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drm/nouveau/i2c/g94-: increase NV_PMGR_DP_AUXCTL_TRANSACTREQ timeout

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[ Upstream commit 0156e76d388310a490aeb0f2fbb5b284ded3aecc ]

Tegra TRM says worst-case reply time is 1216us, and this should fix some
spurious timeouts that have been popping up.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ben Skeggs 2020-06-23 16:39:13 +10:00 committed by Greg Kroah-Hartman
parent fb50c5cf21
commit 0c1337e94a
2 changed files with 4 additions and 4 deletions
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4
drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
View File

@ -118,10 +118,10 @@ g94_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
if (retries)
udelay(400);
/* transaction request, wait up to 1ms for it to complete */
/* transaction request, wait up to 2ms for it to complete */
nvkm_wr32(device, 0x00e4e4 + base, 0x00010000 | ctrl);
timeout = 1000;
timeout = 2000;
do {
ctrl = nvkm_rd32(device, 0x00e4e4 + base);
udelay(1);

4
drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
View File

@ -118,10 +118,10 @@ gm200_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
if (retries)
udelay(400);
/* transaction request, wait up to 1ms for it to complete */
/* transaction request, wait up to 2ms for it to complete */
nvkm_wr32(device, 0x00d954 + base, 0x00010000 | ctrl);
timeout = 1000;
timeout = 2000;
do {
ctrl = nvkm_rd32(device, 0x00d954 + base);
udelay(1);