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| author | Ben Skeggs <bskeggs@redhat.com> | 2023-09-19 17:56:22 -0400 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2023-09-19 18:22:11 -0400 |
| commit | bd7a61bcbb50bfca1b9a585f17d5590dbb521b78 (patch) | |
| tree | ee22bd210445deeeb5a68bf8089d54ffc8ea4d0f /drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c | |
| parent | 0bd4e9f7dcd17003b7274b0608bf6575c6a07b88 (diff) | |
| download | linux-stable-bd7a61bcbb50bfca1b9a585f17d5590dbb521b78.tar.gz linux-stable-bd7a61bcbb50bfca1b9a585f17d5590dbb521b78.tar.bz2 linux-stable-bd7a61bcbb50bfca1b9a585f17d5590dbb521b78.zip | |
drm/nouveau/disp: add dp aux xfer method
- preparation for GSP-RM
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Acked-by: Danilo Krummrich <me@dakr.org>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230919220442.202488-28-lyude@redhat.com
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c index 99fe7ef07a44..49fbb32f5022 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c @@ -42,6 +42,19 @@ #define AMPERE_IED_HACK(disp) ((disp)->engine.subdev.device->card_type >= GA100) static int +nvkm_dp_aux_xfer(struct nvkm_outp *outp, u8 type, u32 addr, u8 *data, u8 *size) +{ + int ret = nvkm_i2c_aux_acquire(outp->dp.aux); + + if (ret) + return ret; + + ret = nvkm_i2c_aux_xfer(outp->dp.aux, false, type, addr, data, size); + nvkm_i2c_aux_release(outp->dp.aux); + return ret; +} + +static int nvkm_dp_aux_pwr(struct nvkm_outp *outp, bool pu) { outp->dp.enabled = pu; @@ -823,6 +836,7 @@ nvkm_dp_func = { .bl.get = nvkm_outp_bl_get, .bl.set = nvkm_outp_bl_set, .dp.aux_pwr = nvkm_dp_aux_pwr, + .dp.aux_xfer = nvkm_dp_aux_xfer, }; int |