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29 lines
999 B
Diff
29 lines
999 B
Diff
From 094f00cecb3d55917c1bc0e63a8b549627b108ad Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Thu, 21 Nov 2024 18:43:28 +0000
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Subject: [PATCH 556/697] drm/connector: hdmi: Attempt YUV422 output if RGB
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isn't supported
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Drop from RGB to YUV422 output if RGB couldn't be supported
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within the defined max_bpc and TMDS rates, and then try
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dropping max_bpc.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/display/drm_hdmi_state_helper.c | 5 +++++
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1 file changed, 5 insertions(+)
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--- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c
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+++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
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@@ -294,6 +294,11 @@ hdmi_compute_format(const struct drm_con
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return 0;
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}
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+ if (hdmi_try_format_bpc(connector, conn_state, mode, bpc, HDMI_COLORSPACE_YUV422)) {
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+ conn_state->hdmi.output_format = HDMI_COLORSPACE_YUV422;
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+ return 0;
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+ }
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+
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drm_dbg_kms(dev, "Failed. No Format Supported for that bpc count.\n");
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return -EINVAL;
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