From 4809cf80fdd964c413045e550fb137a18dc98ba2 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Tue, 12 Jan 2021 15:55:07 +0100 Subject: [PATCH] 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: Thomas Zimmermann Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_hdmi.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -108,6 +108,15 @@ static bool vc4_hdmi_mode_needs_scrambli 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; @@ -1116,8 +1125,7 @@ static void vc4_hdmi_encoder_pre_crtc_en 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);