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drm/amd/display: fix missing pixel clock adjustment for dongle

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Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Reviewed-by: Andrew Jiang <Andrew.Jiang@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Yang 2017-11-10 10:44:24 -05:00 committed by Alex Deucher
parent f23d558466
commit 73da927b08
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/amd/display/dc/core/dc_link.c
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@ -1801,7 +1801,7 @@ static void disable_link(struct dc_link *link, enum signal_type signal)
link->link_enc->funcs->disable_output(link->link_enc, signal);
}
bool dp_active_dongle_validate_timing(
static bool dp_active_dongle_validate_timing(
const struct dc_crtc_timing *timing,
const struct dc_dongle_caps *dongle_caps)
{
@ -1833,6 +1833,8 @@ bool dp_active_dongle_validate_timing(
/* Check Color Depth and Pixel Clock */
if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)
required_pix_clk /= 2;
else if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422)
required_pix_clk = required_pix_clk * 2 / 3;
switch (timing->display_color_depth) {
case COLOR_DEPTH_666: