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h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=aPgnXpLoSCS2gXcpPVgwke7qp7T1PP/zCXkyxxHo2b7zb/PNAAONXihB3n9gC8+Fb 7ZidSY6HBhFPB0ncdnw6G32kzBeiAss+Yt3ZabzypK1z/fdhydvGbiWPiOmE/tNT6O u1tC5R74Lkn+sHE/F5pQDY9KN9FEp4HWD3SQaMo4vd4+5YTsrAWSWkCGJOeOz+XRs8 KXiYk86sxtnQ8CpgH3uj3J3+vCvPl2oczkZUHbJBmEIPWDUuBcgZOkOt5O1/OVNDej qU7s8pUnJgHIqwBMbAINyWMZoKiQtvjDgANKfIRgh6R2nDE28aLySfBsEv4sTo6LQU us3guei4uAmRA== From: Maxime Ripard Date: Mon, 12 Feb 2024 14:12:54 +0100 Subject: [PATCH v6 11/36] drm/connector: hdmi: Add RGB Quantization Range to the connector state MIME-Version: 1.0 Message-Id: <20240212-kms-hdmi-connector-state-v6-11-f4bcdc979e6f@kernel.org> References: <20240212-kms-hdmi-connector-state-v6-0-f4bcdc979e6f@kernel.org> In-Reply-To: <20240212-kms-hdmi-connector-state-v6-0-f4bcdc979e6f@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Emma Anholt , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: Hans Verkuil , 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 , Dave Stevenson X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=4240; i=mripard@kernel.org; h=from:subject:message-id; bh=Uci5nUWFbopiU9JwFehIK0RWTdqj3fqfRO4WqS8ziZg=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDKmnJFNndfSHrv3wft5BQ9s3BpPOTZI5cv3VmQ77bxPWe /88MumUeUcpC4MYF4OsmCJLjLD5krhTs153svHNg5nDygQyhIGLUwAm0vSd4X/wY3afGnM+MR6V 5dKeD3v/+yeI6TKu37T4dpDS4gDPn1KMDFt0tmRPcgxu4lE+uTbmYs2+P8eFImN+nfPLPriSt2n bK1YA X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240212_131404_114611_A59D5DD3 X-CRM114-Status: GOOD ( 15.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_atomic.c | 4 ++- drivers/gpu/drm/drm_atomic_state_helper.c | 44 +++++++++++++++++++++++++++++++ include/drm/drm_connector.h | 6 +++++ 3 files changed, 53 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 93831850ffcd..0c283964cee0 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1144,9 +1144,11 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, drm_printf(p, "\tcolorspace=%s\n", drm_get_colorspace_name(state->colorspace)); if (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || - connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) + 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_full_range=%c\n", state->hdmi.is_full_range ? 'y' : 'n'); + } if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) if (state->writeback_job && state->writeback_job->fb) diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index d93bc7f5faee..08db9956840b 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include @@ -637,6 +638,47 @@ int drm_atomic_helper_connector_tv_check(struct drm_connector *connector, } EXPORT_SYMBOL(drm_atomic_helper_connector_tv_check); +static const struct drm_display_mode * +connector_state_get_mode(const struct drm_connector_state *conn_state) +{ + struct drm_atomic_state *state; + struct drm_crtc_state *crtc_state; + struct drm_crtc *crtc; + + state = conn_state->state; + if (!state) + return NULL; + + crtc = conn_state->crtc; + if (!crtc) + return NULL; + + crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + if (!crtc_state) + return NULL; + + return &crtc_state->mode; +} + +static bool hdmi_is_full_range(const struct drm_connector *connector, + const struct drm_connector_state *state) +{ + const struct drm_display_info *display = &connector->display_info; + const struct drm_display_mode *mode = + connector_state_get_mode(state); + + if (state->hdmi.broadcast_rgb == DRM_HDMI_BROADCAST_RGB_FULL) + return true; + + if (state->hdmi.broadcast_rgb == DRM_HDMI_BROADCAST_RGB_LIMITED) + return false; + + if (!display->is_hdmi) + return true; + + return drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_FULL ? true : false; +} + /** * drm_atomic_helper_connector_hdmi_check() - Helper to check HDMI connector atomic state * @connector: DRM Connector @@ -657,6 +699,8 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, struct drm_connector_state *new_state = drm_atomic_get_new_connector_state(state, connector); + new_state->hdmi.is_full_range = hdmi_is_full_range(connector, new_state); + if (old_state->hdmi.broadcast_rgb != new_state->hdmi.broadcast_rgb) { struct drm_crtc *crtc = new_state->crtc; struct drm_crtc_state *crtc_state; diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 3867a4c01b78..76eecd449fb8 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1066,6 +1066,12 @@ struct drm_connector_state { * 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_full_range; } hdmi; };