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drm/nouveau/disp/dp: gm1xx appears to have same dp lane ordering as gm2xx 

Fixes 2-lane DP on Quadro K620.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2015-08-21 13:38:31 +10:00
parent fe0f5d0880
commit 2a89359415
3 changed files with 7 additions and 10 deletions
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1
drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
View File

@ -214,6 +214,7 @@ extern struct nvkm_output_dp_impl nv50_pior_dp_impl;
extern struct nvkm_oclass *nv50_disp_outp_sclass[];
extern struct nvkm_output_dp_impl g94_sor_dp_impl;
u32 g94_sor_dp_lane_map(struct nv50_disp_priv *, u8 lane);
int g94_sor_dp_lnk_pwr(struct nvkm_output_dp *, int);
extern struct nvkm_oclass *g94_disp_outp_sclass[];

5
drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c
View File

@ -39,11 +39,14 @@ g94_sor_loff(struct nvkm_output_dp *outp)
return g94_sor_soff(outp) + !(outp->base.info.sorconf.link & 1) * 0x80;
}
static inline u32
u32
g94_sor_dp_lane_map(struct nv50_disp_priv *priv, u8 lane)
{
static const u8 gm100[] = { 0, 8, 16, 24 };
static const u8 mcp89[] = { 24, 16, 8, 0 }; /* thanks, apple.. */
static const u8 g94[] = { 16, 8, 0, 24 };
if (nv_device(priv)->chipset >= 0x110)
return gm100[lane];
if (nv_device(priv)->chipset == 0xaf)
return mcp89[lane];
return g94[lane];

9
drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf110.c
View File

@ -36,13 +36,6 @@ gf110_sor_loff(struct nvkm_output_dp *outp)
return gf110_sor_soff(outp) + !(outp->base.info.sorconf.link & 1) * 0x80;
}
static inline u32
gf110_sor_dp_lane_map(struct nv50_disp_priv *priv, u8 lane)
{
static const u8 gf110[] = { 16, 8, 0, 24 };
return gf110[lane];
}
static int
gf110_sor_dp_pattern(struct nvkm_output_dp *outp, int pattern)
{
@ -77,7 +70,7 @@ gf110_sor_dp_drv_ctl(struct nvkm_output_dp *outp,
{
struct nv50_disp_priv *priv = (void *)nvkm_disp(outp);
struct nvkm_bios *bios = nvkm_bios(priv);
const u32 shift = gf110_sor_dp_lane_map(priv, ln);
const u32 shift = g94_sor_dp_lane_map(priv, ln);
const u32 loff = gf110_sor_loff(outp);
u32 addr, data[4];
u8 ver, hdr, cnt, len;