From patchwork Mon Mar 11 14:49:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13588980 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 D28CFC54E58 for ; Mon, 11 Mar 2024 16:01:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=e6xx7ffsUde9mvyfLUTr+gYHrKRhwozUjClm06SH4JI=; b=inEeOKN9/vyBBw 4MH6WUdxGXRsl/2CJ667br/DJHLc7q2OFKVU9NYtPoxsw/351NaKLpMqRMxBv+vPYWtEzs2tr9oua lazAF6D31B6prkEJRT8AaOJElGAp2uXefkhDTz2SE28injwbcGnGMYUbnw1UlCgXazmlMzVC+tJ7j ai9lUYeiS203PeiSpRHvIXMCZPpoGxUFLg4dAhsB/x1/eJ4s9yhS0vIs9Xy+sMWBigEOg6h+89dzc OzkDFA7JPd+K6azA7VrRjUzohKhgUrgmqn45iGsSU0aZsLvhAjlDY2vDIlEysHcoJpjfqZfwGmgVH 0mZUs8F5yt+rTUnW4Qvw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rji5R-00000002BT1-3PTZ; Mon, 11 Mar 2024 16:01:13 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rjgzN-00000001sdv-2lJb; Mon, 11 Mar 2024 14:51:00 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id D1B5960C73; Mon, 11 Mar 2024 14:50:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 27697C43390; Mon, 11 Mar 2024 14:50:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710168652; bh=PB5uZMP81Svihtcjmn3oN1XmVQnFwiL8nPkDTykrcLI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=HHLhhgL0z6zZ58+62ouYTmjVoG++B2jJO91V/QTUckdDVZKE2TTJOI0ix5eU+IcMy WlO5iQDfKEzjPrLxjzCirmoPJvpZyNZLQOgevwX1jY3xQT6NsIJaKB+rh3M9/BqNTi 2YaAN9jJI2yDBaLFM9DrTkBYLdAQjyzp7PJFov/rv0Q8gH2xxKVUBsenFWOifXYo/3 Dn1X/SgElh3m1AiZ1s+ux0+Pn5Jc07Bv0OoU1ZqzKv/1CPFVF43acATdA+tgdbVy8i bx4dhP9B0ZwtEJTGZFTql9b35XontsPz/WV9CPbpI9Ds5og5FRHLP8R78PitMKQtu3 Dox4sli7kYk8Q== From: Maxime Ripard Date: Mon, 11 Mar 2024 15:49:46 +0100 Subject: [PATCH v9 18/27] drm/connector: hdmi: Add RGB Quantization Range to the connector state MIME-Version: 1.0 Message-Id: <20240311-kms-hdmi-connector-state-v9-18-d45890323344@kernel.org> References: <20240311-kms-hdmi-connector-state-v9-0-d45890323344@kernel.org> In-Reply-To: <20240311-kms-hdmi-connector-state-v9-0-d45890323344@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: Hans Verkuil , Sebastian Wick , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , 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=4014; i=mripard@kernel.org; h=from:subject:message-id; bh=PB5uZMP81Svihtcjmn3oN1XmVQnFwiL8nPkDTykrcLI=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDKnvpQSOr9k4Kyap8/PUucy/P5et4puWyvJxd6dl7xOt/ 4LpwqnhHaUsDGJcDLJiiiwxwuZL4k7Net3JxjcPZg4rE8gQBi5OAZiIWxIjQ4dIyLcV6u7sm8L4 Yj00TqhKteitDzAV/3o5qvLjhg+8QQz/nbjDdhUvVlT7xuHcvlZd+ObjDVa8Bx/PM9+/4PyV/Mp CTgA= 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-20240311_075054_327504_44E573EC X-CRM114-Status: GOOD ( 15.52 ) 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 | 1 + drivers/gpu/drm/drm_atomic_state_helper.c | 29 +++++++++++++++++++++++++++++ include/drm/drm_connector.h | 6 ++++++ 3 files changed, 36 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 3e57d98d8418..ec6c6beda5c9 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_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)); drm_printf(p, "\ttmds_char_rate=%llu\n", state->hdmi.tmds_char_rate); } diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 0e8fb653965a..e66272c0d006 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -662,10 +662,37 @@ connector_state_get_mode(const struct drm_connector_state *conn_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); + + /* + * 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 (state->hdmi.output_format != HDMI_COLORSPACE_RGB) + return false; + + 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; +} + 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) @@ -908,10 +935,12 @@ 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_state); int ret; + new_state->hdmi.is_full_range = hdmi_is_full_range(connector, new_state); + ret = hdmi_compute_config(connector, new_state, mode); if (ret) return ret; if (old_state->hdmi.broadcast_rgb != new_state->hdmi.broadcast_rgb || diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index bb6b6a36ade3..3eaf4d54364d 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_full_range; + /** * @output_bpc: Bits per color channel to output. */ unsigned int output_bpc;