From patchwork Wed Sep 20 14:35:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13392895 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 16953CE79DF for ; Wed, 20 Sep 2023 14:36:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A1C1510E4DB; Wed, 20 Sep 2023 14:36:23 +0000 (UTC) Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by gabe.freedesktop.org (Postfix) with ESMTPS id D6E0110E4DB for ; Wed, 20 Sep 2023 14:36:02 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 4F3FBB81D72; Wed, 20 Sep 2023 14:36:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 90F45C433CB; Wed, 20 Sep 2023 14:35:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695220559; bh=bS6gfSemjIIHmjmVH6HwLmaPa/gC+D1yOr5FTPxanI8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=YNgIB/DEdx4ZzXgdfQ2xLhZHpO9Cm0cwENhnB1jp/m+ZMh39UMuzMbwu/RSQDsUJq haQmQZutIJtx3XAMYHPLJq5oOGMuJnAtIc93y4QI4iYfP6wmdZXSFQ14Q5+46DHPVE dmxpTgYAnqGUD0mSvNmPRGe2PlB7Mt/kQWuvG78tv+BoNATfPxGxTMm2lQ7MJsjd0f N455rr6tHpp/WLtpT+sk+YAVQ3obcXiuzVl9JzN4rt/69v7zav144QNEmKVHsiVDe+ EnzAJ+3usEIXv8B0p5n/RfMLHeiYivgQIbMI5AHcsjpKzI0o8omQUtbShJ2TWhz+7h ClqGf9qi+u+sQ== From: Maxime Ripard Date: Wed, 20 Sep 2023 16:35:21 +0200 Subject: [PATCH RFC v2 06/37] drm/connector: hdmi: Add support for output format MIME-Version: 1.0 Message-Id: <20230920-kms-hdmi-connector-state-v2-6-17932daddd7d@kernel.org> References: <20230920-kms-hdmi-connector-state-v2-0-17932daddd7d@kernel.org> In-Reply-To: <20230920-kms-hdmi-connector-state-v2-0-17932daddd7d@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=6060; i=mripard@kernel.org; h=from:subject:message-id; bh=bS6gfSemjIIHmjmVH6HwLmaPa/gC+D1yOr5FTPxanI8=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDKnczJZckRv/hRz9u7vj00G+Cw+iCrdsfcr2X8Jjmvex5 37LMlSudpSyMIhxMciKKbLECJsviTs163UnG988mDmsTCBDGLg4BWAimR8ZGV6rG7iUHg97pdLI xrIofs3WjmvmZnXaMXZbF9+yXRYpls7wi+nuiuYDbrcyF2V3vn/tGLRp4kG5ruPLJMy4JgToPGJ bzggA 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 8dce0a2f2ac3..a50589b88a79 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1147,6 +1147,8 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, drm_printf(p, "\tbroadcast_rgb=%s\n", drm_hdmi_connector_get_broadcast_rgb_name(state->hdmi.broadcast_rgb)); 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 2c9b52ae1b56..3e0c10f2c456 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -572,6 +572,7 @@ void __drm_atomic_helper_connector_hdmi_reset(struct drm_connector *connector, new_state->max_bpc = 8; new_state->max_requested_bpc = 8; new_state->hdmi.output_bpc = 8; + 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); @@ -655,7 +656,8 @@ int drm_atomic_helper_connector_hdmi_check(struct drm_connector *connector, drm_atomic_get_new_connector_state(state, connector); 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 f55f5918411c..b01cb4783ea6 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; @@ -1208,6 +1212,30 @@ 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 d0bcb835c857..a66cb4e35d7b 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -394,6 +394,8 @@ 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 @@ -1061,6 +1063,11 @@ struct drm_connector_state { * @output_bpc: Bits per character to output. */ unsigned int output_bpc; + + /** + * @output_format: Pixel format to output in. + */ + enum hdmi_colorspace output_format; } hdmi; }; @@ -1927,6 +1934,14 @@ 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) @@ -1950,6 +1965,7 @@ 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);