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SubjectRE: [PATCH] drm: Add FEC registers for LT-tunable repeaters
Date


> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces@lists.freedesktop.org> On Behalf Of
> Rodrigo Siqueira
> Sent: 2019/December/05, Thursday 8:59 AM
> To: =dri-devel@lists.freedesktop.org; linux-kernel@vger.kernel.org; amd-
> gfx@lists.freedesktop.org
> Cc: Li, Sun peng (Leo) <Sunpeng.Li@amd.com>; Berthe, Abdoulaye
> <Abdoulaye.Berthe@amd.com>; Jani Nikula <jani.nikula@linux.intel.com>;
> Cornij, Nikola <Nikola.Cornij@amd.com>; Manasi Navare
> <manasi.d.navare@intel.com>; Wentland, Harry
> <Harry.Wentland@amd.com>; Ville Syrjälä <ville.syrjala@linux.intel.com>
> Subject: [PATCH] drm: Add FEC registers for LT-tunable repeaters
>
> FEC is supported since DP 1.4, and it was expanded for LT-tunable in DP 1.4a.
> This commit adds the address registers for
> FEC_ERROR_COUNT_PHY_REPEATER1 and
> FEC_CAPABILITY_PHY_REPEATER1.
>
> Cc: Abdoulaye Berthe <Abdoulaye.Berthe@amd.com>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Leo Li <sunpeng.li@amd.com>
> Cc: Jani Nikula <jani.nikula@linux.intel.com>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Abdoulaye Berthe <Abdoulaye.Berthe@amd.com>
> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>

Looks good to me.
Reviewed-by: Zhan Liu <zhan.liu@amd.com>

> ---
> include/drm/drm_dp_helper.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> index 51ecb5112ef8..b2057009aabc 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -1042,6 +1042,8 @@
> #define DP_SYMBOL_ERROR_COUNT_LANE2_PHY_REPEATER1
> 0xf0039 /* 1.3 */
> #define DP_SYMBOL_ERROR_COUNT_LANE3_PHY_REPEATER1
> 0xf003b /* 1.3 */
> #define DP_FEC_STATUS_PHY_REPEATER1 0xf0290 /*
> 1.4 */
> +#define DP_FEC_ERROR_COUNT_PHY_REPEATER1 0xf0291 /*
> 1.4 */
> +#define DP_FEC_CAPABILITY_PHY_REPEATER1 0xf0294 /* 1.4a
> */
>
> /* Repeater modes */
> #define DP_PHY_REPEATER_MODE_TRANSPARENT 0x55 /*
> 1.3 */
> --
> 2.24.0
>
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