diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c index 506ffbe7b842..6318721b66f6 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c @@ -182,11 +182,49 @@ gt215_sor_hdmi = { .infoframe_vsi = gt215_sor_hdmi_infoframe_vsi, }; +static int +gt215_sor_bl_set(struct nvkm_ior *ior, int lvl) +{ + struct nvkm_device *device = ior->disp->engine.subdev.device; + const u32 soff = nv50_ior_base(ior); + u32 div, val; + + div = nvkm_rd32(device, 0x61c080 + soff); + val = (lvl * div) / 100; + if (div) + nvkm_wr32(device, 0x61c084 + soff, 0xc0000000 | val); + + return 0; +} + +static int +gt215_sor_bl_get(struct nvkm_ior *ior) +{ + struct nvkm_device *device = ior->disp->engine.subdev.device; + const u32 soff = nv50_ior_base(ior); + u32 div, val; + + div = nvkm_rd32(device, 0x61c080 + soff); + val = nvkm_rd32(device, 0x61c084 + soff); + val &= 0x00ffffff; + if (div && div >= val) + return ((val * 100) + (div / 2)) / div; + + return 100; +} + +const struct nvkm_ior_func_bl +gt215_sor_bl = { + .get = gt215_sor_bl_get, + .set = gt215_sor_bl_set, +}; + static const struct nvkm_ior_func gt215_sor = { .state = g94_sor_state, .power = nv50_sor_power, .clock = nv50_sor_clock, + .bl = >215_sor_bl, .hdmi = >215_sor_hdmi, .dp = >215_sor_dp, .hda = >215_sor_hda, |