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| author | Guillaume Clement <gclement@baobob.org> | 2013-08-10 07:06:04 (GMT) |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-08-22 00:37:49 (GMT) |
| commit | 6f1e120438144a47463b80c3e113334a6bd0e77c (patch) | |
| tree | 8422c3de7e02cf57ea97295fd92a2d415ecff358 | |
| parent | 317b07b58c4312358410bf9b50dc7baeda9ed833 (diff) | |
| download | linux-6f1e120438144a47463b80c3e113334a6bd0e77c.tar.xz | |
gma500: Fix SDVO turning off randomly
Some Poulsbo cards seem to incorrectly report SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED instead of SDVO_CMD_STATUS_PENDING, which causes the display to be turned off.
Signed-off-by: Guillaume Clement <gclement@baobob.org>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/gma500/psb_intel_sdvo.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c index 19e3660..3bc84145 100644 --- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c +++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c @@ -500,7 +500,8 @@ static bool psb_intel_sdvo_read_response(struct psb_intel_sdvo *psb_intel_sdvo, &status)) goto log_fail; - while (status == SDVO_CMD_STATUS_PENDING && retry--) { + while ((status == SDVO_CMD_STATUS_PENDING || + status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && retry--) { udelay(15); if (!psb_intel_sdvo_read_byte(psb_intel_sdvo, SDVO_I2C_CMD_STATUS, |