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Date: Mon, 18 Dec 2023 10:05:07 +0100
From: Maxime Ripard <mripard@kernel.org>
To: Alex Bee <knaerzche@gmail.com>
Cc: Sandy Huang <hjc@rock-chips.com>, 
	Heiko =?utf-8?Q?St=C3=BCbner?= <heiko@sntech.de>, Andy Yan <andyshrk@163.com>, Rob Herring <robh+dt@kernel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, 
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Thomas Zimmermann <tzimmermann@suse.de>, 
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, devicetree@vger.kernel.org, 
	linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 20/27] drm/rockchip: inno_hdmi: Correctly setup HDMI
 quantization range
Message-ID: <rrtknir3vizvcyamp3kfy47r6uppn3wwevb6a5gln2k533t52z@otm6vum6pg43>
References: <20231216162639.125215-1-knaerzche@gmail.com>
 <20231216162639.125215-21-knaerzche@gmail.com>
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On Sat, Dec 16, 2023 at 05:26:31PM +0100, Alex Bee wrote:
> @@ -431,6 +452,9 @@ static int inno_hdmi_setup(struct inno_hdmi *hdmi,
>  	else
>  		inno_conn_state->colorimetry =3D HDMI_COLORIMETRY_ITU_709;
> =20
> +	inno_conn_state->rgb_limited_range =3D
> +		drm_default_rgb_quant_range(mode) =3D=3D HDMI_QUANTIZATION_RANGE_LIMIT=
ED;
> +
>  	/* Mute video and audio output */
>  	hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
>  		  v_AUDIO_MUTE(1) | v_VIDEO_MUTE(1));

This needs to be done at atomic_check time: the expectation is that by
the time you commit the state, everything is prepared for it.

Maxime

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