修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/drivers/gpu/drm/nouveau/nvkm/engine/disp/coregf119.c
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@@ -182,6 +182,8 @@
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 		nvkm_error(subdev, "core fini: %08x\n",
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 			   nvkm_rd32(device, 0x610490));
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 	}
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+
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+	chan->suspend_put = nvkm_rd32(device, 0x640000);
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 }
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 static int
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@@ -195,7 +197,7 @@
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 	nvkm_wr32(device, 0x610498, 0x00010000);
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 	nvkm_wr32(device, 0x61049c, 0x00000001);
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 	nvkm_mask(device, 0x610490, 0x00000010, 0x00000010);
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-	nvkm_wr32(device, 0x640000, 0x00000000);
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+	nvkm_wr32(device, 0x640000, chan->suspend_put);
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 	nvkm_wr32(device, 0x610490, 0x01000013);
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 	/* wait for it to go inactive */