diff options
author | Anton Vorontsov <cbouatmailru@gmail.com> | 2010-04-26 21:56:19 +0400 |
---|---|---|
committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2010-04-26 21:56:19 +0400 |
commit | 8ef1bb539203629f77a61976e4f25415e1083bff (patch) | |
tree | 4fee25aca0928f112716fb02d27b1b355d0843b4 /drivers/gpu/drm/nouveau/nouveau_dp.c | |
parent | a3bcbbee83f55cbaec9b2ad748e7300c7feb2192 (diff) | |
parent | b91ce4d14a21fc04d165be30319541e0f9204f15 (diff) | |
download | kernel_samsung_smdk4412-8ef1bb539203629f77a61976e4f25415e1083bff.zip kernel_samsung_smdk4412-8ef1bb539203629f77a61976e4f25415e1083bff.tar.gz kernel_samsung_smdk4412-8ef1bb539203629f77a61976e4f25415e1083bff.tar.bz2 |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_dp.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_dp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c index f954ad9..deeb21c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dp.c +++ b/drivers/gpu/drm/nouveau/nouveau_dp.c @@ -483,7 +483,7 @@ nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr, ctrl |= (cmd << NV50_AUXCH_CTRL_CMD_SHIFT); ctrl |= ((data_nr - 1) << NV50_AUXCH_CTRL_LEN_SHIFT); - for (;;) { + for (i = 0; i < 16; i++) { nv_wr32(dev, NV50_AUXCH_CTRL(index), ctrl | 0x80000000); nv_wr32(dev, NV50_AUXCH_CTRL(index), ctrl); nv_wr32(dev, NV50_AUXCH_CTRL(index), ctrl | 0x00010000); @@ -502,6 +502,12 @@ nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr, break; } + if (i == 16) { + NV_ERROR(dev, "auxch DEFER too many times, bailing\n"); + ret = -EREMOTEIO; + goto out; + } + if (cmd & 1) { if ((stat & NV50_AUXCH_STAT_COUNT) != data_nr) { ret = -EREMOTEIO; |