diff mbox series

[RFC,1/2] dt-bindings: net: realtek-bluetooth: Add RTL8821CS

Message ID 20230126165529.1452252-2-macroalpha82@gmail.com (mailing list archive)
State Superseded
Headers show
Series Bluetooth: Add support for RTL8821CS | expand

Checks

Context Check Description
tedd_an/pre-ci_am success Success
tedd_an/CheckPatch success CheckPatch PASS
tedd_an/GitLint success Gitlint PASS
tedd_an/SubjectPrefix fail "Bluetooth: " prefix is not specified in the subject
tedd_an/BuildKernel success BuildKernel PASS
tedd_an/CheckAllWarning success CheckAllWarning PASS
tedd_an/CheckSparse warning CheckSparse WARNING drivers/bluetooth/btrtl.c: note: in included file:drivers/bluetooth/btrtl.h:47:45: warning: array of flexible structures
tedd_an/CheckSmatch warning CheckSparse WARNING drivers/bluetooth/btrtl.c: note: in included file:drivers/bluetooth/btrtl.h:47:45: warning: array of flexible structures
tedd_an/BuildKernel32 success BuildKernel32 PASS
tedd_an/TestRunnerSetup success TestRunnerSetup PASS
tedd_an/TestRunner_l2cap-tester success TestRunner PASS
tedd_an/TestRunner_iso-tester success TestRunner PASS
tedd_an/TestRunner_bnep-tester success TestRunner PASS
tedd_an/TestRunner_mgmt-tester success TestRunner PASS
tedd_an/TestRunner_rfcomm-tester success TestRunner PASS
tedd_an/TestRunner_sco-tester success TestRunner PASS
tedd_an/TestRunner_ioctl-tester success TestRunner PASS
tedd_an/TestRunner_mesh-tester success TestRunner PASS
tedd_an/TestRunner_smp-tester success TestRunner PASS
tedd_an/TestRunner_userchan-tester success TestRunner PASS
tedd_an/IncrementalBuild success Incremental Build PASS

Commit Message

Chris Morgan Jan. 26, 2023, 4:55 p.m. UTC
From: Chris Morgan <macromorgan@hotmail.com>

Add compatible string for RTL8821CS for existing Realtek Bluetooth
driver.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 Documentation/devicetree/bindings/net/realtek-bluetooth.yaml | 1 +
 1 file changed, 1 insertion(+)

Comments

bluez.test.bot@gmail.com Jan. 26, 2023, 5:35 p.m. UTC | #1
This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=715934

---Test result---

Test Summary:
CheckPatch                    PASS      2.17 seconds
GitLint                       PASS      0.75 seconds
SubjectPrefix                 FAIL      0.58 seconds
BuildKernel                   PASS      38.49 seconds
CheckAllWarning               PASS      41.50 seconds
CheckSparse                   WARNING   47.05 seconds
CheckSmatch                   WARNING   127.35 seconds
BuildKernel32                 PASS      36.70 seconds
TestRunnerSetup               PASS      526.86 seconds
TestRunner_l2cap-tester       PASS      19.05 seconds
TestRunner_iso-tester         PASS      20.75 seconds
TestRunner_bnep-tester        PASS      6.80 seconds
TestRunner_mgmt-tester        PASS      129.94 seconds
TestRunner_rfcomm-tester      PASS      10.75 seconds
TestRunner_sco-tester         PASS      9.87 seconds
TestRunner_ioctl-tester       PASS      11.82 seconds
TestRunner_mesh-tester        PASS      8.72 seconds
TestRunner_smp-tester         PASS      9.75 seconds
TestRunner_userchan-tester    PASS      7.21 seconds
IncrementalBuild              PASS      40.32 seconds

Details
##############################
Test: SubjectPrefix - FAIL
Desc: Check subject contains "Bluetooth" prefix
Output:
"Bluetooth: " prefix is not specified in the subject
##############################
Test: CheckSparse - WARNING
Desc: Run sparse tool with linux kernel
Output:
drivers/bluetooth/btrtl.c: note: in included file:drivers/bluetooth/btrtl.h:47:45: warning: array of flexible structures
##############################
Test: CheckSmatch - WARNING
Desc: Run smatch tool with source
Output:
drivers/bluetooth/btrtl.c: note: in included file:drivers/bluetooth/btrtl.h:47:45: warning: array of flexible structures


---
Regards,
Linux Bluetooth
Krzysztof Kozlowski Jan. 27, 2023, 10:24 a.m. UTC | #2
On 26/01/2023 17:55, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
> 
> Add compatible string for RTL8821CS for existing Realtek Bluetooth
> driver.
> 
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> ---
>  Documentation/devicetree/bindings/net/realtek-bluetooth.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 

Based on your driver it is compatible with rtl8822cs, so you can
indicate it in the binding and use just one of_device_id entry.

Best regards,
Krzysztof
Chris Morgan Jan. 27, 2023, 4:46 p.m. UTC | #3
On Fri, Jan 27, 2023 at 11:24:03AM +0100, Krzysztof Kozlowski wrote:
> On 26/01/2023 17:55, Chris Morgan wrote:
> > From: Chris Morgan <macromorgan@hotmail.com>
> > 
> > Add compatible string for RTL8821CS for existing Realtek Bluetooth
> > driver.
> > 
> > Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> > ---
> >  Documentation/devicetree/bindings/net/realtek-bluetooth.yaml | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> 
> Based on your driver it is compatible with rtl8822cs, so you can
> indicate it in the binding and use just one of_device_id entry.

It's very similar, and uses some of the same constants, but has a
different firmware. I assumed the firmware difference is enough to
require it to be differentiated, but I wasn't sure. You are saying
it does not? I just want to be clear.

As always, thank you.

> 
> Best regards,
> Krzysztof
>
Krzysztof Kozlowski Jan. 27, 2023, 4:53 p.m. UTC | #4
On 27/01/2023 17:46, Chris Morgan wrote:
> On Fri, Jan 27, 2023 at 11:24:03AM +0100, Krzysztof Kozlowski wrote:
>> On 26/01/2023 17:55, Chris Morgan wrote:
>>> From: Chris Morgan <macromorgan@hotmail.com>
>>>
>>> Add compatible string for RTL8821CS for existing Realtek Bluetooth
>>> driver.
>>>
>>> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
>>> ---
>>>  Documentation/devicetree/bindings/net/realtek-bluetooth.yaml | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>
>> Based on your driver it is compatible with rtl8822cs, so you can
>> indicate it in the binding and use just one of_device_id entry.
> 
> It's very similar, and uses some of the same constants, but has a
> different firmware. I assumed the firmware difference is enough to
> require it to be differentiated, but I wasn't sure. You are saying
> it does not? I just want to be clear.

If by "differentiated" you mean "incompatible", then depends:
1. You have firmware-name property to indicate the firmware to load and
then you can use one compatible to bind and just load different firmware,
2. If device variant is autodectable, it's compatible.

realtek,rtl8723ds-bt also was added to the driver uselessly...

Best regards,
Krzysztof
Chris Morgan Jan. 27, 2023, 5 p.m. UTC | #5
On Fri, Jan 27, 2023 at 05:53:49PM +0100, Krzysztof Kozlowski wrote:
> On 27/01/2023 17:46, Chris Morgan wrote:
> > On Fri, Jan 27, 2023 at 11:24:03AM +0100, Krzysztof Kozlowski wrote:
> >> On 26/01/2023 17:55, Chris Morgan wrote:
> >>> From: Chris Morgan <macromorgan@hotmail.com>
> >>>
> >>> Add compatible string for RTL8821CS for existing Realtek Bluetooth
> >>> driver.
> >>>
> >>> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> >>> ---
> >>>  Documentation/devicetree/bindings/net/realtek-bluetooth.yaml | 1 +
> >>>  1 file changed, 1 insertion(+)
> >>>
> >>
> >> Based on your driver it is compatible with rtl8822cs, so you can
> >> indicate it in the binding and use just one of_device_id entry.
> > 
> > It's very similar, and uses some of the same constants, but has a
> > different firmware. I assumed the firmware difference is enough to
> > require it to be differentiated, but I wasn't sure. You are saying
> > it does not? I just want to be clear.
> 
> If by "differentiated" you mean "incompatible", then depends:
> 1. You have firmware-name property to indicate the firmware to load and
> then you can use one compatible to bind and just load different firmware,
> 2. If device variant is autodectable, it's compatible.
> 
> realtek,rtl8723ds-bt also was added to the driver uselessly...

Gotcha.

They are incompatible, but the driver should be able to autodetect each
device as best I can tell. In fact all of the devices listed in the
bindings should be autodetectable by the driver (again, as best I can
tell). Honestly though that's assuming I'm using the correct firmware,
which is why I have this tagged as an RFC. I'm really hoping to get
Realtek's attention for them to chime in to confirm I'm using the
most recent firmware and under what license/terms the firmware can
be redistributed so that the firmware may be added to linux-firmware.

Assuming everything is good though, I can resubmit V2 and instead of
adding a new compatible just noting that the 8822CS and 8821CS use
the same bindings.

Thank you.

> 
> Best regards,
> Krzysztof
>
Krzysztof Kozlowski Jan. 27, 2023, 5:02 p.m. UTC | #6
On 27/01/2023 18:00, Chris Morgan wrote:
> On Fri, Jan 27, 2023 at 05:53:49PM +0100, Krzysztof Kozlowski wrote:
>> On 27/01/2023 17:46, Chris Morgan wrote:
>>> On Fri, Jan 27, 2023 at 11:24:03AM +0100, Krzysztof Kozlowski wrote:
>>>> On 26/01/2023 17:55, Chris Morgan wrote:
>>>>> From: Chris Morgan <macromorgan@hotmail.com>
>>>>>
>>>>> Add compatible string for RTL8821CS for existing Realtek Bluetooth
>>>>> driver.
>>>>>
>>>>> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
>>>>> ---
>>>>>  Documentation/devicetree/bindings/net/realtek-bluetooth.yaml | 1 +
>>>>>  1 file changed, 1 insertion(+)
>>>>>
>>>>
>>>> Based on your driver it is compatible with rtl8822cs, so you can
>>>> indicate it in the binding and use just one of_device_id entry.
>>>
>>> It's very similar, and uses some of the same constants, but has a
>>> different firmware. I assumed the firmware difference is enough to
>>> require it to be differentiated, but I wasn't sure. You are saying
>>> it does not? I just want to be clear.
>>
>> If by "differentiated" you mean "incompatible", then depends:
>> 1. You have firmware-name property to indicate the firmware to load and
>> then you can use one compatible to bind and just load different firmware,
>> 2. If device variant is autodectable, it's compatible.
>>
>> realtek,rtl8723ds-bt also was added to the driver uselessly...
> 
> Gotcha.
> 
> They are incompatible, but the driver should be able to autodetect each
> device as best I can tell. In fact all of the devices listed in the
> bindings should be autodetectable by the driver (again, as best I can
> tell). Honestly though that's assuming I'm using the correct firmware,
> which is why I have this tagged as an RFC. I'm really hoping to get
> Realtek's attention for them to chime in to confirm I'm using the
> most recent firmware and under what license/terms the firmware can
> be redistributed so that the firmware may be added to linux-firmware.
> 
> Assuming everything is good though, I can resubmit V2 and instead of
> adding a new compatible just noting that the 8822CS and 8821CS use
> the same bindings.

They cannot use the same bindings. You always need specific compatible
and this was not discussed here. What's discussed is to drop the driver
change in of_device_id.

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml
index 143b5667abad..5af4731338c0 100644
--- a/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml
+++ b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml
@@ -21,6 +21,7 @@  properties:
       - realtek,rtl8723bs-bt
       - realtek,rtl8723cs-bt
       - realtek,rtl8723ds-bt
+      - realtek,rtl8821cs-bt
       - realtek,rtl8822cs-bt
 
   device-wake-gpios: