diff mbox

drm/edid: rename macro for CEA extended-tag

Message ID 1499084743-24257-1-git-send-email-shashank.sharma@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sharma, Shashank July 3, 2017, 12:25 p.m. UTC
CEA-861-F introduces extended tag codes for EDID extension blocks,
which indicates the actual type of the data block. The code for
using exteded tag is 0x7, whereas in the existing code, the
corresponding macro is named as "VIDEO_CAPABILITY_BLOCK"

This patch renames the macro and usages from "VIDEO_CAPABILITY_BLOCK"
to "CEA_EXTENDED_TAG"

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
---
 drivers/gpu/drm/drm_edid.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Ville Syrjälä July 3, 2017, 12:45 p.m. UTC | #1
On Mon, Jul 03, 2017 at 05:55:43PM +0530, Shashank Sharma wrote:
> CEA-861-F introduces extended tag codes for EDID extension blocks,
> which indicates the actual type of the data block. The code for
> using exteded tag is 0x7, whereas in the existing code, the
> corresponding macro is named as "VIDEO_CAPABILITY_BLOCK"
> 
> This patch renames the macro and usages from "VIDEO_CAPABILITY_BLOCK"
> to "CEA_EXTENDED_TAG"
> 
> Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
> Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
> ---
>  drivers/gpu/drm/drm_edid.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index 2e55599..c81b076 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -2566,7 +2566,7 @@ add_detailed_modes(struct drm_connector *connector, struct edid *edid,
>  #define VIDEO_BLOCK     0x02
>  #define VENDOR_BLOCK    0x03
>  #define SPEAKER_BLOCK	0x04
> -#define VIDEO_CAPABILITY_BLOCK	0x07
> +#define CEA_EXTENDED_TAG	0x07
>  #define EDID_BASIC_AUDIO	(1 << 6)
>  #define EDID_CEA_YCRCB444	(1 << 5)
>  #define EDID_CEA_YCRCB422	(1 << 4)
> @@ -3793,7 +3793,7 @@ bool drm_rgb_quant_range_selectable(struct edid *edid)
>  		return false;
>  
>  	for_each_cea_db(edid_ext, i, start, end) {
> -		if (cea_db_tag(&edid_ext[i]) == VIDEO_CAPABILITY_BLOCK &&
> +		if (cea_db_tag(&edid_ext[i]) == CEA_EXTENDED_TAG &&
>  		    cea_db_payload_len(&edid_ext[i]) == 2) {

The video capability block should have a specific ext tag no? We should
check for that.

>  			DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", edid_ext[i + 2]);
>  			return edid_ext[i + 2] & EDID_CEA_VCDB_QS;
> -- 
> 2.7.4
diff mbox

Patch

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 2e55599..c81b076 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -2566,7 +2566,7 @@  add_detailed_modes(struct drm_connector *connector, struct edid *edid,
 #define VIDEO_BLOCK     0x02
 #define VENDOR_BLOCK    0x03
 #define SPEAKER_BLOCK	0x04
-#define VIDEO_CAPABILITY_BLOCK	0x07
+#define CEA_EXTENDED_TAG	0x07
 #define EDID_BASIC_AUDIO	(1 << 6)
 #define EDID_CEA_YCRCB444	(1 << 5)
 #define EDID_CEA_YCRCB422	(1 << 4)
@@ -3793,7 +3793,7 @@  bool drm_rgb_quant_range_selectable(struct edid *edid)
 		return false;
 
 	for_each_cea_db(edid_ext, i, start, end) {
-		if (cea_db_tag(&edid_ext[i]) == VIDEO_CAPABILITY_BLOCK &&
+		if (cea_db_tag(&edid_ext[i]) == CEA_EXTENDED_TAG &&
 		    cea_db_payload_len(&edid_ext[i]) == 2) {
 			DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", edid_ext[i + 2]);
 			return edid_ext[i + 2] & EDID_CEA_VCDB_QS;