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From: Neil Armstrong <narmstrong@baylibre.com>
To: chunkuang.hu@kernel.org, p.zabel@pengutronix.de, matthias.bgg@gmail.com
Cc: dri-devel@lists.freedesktop.org,
	linux-mediatek@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Neil Armstrong <narmstrong@baylibre.com>,
	Fabien Parent <fparent@baylibre.com>
Subject: [PATCH v3 3/5] gpu/drm: mediatek: hdmi: add check for CEA modes only
Date: Mon, 19 Apr 2021 09:32:42 +0200
Message-ID: <20210419073244.2678688-4-narmstrong@baylibre.com> (raw)
In-Reply-To: <20210419073244.2678688-1-narmstrong@baylibre.com>

Some SoCs like the MT8167 are not validated and supported for HDMI modes
out of HDMI CEA modes, so add a configuration boolean to filter out
non-CEA modes.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
 drivers/gpu/drm/mediatek/mtk_hdmi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index dea46d66e712..0539262e69d3 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -148,6 +148,7 @@ struct hdmi_audio_param {
 
 struct mtk_hdmi_conf {
 	bool tz_disabled;
+	bool cea_modes_only;
 };
 
 struct mtk_hdmi {
@@ -1222,6 +1223,9 @@ static int mtk_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
 			return MODE_BAD;
 	}
 
+	if (hdmi->conf->cea_modes_only && !drm_match_cea_mode(mode))
+		return MODE_BAD;
+
 	if (mode->clock < 27000)
 		return MODE_CLOCK_LOW;
 	if (mode->clock > 297000)
-- 
2.25.1


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Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-19  7:32 [PATCH v3 0/5] mediatek: hdmi: add MT8167 configuration Neil Armstrong
2021-04-19  7:32 ` [PATCH v3 1/5] dt-bindings: display: mediatek, hdmi: Convert to use graph schema Neil Armstrong
2021-04-20 16:24   ` Rob Herring
2021-04-19  7:32 ` [PATCH v3 2/5] dt-bindings: mediatek: add mt8167 to hdmi, hdmi-ddc and cec bindings Neil Armstrong
2021-04-20 16:25   ` Rob Herring
2021-04-19  7:32 ` Neil Armstrong [this message]
2021-04-24  0:24   ` [PATCH v3 3/5] gpu/drm: mediatek: hdmi: add check for CEA modes only Chun-Kuang Hu
2021-04-19  7:32 ` [PATCH v3 4/5] gpu/drm: mediatek: hdmi: add optional limit on maximal HDMI mode clock Neil Armstrong
2021-04-24  0:24   ` Chun-Kuang Hu
2021-04-19  7:32 ` [PATCH v3 5/5] gpu/drm: mediatek: hdmi: add MT8167 configuration Neil Armstrong
2021-04-24  0:25   ` Chun-Kuang Hu
2021-05-13  0:06 ` [PATCH v3 0/5] " Chun-Kuang Hu

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