drm/vc4: Calculate bpc based on max_requested_bpc
This aligns vc4 with Intel, AMD and Synopsis drivers and fixes max bpc connector property not working as expected on monitors with YCbCr 4:2:2 support but not deep color support. max_bpc in connector state is clamped at max_bpc from display info and the latter only takes deep color modes into account so it will always be 8, even if the display can do 4:2:2 12-bit output. Signed-off-by: Matthias Reichl <hias@horus.com>
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@ -2124,7 +2124,7 @@ vc4_hdmi_encoder_compute_config(const struct vc4_hdmi *vc4_hdmi,
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{
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struct drm_device *dev = vc4_hdmi->connector.dev;
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struct drm_connector_state *conn_state = &vc4_state->base;
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unsigned int max_bpc = clamp_t(unsigned int, conn_state->max_bpc, 8, 12);
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unsigned int max_bpc = clamp_t(unsigned int, conn_state->max_requested_bpc, 8, 12);
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unsigned int bpc;
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int ret;
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