without a static I2C address but requiring
 		 * resources described in the DT.
 		 */
 		sensor@0,39200154004 {