From cf0912924fd799028470bb1ccccf4928c1cbc7a9 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 21 Dec 2015 09:27:49 +1000 Subject: [PATCH] drm/nouveau/bios: parse 8.1 Gbps DP link rate From DCB 4.1 spec. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c index 8304b806f2a6..a8d5d67feeaf 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/dcb.c @@ -143,16 +143,19 @@ dcb_outp_parse(struct nvkm_bios *bios, u8 idx, u8 *ver, u8 *len, switch (outp->type) { case DCB_OUTPUT_DP: switch (conf & 0x00e00000) { - case 0x00000000: + case 0x00000000: /* 1.62 */ outp->dpconf.link_bw = 0x06; break; - case 0x00200000: + case 0x00200000: /* 2.7 */ outp->dpconf.link_bw = 0x0a; break; - case 0x00400000: - default: + case 0x00400000: /* 5.4 */ outp->dpconf.link_bw = 0x14; break; + case 0x00600000: /* 8.1 */ + default: + outp->dpconf.link_bw = 0x1e; + break; } switch ((conf & 0x0f000000) >> 24) { -- 2.20.1