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From:   Guillaume Ranquet <granquet@baylibre.com>
Date:   Fri, 14 Oct 2022 17:15:59 +0200
Subject: [PATCH v2 06/12] drm/mediatek: hdmi: add frame_colorimetry flag
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Message-Id: <20220919-v2-6-8419dcf4f09d@baylibre.com>
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To:     Chunfeng Yun <chunfeng.yun@mediatek.com>,
        David Airlie <airlied@gmail.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Jitao shi <jitao.shi@mediatek.com>, CK Hu <ck.hu@mediatek.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Vinod Koul <vkoul@kernel.org>,
        Kishon Vijay Abraham I <kishon@ti.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc:     Guillaume Ranquet <granquet@baylibre.com>, stuart.lee@mediatek.com,
        linux-phy@lists.infradead.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        linux-kernel@vger.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
        mac.shen@mediatek.com, linux-mediatek@lists.infradead.org,
        dri-devel@lists.freedesktop.org
Precedence: bulk

Add a flag to indicate support for frame colorimetry.

Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
---
 drivers/gpu/drm/mediatek/mtk_hdmi_common.c | 11 +++++++++++
 drivers/gpu/drm/mediatek/mtk_hdmi_common.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
index 3635ca66817b..933c51b5f6d7 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
@@ -120,6 +120,17 @@ int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi *hdmi, u8 *buffer, size_t bufsz
 		return err;
 	}
 
+	if (hdmi->conf->has_frame_colorimetry) {
+		frame.colorimetry = hdmi->colorimtery;
+		if (frame.colorimetry == HDMI_COLORIMETRY_EXTENDED)
+			frame.extended_colorimetry = hdmi->extended_colorimetry;
+
+		/* quantiation range:limited or full */
+		if (frame.colorspace == HDMI_COLORSPACE_RGB)
+			frame.quantization_range = hdmi->quantization_range;
+		else
+			frame.ycc_quantization_range = hdmi->ycc_quantization_range;
+	}
 	err = hdmi_avi_infoframe_pack(&frame, buffer, bufsz);
 
 	if (err < 0) {
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.h b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
index 921bde150e11..2e8e5feec377 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
@@ -32,6 +32,7 @@ struct mtk_hdmi_conf {
 	bool tz_disabled;
 	bool cea_modes_only;
 	bool has_cec;
+	bool has_frame_colorimetry;
 	unsigned long max_mode_clock;
 	const struct drm_bridge_funcs *bridge_funcs;
 	void (*mtk_hdmi_output_init)(struct mtk_hdmi *hdmi);

-- 
b4 0.11.0-dev