diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/bios/iccsense.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/bios/iccsense.c | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/iccsense.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/iccsense.c index 0843280..3953d11 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/iccsense.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/iccsense.c @@ -23,20 +23,21 @@ */ #include <subdev/bios.h> #include <subdev/bios/bit.h> +#include <subdev/bios/extdev.h> #include <subdev/bios/iccsense.h> -static u16 +static u32 nvbios_iccsense_table(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) { struct bit_entry bit_P; - u16 iccsense; + u32 iccsense; if (bit_entry(bios, 'P', &bit_P) || bit_P.version != 2 || bit_P.length < 0x2c) return 0; - iccsense = nvbios_rd16(bios, bit_P.offset + 0x28); + iccsense = nvbios_rd32(bios, bit_P.offset + 0x28); if (!iccsense) return 0; @@ -60,7 +61,7 @@ nvbios_iccsense_parse(struct nvkm_bios *bios, struct nvbios_iccsense *iccsense) { struct nvkm_subdev *subdev = &bios->subdev; u8 ver, hdr, cnt, len, i; - u16 table, entry; + u32 table, entry; table = nvbios_iccsense_table(bios, &ver, &hdr, &cnt, &len); if (!table || !cnt) @@ -77,23 +78,47 @@ nvbios_iccsense_parse(struct nvkm_bios *bios, struct nvbios_iccsense *iccsense) return -ENOMEM; for (i = 0; i < cnt; ++i) { + struct nvbios_extdev_func extdev; struct pwr_rail_t *rail = &iccsense->rail[i]; + u8 res_start = 0; + int r; + entry = table + hdr + i * len; switch(ver) { case 0x10: rail->mode = nvbios_rd08(bios, entry + 0x1); rail->extdev_id = nvbios_rd08(bios, entry + 0x2); - rail->resistor_mohm = nvbios_rd08(bios, entry + 0x3); - rail->rail = nvbios_rd08(bios, entry + 0x4); + res_start = 0x3; break; case 0x20: rail->mode = nvbios_rd08(bios, entry); rail->extdev_id = nvbios_rd08(bios, entry + 0x1); - rail->resistor_mohm = nvbios_rd08(bios, entry + 0x5); - rail->rail = nvbios_rd08(bios, entry + 0x6); + res_start = 0x5; + break; + }; + + if (nvbios_extdev_parse(bios, rail->extdev_id, &extdev)) + continue; + + switch (extdev.type) { + case NVBIOS_EXTDEV_INA209: + case NVBIOS_EXTDEV_INA219: + rail->resistor_count = 1; + break; + case NVBIOS_EXTDEV_INA3221: + rail->resistor_count = 3; + break; + default: + rail->resistor_count = 0; break; }; + + for (r = 0; r < rail->resistor_count; ++r) { + rail->resistors[r].mohm = nvbios_rd08(bios, entry + res_start + r * 2); + rail->resistors[r].enabled = !(nvbios_rd08(bios, entry + res_start + r * 2 + 1) & 0x40); + } + rail->config = nvbios_rd16(bios, entry + res_start + rail->resistor_count * 2); } return 0; |
