[1/2] drm/dp: add extended receiver capability field present bit
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Message ID 20180717214939.32260-1-matthew.s.atwood@intel.com
State New
Headers show

Commit Message

Matt Atwood July 17, 2018, 9:49 p.m. UTC
From: Matt Atwood <matthew.s.atwood@intel.com>

This bit was added to DP Training Aux RD interval sometime between DP
1.2 and DP 1.3. Via description of the spec this field indicates the
panels true capabilities are described in DPCD address space 02200h
through 022FFh.

Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
---
 include/drm/drm_dp_helper.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Vivi, Rodrigo July 18, 2018, 10:36 p.m. UTC | #1
On Tue, Jul 17, 2018 at 02:49:38PM -0700, matthew.s.atwood@intel.com wrote:
> From: Matt Atwood <matthew.s.atwood@intel.com>
> 
> This bit was added to DP Training Aux RD interval sometime between DP
> 1.2 and DP 1.3. Via description of the spec this field indicates the
> panels true capabilities are described in DPCD address space 02200h
> through 022FFh.
> 
> Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
> ---
>  include/drm/drm_dp_helper.h | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> index c01564991a9f..757bd5913f3d 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -123,8 +123,9 @@
>  # define DP_FRAMING_CHANGE_CAP		    (1 << 1)
>  # define DP_DPCD_DISPLAY_CONTROL_CAPABLE     (1 << 3) /* edp v1.2 or higher */
>  
> -#define DP_TRAINING_AUX_RD_INTERVAL         0x00e   /* XXX 1.2? */
> -# define DP_TRAINING_AUX_RD_MASK            0x7F    /* XXX 1.2? */
> +#define DP_TRAINING_AUX_RD_INTERVAL             0x00e   /* XXX 1.2? */
> +# define DP_TRAINING_AUX_RD_MASK                0x7F    /* XXX 1.2? */
> +# define DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT (1 << 7)/* XXX 1.2? */

I couldn't find this on 1.2 version. So 1.3?!

>  
>  #define DP_ADAPTER_CAP			    0x00f   /* 1.2 */
>  # define DP_FORCE_LOAD_SENSE_CAP	    (1 << 0)
> -- 
> 2.17.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Patch
diff mbox

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index c01564991a9f..757bd5913f3d 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -123,8 +123,9 @@ 
 # define DP_FRAMING_CHANGE_CAP		    (1 << 1)
 # define DP_DPCD_DISPLAY_CONTROL_CAPABLE     (1 << 3) /* edp v1.2 or higher */
 
-#define DP_TRAINING_AUX_RD_INTERVAL         0x00e   /* XXX 1.2? */
-# define DP_TRAINING_AUX_RD_MASK            0x7F    /* XXX 1.2? */
+#define DP_TRAINING_AUX_RD_INTERVAL             0x00e   /* XXX 1.2? */
+# define DP_TRAINING_AUX_RD_MASK                0x7F    /* XXX 1.2? */
+# define DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT (1 << 7)/* XXX 1.2? */
 
 #define DP_ADAPTER_CAP			    0x00f   /* 1.2 */
 # define DP_FORCE_LOAD_SENSE_CAP	    (1 << 0)