linux-kernel - Re: [PATCH v2 18/27] drm/rockchip: inno

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Message-ID: <rvovzl6rqkaa2hvml75if5bjasqnyh2r354jdjpa5gckfpcxv4@wlknpt7lhncq>
Date: Mon, 18 Dec 2023 10:02:25 +0100
From: Maxime Ripard <mripard@...nel.org>
To: Alex Bee <knaerzche@...il.com>
Cc: Sandy Huang <hjc@...k-chips.com>, 
	Heiko Stübner <heiko@...ech.de>, Andy Yan <andyshrk@....com>, Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Thomas Zimmermann <tzimmermann@...e.de>, 
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, devicetree@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 18/27] drm/rockchip: inno_hdmi: Subclass connector
 state

Hi,

Thanks for working on that, it's much better now.

On Sat, Dec 16, 2023 at 05:26:29PM +0100, Alex Bee wrote:
> +static struct drm_connector_state *
> +inno_hdmi_connector_duplicate_state(struct drm_connector *connector)
> +{
> +	struct inno_hdmi_connector_state *inno_conn_state;
> +
> +	if (WARN_ON(!connector->state))
> +		return NULL;
> +
> +	inno_conn_state = kmemdup(to_inno_hdmi_conn_state(connector->state),
> +				  sizeof(*inno_conn_state), GFP_KERNEL);
> +
> +	if (!inno_conn_state)
> +		return NULL;
> +
> +	__drm_atomic_helper_connector_duplicate_state(connector,
> +						      &inno_conn_state->base);
> +
> +	return &inno_conn_state->base;
> +}
> +
>  static const struct drm_connector_funcs inno_hdmi_connector_funcs = {
>  	.fill_modes = inno_hdmi_probe_single_connector_modes,
>  	.detect = inno_hdmi_connector_detect,
>  	.destroy = inno_hdmi_connector_destroy,
>  	.reset = drm_atomic_helper_connector_reset,
> -	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
> +	.atomic_duplicate_state = inno_hdmi_connector_duplicate_state,
>  	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
>  };

You also need a custom reset and atomic_destroy_state implementations

Maxime

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