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.
there are some problem when make dtbs_check, but it seems not relevant
to me.
please give me more time to figure it out, i will reply to you later.
Best regards,
Krzysztof
