On 23/02/2023 09:21, suijingfeng wrote:
>
> On 2023/2/23 16:05, Krzysztof Kozlowski wrote:
>> On 23/02/2023 08:58, Krzysztof Kozlowski wrote:
>>> On 23/02/2023 04:19, Sui jingfeng wrote:
>>>> Hi,
>>>>
>>>> On 2023/2/23 02:32, Krzysztof Kozlowski wrote:
>>>>> On 22/02/2023 17:55, suijingfeng wrote:
>>>>>> The display controller is a pci device, it's pci vendor id is
>>>>>> 0x0014, it's pci device id is 0x7a06.
>>>>>>
>>>>>> Signed-off-by: suijingfeng <suijingfeng@xxxxxxxxxxx>
>>>>>> ---
>>>>>> .../boot/dts/loongson/loongson64-2k1000.dtsi | 21 +++++++++++++++++++
>>>>>> 1 file changed, 21 insertions(+)
>>>>>>
>>>>>> diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
>>>>>> index 8143a61111e3..a528af3977d9 100644
>>>>>> --- a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
>>>>>> +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi
>>>>>> @@ -31,6 +31,18 @@ memory@200000 {
>>>>>> <0x00000001 0x10000000 0x00000001 0xb0000000>; /* 6912 MB at 4352MB */
>>>>>> };
>>>>>>
>>>>>> + reserved-memory {
>>>>>> + #address-cells = <2>;
>>>>>> + #size-cells = <2>;
>>>>>> + ranges;
>>>>>> +
>>>>>> + display_reserved: framebuffer@30000000 {
>>>>>> + compatible = "shared-dma-pool";
>>>>>> + reg = <0x0 0x30000000 0x0 0x04000000>; /* 64M */
>>>>>> + linux,cma-default;
>>>>>> + };
>>>>>> + };
>>>>>> +
>>>>>> cpu_clk: cpu_clk {
>>>>>> #clock-cells = <0>;
>>>>>> compatible = "fixed-clock";
>>>>>> @@ -198,6 +210,15 @@ sata@8,0 {
>>>>>> interrupt-parent = <&liointc0>;
>>>>>> };
>>>>>>
>>>>>> + display-controller@6,0 {
>>>>>> + compatible = "loongson,ls2k1000-dc";
>>>>>> +
>>>>>> + reg = <0x3000 0x0 0x0 0x0 0x0>;
>>>>>> + interrupts = <28 IRQ_TYPE_LEVEL_LOW>;
>>>>>> + interrupt-parent = <&liointc0>;
>>>>>> + memory-region = <&display_reserved>;
>>>>> NAK.
>>>> Err :(, please give me a chance to explain
>>>>> Test your code against the bindings you send.
>>>> I can guarantee to you that I test may code more than twice. The code
>>>> used to testing is listed at link [1].
>>> I wrote - test against the bindings. I don't believe that it was tested.
>>> Please paste the output of the testing (dtbs_check).
>> OTOH, dtschema has some hickups on loongsoon DTS, so I doubt you could
>> even test it. Anyway, where is above property memory-region described in
>> the bindings?
>
> Yes, you are right. I forget to write memory-region property.
>
> but the code provided in loongson64-2k1000.dtsi is correct.
>
> I do run dt_binding_check, the results seems good.
dt_binding_check checks the binding. We talk about your DTS.
>
> there are some problem when make dtbs_check, but it seems not relevant
> to me.
Yeah, the dtbs_check hash troubles with interrupt cells and it does not
give reasonable warning message.
Best regards,
Krzysztof
