Hi Rob,
On 6/27/2022 7:34 PM, Rob Herring wrote:
On Mon, Jun 20, 2022 at 04:06:25PM +0200, Hakan Jansson wrote:
Hi Krzysztof,
Thanks for replying.
On 6/20/2022 2:32 PM, Krzysztof Kozlowski wrote:
CYW55572 is a Wi-Fi + Bluetooth combo device from Infineon.
Extend the binding with its DT compatible.
Signed-off-by: Hakan Jansson <hakan.jansson@xxxxxxxxxxxx>
---
Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
index df59575840fe..71fe9b17f8f1 100644
--- a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
@@ -24,6 +24,7 @@ properties:
- brcm,bcm43540-bt
- brcm,bcm4335a0
- brcm,bcm4349-bt
+ - infineon,cyw55572-bt
Patch is okay, but just to be sure - is it entirely different device
from Infineon or some variant of Broadcom block?
CYW55572 is a new device from Infineon. It is not the same as any Broadcom
device.
Are all existing
properties applicable to it as well?
Yes, all existing properties are applicable.
Including 'brcm,bt-pcm-int-params'?
Yes, 'brcm,bt-pcm-int-params' is also applicable to CYW55572.
I don't see a BT reset signal
either, but maybe that's not pinned out in the AzureWave module which
was the only documentation details I could find[1].
That's correct, CYW55572 does not have a BT reset signal. Most of the
existing listed compatible devices does not seem to have a BT reset
signal either so I think this is in line with the intention of the
existing document and driver implementation.
I think a separate doc will be better as it can be more precise as to
what's allowed or not. It's fine to reuse the same property names
though.
I don't really see anything besides the optional BT reset property that
would be changed in a separate doc. As a separate doc would mean a
duplication of data that would need to be maintained in two more or less
identical docs, perhaps it would be better to modify the existing doc to
clarify for which compatible devices that the BT reset property applies?
(Which I believe are only these three: bcm20702a1, bcm4329-bt and
bcm4330-bt)
Rob
[1] https://www.azurewave.com/img/infineon/AW-XH316_DS_DF_A_STD.pdf
Thanks,
Håkan
