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- From 4809cf80fdd964c413045e550fb137a18dc98ba2 Mon Sep 17 00:00:00 2001
- From: Maxime Ripard <[email protected]>
- 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 <[email protected]>
- Signed-off-by: Maxime Ripard <[email protected]>
- ---
- 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;
- @@ -1117,8 +1126,7 @@ 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);
-
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