Unverified Commit a649cc82 authored by Maxime Ripard's avatar Maxime Ripard
Browse files

drm/vc4: hdmi: Add full range RGB helper 



We're going to need to tell whether we want to run with a full or
limited range RGB output in multiple places in the code, so let's create
a helper that will return whether we need with full range or not.

Acked-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220120151625.594595-6-maxime@cerno.tech
parent c03d0b52

drivers/gpu/drm/vc4/vc4_hdmi.c

+10 −2
Original line number Diff line number Diff line
@@ -104,6 +104,15 @@ static bool vc4_hdmi_mode_needs_scrambling(const struct drm_display_mode *mode) 
	return (mode->clock * 1000) > HDMI_14_MAX_TMDS_CLK;

}



static bool vc4_hdmi_is_full_range_rgb(struct vc4_hdmi *vc4_hdmi,

				       const struct drm_display_mode *mode)

{

	struct vc4_hdmi_encoder *vc4_encoder = &vc4_hdmi->encoder;



	return !vc4_encoder->hdmi_monitor ||

		drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_FULL;

}



static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused)

{

	struct drm_info_node *node = (struct drm_info_node *)m->private;
@@ -1119,8 +1128,7 @@ static void vc4_hdmi_encoder_pre_crtc_enable(struct drm_encoder *encoder, 


	mutex_lock(&vc4_hdmi->mutex);



	if (vc4_encoder->hdmi_monitor &&

	    drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_LIMITED) {

	if (!vc4_hdmi_is_full_range_rgb(vc4_hdmi, mode)) {

		if (vc4_hdmi->variant->csc_setup)

			vc4_hdmi->variant->csc_setup(vc4_hdmi, true);