[PATCH 5/5] drm/amd/display: Allow HDMI capabilities over DVI connector (DC)

[Harry Wentland]

On 2017-02-24 07:14 PM, Jeff Smith wrote:
> Signed-off-by: Jeff Smith <whydoubt at gmail.com>
> ---
>  drivers/gpu/drm/amd/display/dc/core/dc_link.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> index 2b92939..168f260 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> @@ -706,8 +706,13 @@ bool dc_link_detect(const struct dc_link *dc_link, bool boot)
>
>  		/* HDMI-DVI Dongle */
>  		if (dc_sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A &&
> -				!dc_sink->edid_caps.edid_hdmi)
> +				!dc_sink->edid_caps.edid_hdmi) {
>  			dc_sink->sink_signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
> +		} else if ((dc_sink->sink_signal == SIGNAL_TYPE_DVI_SINGLE_LINK ||
> +				dc_sink->sink_signal == SIGNAL_TYPE_DVI_DUAL_LINK) &&
> +				dc_sink->edid_caps.edid_hdmi) {
> +			dc_sink->sink_signal = SIGNAL_TYPE_HDMI_TYPE_A;
> +		}

This won't pass HDMI compliance.

Harry

>
>  		/* Connectivity log: detection */
>  		for (i = 0; i < sink->public.dc_edid.length / EDID_BLOCK_SIZE; i++) {
>