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From: Jani Nikula <jani.nikula@linux.intel.com>
To: Anusha Srivatsa <anusha.srivatsa@intel.com>,
	intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm: Add DPCD definitions for DP 1.4 FEC feature
Date: Thu, 23 Nov 2017 09:15:24 +0200	[thread overview]
Message-ID: <87ine1tqib.fsf@intel.com> (raw)
In-Reply-To: <1511387341-10857-1-git-send-email-anusha.srivatsa@intel.com>

On Wed, 22 Nov 2017, Anusha Srivatsa <anusha.srivatsa@intel.com> wrote:
> Forward Error Correction is supported on DP 1.4.
> This patch adds corresponding DPCD register definitions.

Needs to be posted on dri-devel.

BR,
Jani.


>
> Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
> Cc: Jani Nikula <jani.nikula@linux.intel.com>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
> ---
>  include/drm/drm_dp_helper.h | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
>
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> index 9049ef1..b0eee16 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -284,6 +284,35 @@
>  # define DP_DSC_BITS_PER_PIXEL_1_2          0x3
>  # define DP_DSC_BITS_PER_PIXEL_1            0x4
>  
> +/* DP Forward error Correction Registers */
> +#define DP_FEC_CAPABILITY		    0x090
> +# define DP_FEC_CAPABLE			    (1 << 0)
> +# define DP_FEC_UNCORR_BLK_ERROR_COUNT_CAP  (1 << 1)
> +# define DP_FEC_CORR_BLK_ERROR_COUNT_CAP    (1 << 2)
> +# define DP_FEC_BIT_ERROR_COUNT_CAP	    (1 << 3)
> +
> +#define DP_FEC_CONFIGURATION		    0x120
> +# define DP_FEC_READY			    (1 << 0)
> +# define DP_FEC_ERR_COUNT_DIS		    (0 << 1)
> +# define DP_FEC_UNCORR_BLK_ERROR_COUNT	    (1 << 1)
> +# define DP_FEC_CORR_BLK_ERROR_COUNT	    (2 << 1)
> +# define DP_FEC_BIT_ERROR_COUNT		    (3 << 1)
> +# define DP_FEC_LANE_0_SELECT		    (0 << 4)
> +# define DP_FEC_LANE_1_SELECT		    (1 << 4)
> +# define DP_FEC_LANE_2_SELECT		    (2 << 4)
> +# define DP_FEC_LANE_3_SELECT		    (3 << 4)
> +
> +#define DP_FEC_STATUS			    0x280
> +# define DP_FEC_EN_DETECTED		    (1 << 0)
> +# define DP_FEC_DEC_DETECTED		    (1 << 1)
> +
> +#define DP_FEC_ERROR_COUNT_1		    0x0281
> +# define DP_FEC_ERR_COUNT_7_0(err_count)    (err_count << 0)
> +
> +#define DP_FEC_ERROR_COUNT_2		    0x0282
> +# define DP_FEC_ERR_COUNT_14_8(err_count)   (err_count << 0)
> +# define DP_FEC_ERR_COUNT_VALID		    (1 << 7)
> +
>  #define DP_PSR_SUPPORT                      0x070   /* XXX 1.2? */
>  # define DP_PSR_IS_SUPPORTED                1
>  # define DP_PSR2_IS_SUPPORTED		    2	    /* eDP 1.4 */

-- 
Jani Nikula, Intel Open Source Technology Center
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  parent reply	other threads:[~2017-11-23  7:15 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-22 21:49 [PATCH] drm: Add DPCD definitions for DP 1.4 FEC feature Anusha Srivatsa
2017-11-22 22:29 ` ✓ Fi.CI.BAT: success for " Patchwork
2017-11-22 23:32 ` ✓ Fi.CI.IGT: " Patchwork
2017-11-23  7:15 ` Jani Nikula [this message]
2017-11-28  0:59   ` [PATCH] " Srivatsa, Anusha
  -- strict thread matches above, loose matches on Subject: below --
2017-11-28  0:55 Anusha Srivatsa
2017-12-21 20:36 ` Manasi Navare
2017-12-21 20:51   ` Srivatsa, Anusha
2017-12-22 22:02 Anusha Srivatsa
2017-12-22 23:39 ` Manasi Navare
2018-02-14  7:59 Anusha Srivatsa
2018-02-14 11:59 ` Jani Nikula
2018-02-14 19:28 ` Anusha Srivatsa
2018-02-15 13:53   ` Jani Nikula

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