diff options
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_edid_load.c | 6 | ||||
| -rw-r--r-- | include/drm/drm_crtc.h | 3 |
3 files changed, 20 insertions, 11 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index acb489ff363..de2a0ed8e94 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -158,7 +158,7 @@ MODULE_PARM_DESC(edid_fixup, * Sanity check the EDID block (base or extension). Return 0 if the block * doesn't check out, or 1 if it's valid. */ -bool drm_edid_block_valid(u8 *raw_edid, int block) +bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid) { int i; u8 csum = 0; @@ -181,7 +181,9 @@ bool drm_edid_block_valid(u8 *raw_edid, int block) for (i = 0; i < EDID_LENGTH; i++) csum += raw_edid[i]; if (csum) { - DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum); + if (print_bad_edid) { + DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum); + } /* allow CEA to slide through, switches mangle this */ if (raw_edid[0] != 0x02) @@ -207,7 +209,7 @@ bool drm_edid_block_valid(u8 *raw_edid, int block) return 1; bad: - if (raw_edid) { + if (raw_edid && print_bad_edid) { printk(KERN_ERR "Raw EDID:\n"); print_hex_dump(KERN_ERR, " \t", DUMP_PREFIX_NONE, 16, 1, raw_edid, EDID_LENGTH, false); @@ -231,7 +233,7 @@ bool drm_edid_is_valid(struct edid *edid) return false; for (i = 0; i <= edid->extensions; i++) - if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i)) + if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i, true)) return false; return true; @@ -316,6 +318,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) { int i, j = 0, valid_extensions = 0; u8 *block, *new; + bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS); if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL) return NULL; @@ -324,7 +327,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) for (i = 0; i < 4; i++) { if (drm_do_probe_ddc_edid(adapter, block, 0, EDID_LENGTH)) goto out; - if (drm_edid_block_valid(block, 0)) + if (drm_edid_block_valid(block, 0, print_bad_edid)) break; if (i == 0 && drm_edid_is_zero(block, EDID_LENGTH)) { connector->null_edid_counter++; @@ -349,7 +352,7 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) block + (valid_extensions + 1) * EDID_LENGTH, j, EDID_LENGTH)) goto out; - if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j)) { + if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH, j, print_bad_edid)) { valid_extensions++; break; } @@ -372,8 +375,11 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) return block; carp: - dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n", - drm_get_connector_name(connector), j); + if (print_bad_edid) { + dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n", + drm_get_connector_name(connector), j); + } + connector->bad_edid_counter++; out: kfree(block); diff --git a/drivers/gpu/drm/drm_edid_load.c b/drivers/gpu/drm/drm_edid_load.c index 186832e1874..ea9cdab3d43 100644 --- a/drivers/gpu/drm/drm_edid_load.c +++ b/drivers/gpu/drm/drm_edid_load.c @@ -123,6 +123,7 @@ static u8 *edid_load(struct drm_connector *connector, char *name, int fwsize, expected; int builtin = 0, err = 0; int i, valid_extensions = 0; + bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS); pdev = platform_device_register_simple(connector_name, -1, NULL, 0); if (IS_ERR(pdev)) { @@ -173,7 +174,8 @@ static u8 *edid_load(struct drm_connector *connector, char *name, } memcpy(edid, fwdata, fwsize); - if (!drm_edid_block_valid(edid, 0)) { + if (!drm_edid_block_valid(edid, 0, print_bad_edid)) { + connector->bad_edid_counter++; DRM_ERROR("Base block of EDID firmware \"%s\" is invalid ", name); kfree(edid); @@ -185,7 +187,7 @@ static u8 *edid_load(struct drm_connector *connector, char *name, if (i != valid_extensions + 1) memcpy(edid + (valid_extensions + 1) * EDID_LENGTH, edid + i * EDID_LENGTH, EDID_LENGTH); - if (drm_edid_block_valid(edid + i * EDID_LENGTH, i)) + if (drm_edid_block_valid(edid + i * EDID_LENGTH, i, print_bad_edid)) valid_extensions++; } diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 617d87ae2b1..316ce64e559 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -590,6 +590,7 @@ struct drm_connector { int video_latency[2]; /* [0]: progressive, [1]: interlaced */ int audio_latency[2]; int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */ + unsigned bad_edid_counter; }; /** @@ -1032,7 +1033,7 @@ extern int drm_add_modes_noedid(struct drm_connector *connector, int hdisplay, int vdisplay); extern int drm_edid_header_is_valid(const u8 *raw_edid); -extern bool drm_edid_block_valid(u8 *raw_edid, int block); +extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid); extern bool drm_edid_is_valid(struct edid *edid); struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, int hsize, int vsize, int fresh, |