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SubjectRe: [PATCH] drm: Add LT-tunable PHY repeater mode operations
Date
On 2019-10-15 9:40 a.m., Siqueira, Rodrigo wrote:
> LT-tunable PHY Repeaters can operate in two different modes: transparent
> (default) and non-transparent. The value 0x55 specifies the transparent
> mode, and 0xaa represents the non-transparent; this commit adds these
> two values as definitions.
>
> 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>

Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Harry

> ---
> include/drm/drm_dp_helper.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> index bf62b43aaf2b..cfadeeef8492 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -1034,6 +1034,10 @@
> #define DP_SYMBOL_ERROR_COUNT_LANE3_PHY_REPEATER1 0xf003b /* 1.3 */
> #define DP_FEC_STATUS_PHY_REPEATER1 0xf0290 /* 1.4 */
>
> +/* Repeater modes */
> +#define DP_PHY_REPEATER_MODE_TRANSPARENT 0x55 /* 1.3 */
> +#define DP_PHY_REPEATER_MODE_NON_TRANSPARENT 0xaa /* 1.3 */
> +
> /* DP HDCP message start offsets in DPCD address space */
> #define DP_HDCP_2_2_AKE_INIT_OFFSET DP_HDCP_2_2_REG_RTX_OFFSET
> #define DP_HDCP_2_2_AKE_SEND_CERT_OFFSET DP_HDCP_2_2_REG_CERT_RX_OFFSET
>

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