diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c new file mode 100644 index 000000000000..9b16a08eb4d9 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c @@ -0,0 +1,36 @@ +/* + * Copyright 2018 Ilia Mirkin + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ilia Mirkin + */ +#include "hdmi.h" + +void +gm200_hdmi_scdc(struct nvkm_ior *ior, int head, u8 scdc) +{ + struct nvkm_device *device = ior->disp->engine.subdev.device; + const u32 hoff = head * 0x800; + const u32 ctrl = scdc & 0x3; + + nvkm_mask(device, 0x61c5bc + hoff, 0x00000003, ctrl); + + ior->tmds.high_speed = !!(scdc & 0x2); +} |