On 2020-01-09 10:20 a.m., Mario Kleiner wrote:
> read_current_link_settings_on_detect() on eDP 1.4+ may use the
> edp_supported_link_rates table which is set up by
> detect_edp_sink_caps(), so that function needs to be called first.
>
> Signed-off-by: Mario Kleiner <mario.kleiner.de@xxxxxxxxx>
> Cc: Martin Leung <martin.leung@xxxxxxx>
Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
This also fixes our assumption that retrieve_link_cap is the first DPCD
reads we perform during detection.
Harry
> ---
> drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 +-
> 1 file changed, 1 insertion(+), 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 cef8c1ba9797..5ea4a1675259 100644
> --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
> @@ -817,8 +817,8 @@ static bool dc_link_detect_helper(struct dc_link *link,
> }
>
> case SIGNAL_TYPE_EDP: {
> - read_current_link_settings_on_detect(link);
> detect_edp_sink_caps(link);
> + read_current_link_settings_on_detect(link);
> sink_caps.transaction_type = DDC_TRANSACTION_TYPE_I2C_OVER_AUX;
> sink_caps.signal = SIGNAL_TYPE_EDP;
> break;
>
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