Re: [PATCH v3 4/4] arm64: dts: rockchip: Add rkvdec2 Video Decoder on rk3588(s)

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Hi Detlev,

On 2024-06-25 19:40, Detlev Casanova wrote:
> Hi Jonas,
> 
> On Thursday, June 20, 2024 11:00:49 A.M. EDT Jonas Karlman wrote:
>> Hi Detlev,
>>
>> On 2024-06-20 16:19, Detlev Casanova wrote:
>>> Add the rkvdec2 Video Decoder to the RK3588s devicetree.
>>>
>>> Signed-off-by: Detlev Casanova <detlev.casanova@xxxxxxxxxxxxx>
>>> ---
>>>
>>>  arch/arm64/boot/dts/rockchip/rk3588s.dtsi | 48 +++++++++++++++++++++++
>>>  1 file changed, 48 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
>>> b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi index
>>> 6ac5ac8b48ab..9c44c99125b4 100644
>>> --- a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
>>> +++ b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
>>> @@ -2596,6 +2596,16 @@ system_sram2: sram@ff001000 {
>>>
>>>  		ranges = <0x0 0x0 0xff001000 0xef000>;
>>>  		#address-cells = <1>;
>>>  		#size-cells = <1>;
>>>
>>> +
>>> +		vdec0_sram: rkvdec-sram@0 {
>>> +			reg = <0x0 0x78000>;
>>> +			pool;
>>> +		};
>>> +
>>> +		vdec1_sram: rkvdec-sram@1 {
>>> +			reg = <0x78000 0x77000>;
>>> +			pool;
>>> +		};
>>>
>>>  	};
>>>  	
>>>  	pinctrl: pinctrl {
>>>
>>> @@ -2665,6 +2675,44 @@ gpio4: gpio@fec50000 {
>>>
>>>  			#interrupt-cells = <2>;
>>>  		
>>>  		};
>>>  	
>>>  	};
>>>
>>> +
>>> +	vdec0: video-decoder@fdc38100 {
>>
>> This and the vdec1 node should probably be added between
>>
>>   pmu: power-management@fd8d8000
>>
>> and
>>
>>   av1d: video-codec@fdc70000
>>
>> to follow reg order.
>>
>> Also I am wondering if the nodes should be named
>>
>>   video-codec@fdc38000
>>
>> and
>>
>>   video-codec@fdc40000
>>
>> to match "1.1 Address Mapping" in TRM and the actual base address for
>> the VDPU381 IP and video-codec is used for other codec nodes.
>>
>>> +		compatible = "rockchip,rk3588-vdec";
>>> +		reg = <0x0 0xfdc38100 0x0 0x500>;
>>
>> For existing rkvdec1 devices the cache regs is also included in the
>> range, should cache regs also be included for rkvdec2?, e.g.:
>>
>>   reg = <0x0 0xfdc38100 0x0 0x600>;
>>
>> And maybe it also should include the link list regs, e.g.:
>>
>>   reg = <0x0 0xfdc38000 0x0 0x700>;
>>
>> or possible:
>>
>>   reg = <0x0 0xfdc38000 0x0 0x100>,
>>         <0x0 0xfdc38100 0x0 0x500>,
>>         <0x0 0xfdc38600 0x0 0x100>;
>>
>> Something like that may be a better description of the hw.
> 
> Would it make sense to also add reg-names then ?
> reg-names = "link", "function", "cache";

This sounds like a good idea and matches TRM:


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