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path: root/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacgf119.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/dacgf119.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/disp/dacgf119.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacgf119.c
index 03a5bace661b..546fb6c99ab1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacgf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dacgf119.c
@@ -21,8 +21,27 @@
*/
#include "ior.h"
+static void
+gf119_dac_state(struct nvkm_ior *dac, struct nvkm_ior_state *state)
+{
+ struct nvkm_device *device = dac->disp->engine.subdev.device;
+ const u32 coff = (state == &dac->asy) * 0x20000 + dac->id * 0x20;
+ u32 ctrl = nvkm_rd32(device, 0x640180 + coff);
+
+ state->proto_evo = (ctrl & 0x00000f00) >> 8;
+ switch (state->proto_evo) {
+ case 0: state->proto = CRT; break;
+ default:
+ state->proto = UNKNOWN;
+ break;
+ }
+
+ state->head = ctrl & 0x0000000f;
+}
+
static const struct nvkm_ior_func
gf119_dac = {
+ .state = gf119_dac_state,
};
int
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