From: Maxime Ripard <mripard@kernel.org>
To: "Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"David Airlie" <airlied@gmail.com>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Jonathan Corbet" <corbet@lwn.net>,
"Sandy Huang" <hjc@rock-chips.com>,
"Heiko Stübner" <heiko@sntech.de>, "Chen-Yu Tsai" <wens@csie.org>,
"Jernej Skrabec" <jernej.skrabec@gmail.com>,
"Samuel Holland" <samuel@sholland.org>,
"Andy Yan" <andy.yan@rock-chips.com>
Cc: "Hans Verkuil" <hverkuil@xs4all.nl>,
"Sebastian Wick" <sebastian.wick@redhat.com>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev,
"Maxime Ripard" <mripard@kernel.org>,
"Dave Stevenson" <dave.stevenson@raspberrypi.com>
Subject: [PATCH v13 19/28] drm/connector: hdmi: Add RGB Quantization Range to the connector state
Date: Tue, 07 May 2024 15:17:37 +0200 [thread overview]
Message-ID: <20240507-kms-hdmi-connector-state-v13-19-8fafc5efe8be@kernel.org> (raw)
In-Reply-To: <20240507-kms-hdmi-connector-state-v13-0-8fafc5efe8be@kernel.org>
HDMI controller drivers will need to figure out the RGB range they need
to configure based on a mode and property values. Let's expose that in
the HDMI connector state so drivers can just use that value.
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
drivers/gpu/drm/display/drm_hdmi_state_helper.c | 29 +++++++++++++++++++++++++
drivers/gpu/drm/drm_atomic.c | 1 +
include/drm/drm_connector.h | 6 +++++
3 files changed, 36 insertions(+)
diff --git a/drivers/gpu/drm/display/drm_hdmi_state_helper.c b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
index f038f567ab43..c3a10f9f7ecd 100644
--- a/drivers/gpu/drm/display/drm_hdmi_state_helper.c
+++ b/drivers/gpu/drm/display/drm_hdmi_state_helper.c
@@ -49,10 +49,37 @@ connector_state_get_mode(const struct drm_connector_state *conn_state)
return NULL;
return &crtc_state->mode;
}
+static bool hdmi_is_limited_range(const struct drm_connector *connector,
+ const struct drm_connector_state *conn_state)
+{
+ const struct drm_display_info *info = &connector->display_info;
+ const struct drm_display_mode *mode =
+ connector_state_get_mode(conn_state);
+
+ /*
+ * The Broadcast RGB property only applies to RGB format, and
+ * i915 just assumes limited range for YCbCr output, so let's
+ * just do the same.
+ */
+ if (conn_state->hdmi.output_format != HDMI_COLORSPACE_RGB)
+ return true;
+
+ if (conn_state->hdmi.broadcast_rgb == DRM_HDMI_BROADCAST_RGB_FULL)
+ return false;
+
+ if (conn_state->hdmi.broadcast_rgb == DRM_HDMI_BROADCAST_RGB_LIMITED)
+ return true;
+
+ if (!info->is_hdmi)
+ return false;
+
+ return drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_LIMITED;
+}
+
static bool
sink_supports_format_bpc(const struct drm_connector *connector,
const struct drm_display_info *info,
const struct drm_display_mode *mode,
unsigned int format, unsigned int bpc)
@@ -309,10 +336,12 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector,
drm_atomic_get_new_connector_state(state, connector);
const struct drm_display_mode *mode =
connector_state_get_mode(new_conn_state);
int ret;
+ new_conn_state->hdmi.is_limited_range = hdmi_is_limited_range(connector, new_conn_state);
+
ret = hdmi_compute_config(connector, new_conn_state, mode);
if (ret)
return ret;
if (old_conn_state->hdmi.broadcast_rgb != new_conn_state->hdmi.broadcast_rgb ||
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 3e57d98d8418..07b4b394e3bf 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1145,10 +1145,11 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) {
drm_printf(p, "\tbroadcast_rgb=%s\n",
drm_hdmi_connector_get_broadcast_rgb_name(state->hdmi.broadcast_rgb));
+ drm_printf(p, "\tis_limited_range=%c\n", state->hdmi.is_limited_range ? 'y' : 'n');
drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc);
drm_printf(p, "\toutput_format=%s\n",
drm_hdmi_connector_get_output_format_name(state->hdmi.output_format));
drm_printf(p, "\ttmds_char_rate=%llu\n", state->hdmi.tmds_char_rate);
}
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index a40eaf3a8ce4..1fca26d51218 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1068,10 +1068,16 @@ struct drm_connector_state {
* @broadcast_rgb: Connector property to pass the
* Broadcast RGB selection value.
*/
enum drm_hdmi_broadcast_rgb broadcast_rgb;
+ /**
+ * @is_full_range: Is the output supposed to use a full
+ * RGB Quantization Range or not?
+ */
+ bool is_limited_range;
+
/**
* @output_bpc: Bits per color channel to output.
*/
unsigned int output_bpc;
--
2.45.0
next prev parent reply other threads:[~2024-05-07 13:18 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-07 13:17 [PATCH v13 00/28] drm/connector: Create HDMI Connector infrastructure Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 01/28] drm/connector: Introduce an HDMI connector initialization function Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 02/28] drm/mode_object: Export drm_mode_obj_find_prop_id for tests Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 03/28] drm/tests: connector: Add tests for drmm_connector_hdmi_init Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 04/28] drm/connector: hdmi: Create an HDMI sub-state Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 05/28] drm/connector: hdmi: Add output BPC to the connector state Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 06/28] drm/tests: Add output bpc tests Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 07/28] drm/connector: hdmi: Add support for output format Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 08/28] drm/tests: Add output formats tests Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 09/28] drm/display: hdmi: Add HDMI compute clock helper Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 10/28] drm/tests: Add HDMI TDMS character rate tests Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 11/28] drm/connector: hdmi: Calculate TMDS character rate Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 12/28] drm/tests: Add TDMS character rate connector state tests Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 13/28] drm/connector: hdmi: Add custom hook to filter TMDS character rate Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 14/28] drm/tests: Add HDMI connector rate filter hook tests Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 15/28] drm/connector: hdmi: Compute bpc and format automatically Maxime Ripard
2024-05-12 8:18 ` Andy Yan
2024-05-16 9:45 ` [PATCH " Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 16/28] drm/tests: Add HDMI connector bpc and format tests Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 17/28] drm/connector: hdmi: Add Broadcast RGB property Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 18/28] drm/tests: Add tests for " Maxime Ripard
2024-05-07 13:17 ` Maxime Ripard [this message]
2024-05-07 13:17 ` [PATCH v13 20/28] drm/tests: Add RGB Quantization tests Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 21/28] drm/connector: hdmi: Add Infoframes generation Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 22/28] drm/tests: Add infoframes test Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 23/28] drm/connector: hdmi: Create Infoframe DebugFS entries Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 24/28] drm/vc4: hdmi: Switch to HDMI connector Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 25/28] drm/vc4: tests: Remove vc4_dummy_plane structure Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 26/28] drm/vc4: tests: Convert to plane creation helper Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 27/28] drm/rockchip: inno_hdmi: Switch to HDMI connector Maxime Ripard
2024-05-12 8:29 ` Andy Yan
2024-05-16 9:36 ` [PATCH " Maxime Ripard
2024-05-07 13:17 ` [PATCH v13 28/28] drm/sun4i: hdmi: " Maxime Ripard
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