Re: [PATCH v2 1/5] arm64: dts: ti: k3-j7200: Change timer nodes status to reserved

[Beleswar Prasad Padhi <b-padhi@ti.com>]

Hi Udit,

On 14-08-2024 20:41, Kumar, Udit wrote:
>
> On 8/14/2024 4:11 PM, Beleswar Padhi wrote:
>> The remoteproc firmware like of R5F and DSPs in the MAIN voltage domain
>
> There is no DSP on this SOC.
>
> Please consider to re-word commit message


Thanks for catching this! Will fix in revision.

>
>
>> use timers. Therefore, change the status of the timer nodes to
>> "reserved" to avoid any clash. Usage is described as below:
>>
>>     +===================+==========================+
>>     |  Remoteproc node  |        Timer Node        |
>>     +===================+==========================+
>>     | main_r5fss0_core0 | main_timer0, main_timer2 |
>>     +-------------------+--------------------------+
>>     | main_r5fss0_core1 | main_timer1              |
>>     +-------------------+--------------------------+
>
>
>> This change is already incorporated for timer nodes in the MCU voltage
>> domain.
>
> For whole series,  on MCU domain R5 we have device-manager firmware,
>
> which is needed to get SOC functional. So MCU domain timers are reserved.


Understood. Will fix in revision.

>
> So my suggestion will be to avoid above message
>
>
>>
>> Fixes: c8a28ed4837c ("arm64: dts: ti: k3-j7200: Add general purpose 
>> timers")
>> Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
>> ---
>>   .../boot/dts/ti/k3-j7200-common-proc-board.dts      | 13 +++++++++++++
>>   1 file changed, 13 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts 
>> b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
>> index 6593c5da82c0..a65066bd7f09 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
>> +++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
>> @@ -471,3 +471,16 @@ &main_mcan3 {
>>       pinctrl-0 = <&main_mcan3_pins_default>;
>>       phys = <&transceiver3>;
>>   };
>> +
>> +/* Timers are used by Remoteproc firmware */
>> +&main_timer0 {
>> +    status = "reserved";
>> +};
>> +
>> +&main_timer1 {
>> +    status = "reserved";
>> +};
>> +
>> +&main_timer2 {
>> +    status = "reserved";
>> +};