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 <suijingf...@loongson.cn> >>>>>> --- >>>>>> .../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