Re: [PATCH 10/10] Bluetooth: add nokia driver

From: Marcel Holtmann
Date: Tue Mar 07 2017 - 16:58:27 EST


Hi Sebastian,

>>> This adds a driver for the Nokia H4+ protocol, which is used
>>> at least on the Nokia N9, N900 & N950.
>>>
>>> Signed-off-by: Sebastian Reichel <sre@xxxxxxxxxx>
>>> ---
>>> .../devicetree/bindings/net/nokia-bluetooth.txt | 51 ++
>>
>> This should be separate and before the dts files.
>>
>>> drivers/bluetooth/Kconfig | 12 +
>>> drivers/bluetooth/Makefile | 2 +
>>> drivers/bluetooth/hci_nokia.c | 839 +++++++++++++++++++++
>>> 4 files changed, 904 insertions(+)
>>> create mode 100644 Documentation/devicetree/bindings/net/nokia-bluetooth.txt
>>> create mode 100644 drivers/bluetooth/hci_nokia.c
>>>
>>> diff --git a/Documentation/devicetree/bindings/net/nokia-bluetooth.txt b/Documentation/devicetree/bindings/net/nokia-bluetooth.txt
>>> new file mode 100644
>>> index 000000000000..6c80a92f31e2
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/net/nokia-bluetooth.txt
>>> @@ -0,0 +1,51 @@
>>> +Nokia Bluetooth Chips
>>> +---------------------
>>> +
>>> +Nokia phones often come with UART connected bluetooth chips from different
>>> +vendors and modified device API. Those devices speak a protocol named H4+
>>> +by Nokia, which is similar to the H4 protocol from the Bluetooth standard.
>>> +In addition to the H4 protocol it specifies two more UART status lines for
>>> +wakeup of UART transceivers to improve power management and a few new packet
>>> +types used to negotiate uart speed.
>>> +
>>> +Required properties:
>>> +
>>> + - compatible: should be one of the following:
>>> + * "nokia,brcm,bcm2048"
>>> + * "nokia,ti,wl1271-bluetooth"
>>
>> Drop the chip vendors' prefix here. I don't really want to start a
>> pattern of 2 vendor prefixes.
>
> Right, I think we discussed this before, but I don't remember the
> result. How about
>
> - compatible: should contain "nokia,h4p-bluetooth" as well as one of the following:
> * "brcm,bcm2048-nokia"
> * "ti,wl1271-blueooth-nokiaâ

I never liked the term âh4pâ. It is fundamentally just âbluetoothâ. What are our plans for Broadcom, Intel etc. Bluetooth UARTs?

Regards

Marcel