From patchwork Tue Oct 31 16:48:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13442004 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2455DC4332F for ; Tue, 31 Oct 2023 16:49:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4A97710E579; Tue, 31 Oct 2023 16:49:05 +0000 (UTC) Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9816610E577 for ; Tue, 31 Oct 2023 16:48:54 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by ams.source.kernel.org (Postfix) with ESMTP id E4ECDB81185; Tue, 31 Oct 2023 16:48:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ECDC6C433C9; Tue, 31 Oct 2023 16:48:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1698770932; bh=imyjYQb9m3BKL9OeHOQ88cy0zO9XOMWzQrhSaz1bFUA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=tB9aGWaA6mjOhcYnPSmWdlEHHLuUP3+HAJv0diji1FEvMEJ9OLUsEWJ01ZWl6viB4 IZdw2BjYKKqFr5sjNvyVidNSX2fTeetvknVUw0qrmuLU0dk4+1fo4DazewzUBnuCAf 42F4bpzrYRYiCpcYTPgvKeQxIUx9gEqqECZ2qe5dShZ6AQ1VwND80GtB4X9M/EomLS tZb75vfK0KL5kXXmez7A6L0oAf0gnxAyw/RsazRjKN+qKJxVM4DQQBvb7/OA5/75RM cWMh2hmlBCquUnbikmiuA3RRJb6zR8e2vdjJBKAuEuxpRhQU6LdvjHLyjkS52DiHX0 lI/lNafIGghRw== From: Maxime Ripard Date: Tue, 31 Oct 2023 17:48:19 +0100 Subject: [PATCH RFC v3 06/37] drm/connector: hdmi: Add support for output format MIME-Version: 1.0 Message-Id: <20231031-kms-hdmi-connector-state-v3-6-328b0fae43a7@kernel.org> References: <20231031-kms-hdmi-connector-state-v3-0-328b0fae43a7@kernel.org> In-Reply-To: <20231031-kms-hdmi-connector-state-v3-0-328b0fae43a7@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 X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=6141; i=mripard@kernel.org; h=from:subject:message-id; bh=imyjYQb9m3BKL9OeHOQ88cy0zO9XOMWzQrhSaz1bFUA=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDKmO+veWv1zVfZV9loqJ9LcLE3csjJR+o2bVp6yeIqaRs sTXTnd+RykLgxgXg6yYIkuMsPmSuFOzXney8c2DmcPKBDKEgYtTACayyYvhv5fmtDezlt97smH/ pN8HJiVyaZW/+/cgdesEK58zsccOL1ZgZPjvp36p92XrhfKTr+xa9LdOz9wz/QyTVf0yWakLK4+ WrmIAAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Hans Verkuil , linux-rockchip@lists.infradead.org, Maxime Ripard , linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Just like BPC, we'll add support for automatic selection of the output format for HDMI connectors. Let's add the needed defaults and fields for now. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_atomic.c | 2 ++ drivers/gpu/drm/drm_atomic_state_helper.c | 4 +++- drivers/gpu/drm/drm_connector.c | 28 ++++++++++++++++++++++++++++ include/drm/drm_connector.h | 16 ++++++++++++++++ 4 files changed, 49 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 51aac1b2aaaf..0ebe1142dcfe 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1148,6 +1148,8 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, 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'); 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)); } if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 406ba358aa14..37262dd002c8 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -575,6 +575,7 @@ void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, new_state->max_bpc = max_bpc; new_state->max_requested_bpc = max_bpc; new_state->hdmi.output_bpc = max_bpc; + new_state->hdmi.output_format = HDMI_COLORSPACE_RGB; new_state->hdmi.broadcast_rgb = DRM_HDMI_BROADCAST_RGB_AUTO; } EXPORT_SYMBOL(__drm_atomic_helper_connector_hdmi_reset); @@ -692,7 +693,8 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *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 || - old_state->hdmi.output_bpc != new_state->hdmi.output_bpc) { + old_state->hdmi.output_bpc != new_state->hdmi.output_bpc || + old_state->hdmi.output_format != new_state->hdmi.output_format) { struct drm_crtc *crtc = new_state->crtc; struct drm_crtc_state *crtc_state; diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 508d1c667732..9037e1b1b383 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -459,6 +459,7 @@ EXPORT_SYMBOL(drmm_connector_init); * @funcs: callbacks for this connector * @connector_type: user visible type of the connector * @ddc: optional pointer to the associated ddc adapter + * @supported_formats: Bitmask of @hdmi_colorspace listing supported output formats * @max_bpc: Maximum bits per char the HDMI connector supports * * Initialises a preallocated HDMI connector. Connectors can be @@ -477,6 +478,7 @@ int drmm_connector_hdmi_init(struct drm_device *dev, const struct drm_connector_funcs *funcs, int connector_type, struct i2c_adapter *ddc, + unsigned long supported_formats, unsigned int max_bpc) { int ret; @@ -489,6 +491,8 @@ int drmm_connector_hdmi_init(struct drm_device *dev, if (ret) return ret; + connector->hdmi.supported_formats = supported_formats; + if (max_bpc) { if (!(max_bpc == 8 || max_bpc == 10 || max_bpc == 12)) return -EINVAL; @@ -1215,6 +1219,30 @@ drm_hdmi_connector_get_broadcast_rgb_name(enum drm_hdmi_broadcast_rgb broadcast_ } EXPORT_SYMBOL(drm_hdmi_connector_get_broadcast_rgb_name); +static const char * const output_format_str[] = { + [HDMI_COLORSPACE_RGB] = "RGB", + [HDMI_COLORSPACE_YUV420] = "YUV 4:2:0", + [HDMI_COLORSPACE_YUV422] = "YUV 4:2:2", + [HDMI_COLORSPACE_YUV444] = "YUV 4:4:4", +}; + +/* + * drm_hdmi_connector_get_output_format_name() - Return a string for HDMI connector output format + * @fmt: Output format to compute name of + * + * Returns: the name of the output format, or NULL if the type is not + * valid. + */ +const char * +drm_hdmi_connector_get_output_format_name(enum hdmi_colorspace fmt) +{ + if (fmt >= ARRAY_SIZE(output_format_str)) + return NULL; + + return output_format_str[fmt]; +} +EXPORT_SYMBOL(drm_hdmi_connector_get_output_format_name); + /** * DOC: standard connector properties * diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 2d664b6ac0a6..32f0b3b7383e 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -391,6 +391,8 @@ enum drm_hdmi_broadcast_rgb { const char * drm_hdmi_connector_get_broadcast_rgb_name(enum drm_hdmi_broadcast_rgb broadcast_rgb); +const char * +drm_hdmi_connector_get_output_format_name(enum hdmi_colorspace fmt); /** * struct drm_monitor_range_info - Panel's Monitor range in EDID for @@ -1064,6 +1066,11 @@ struct drm_connector_state { * @output_bpc: Bits per color channel to output. */ unsigned int output_bpc; + + /** + * @output_format: Pixel format to output in. + */ + enum hdmi_colorspace output_format; } hdmi; }; @@ -1930,6 +1937,14 @@ struct drm_connector { /** @hdr_sink_metadata: HDR Metadata Information read from sink */ struct hdr_sink_metadata hdr_sink_metadata; + + struct { + /** + * @supported_formats: Bitmask of @hdmi_colorspace + * supported by the controller. + */ + unsigned long supported_formats; + } hdmi; }; #define obj_to_connector(x) container_of(x, struct drm_connector, base) @@ -1953,6 +1968,7 @@ int drmm_connector_hdmi_init(struct drm_device *dev, const struct drm_connector_funcs *funcs, int connector_type, struct i2c_adapter *ddc, + unsigned long supported_formats, unsigned int max_bpc); void drm_connector_attach_edid_property(struct drm_connector *connector); int drm_connector_register(struct drm_connector *connector);