diff options
| author | Jens Axboe <jaxboe@fusionio.com> | 2011-07-01 18:17:13 +0400 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-07-01 18:17:13 +0400 |
| commit | 04bf7869ca0fd12009aee301cac2264a36df4d98 (patch) | |
| tree | 66cb81ebf8b76560a31433c2c493dc430c914af9 /drivers/gpu/drm/drm_edid.c | |
| parent | d2f31a5fd60d168b00fc4f7617b68a1287b21e90 (diff) | |
| parent | 7b28afe01ab6ffb5f152f47831b44933facd2328 (diff) | |
| download | linux-04bf7869ca0fd12009aee301cac2264a36df4d98.tar.xz | |
Merge branch 'for-linus' into for-3.1/core
Conflicts:
block/blk-throttle.c
block/cfq-iosched.c
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 0a9357c66ff8..09292193dafe 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -184,9 +184,9 @@ drm_edid_block_valid(u8 *raw_edid) bad: if (raw_edid) { - DRM_ERROR("Raw EDID:\n"); + printk(KERN_ERR "Raw EDID:\n"); print_hex_dump_bytes(KERN_ERR, DUMP_PREFIX_NONE, raw_edid, EDID_LENGTH); - printk("\n"); + printk(KERN_ERR "\n"); } return 0; } @@ -258,6 +258,17 @@ drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf, return ret == 2 ? 0 : -1; } +static bool drm_edid_is_zero(u8 *in_edid, int length) +{ + int i; + u32 *raw_edid = (u32 *)in_edid; + + for (i = 0; i < length / 4; i++) + if (*(raw_edid + i) != 0) + return false; + return true; +} + static u8 * drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) { @@ -273,6 +284,10 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) goto out; if (drm_edid_block_valid(block)) break; + if (i == 0 && drm_edid_is_zero(block, EDID_LENGTH)) { + connector->null_edid_counter++; + goto carp; + } } if (i == 4) goto carp; |