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).
>
> This patchset mainly used to illustrate how we made the driver in [1]
> usable on our SoC platform.
>
>> It's the same
>> patchset. You basically send something which the same moment is incorrect.
>
> Loongson display controller IP has been integrated in both Loongson
> North Bridge chipset(ls7a1000 and ls7a2000) and Loongson SoCs(ls2k1000
> and ls2k2000 etc), it even has been included in Loongson BMC(ls2k0500 bmc)
> products.
I don't understand how your reply here is relevant to incorrect bindings
or incorrect DTS according to bindings.
Best regards,
Krzysztof
