linux-kernel - Re: [PATCH v7 6/8] drm/bridge/synopsys: dw-hdmi: Add missing bridge detach

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Date:   Wed, 10 Jan 2018 14:44:40 +0530
From:   Archit Taneja <architt@...eaurora.org>
To:     Thierry Escande <thierry.escande@...labora.com>,
        Rob Herring <robh+dt@...nel.org>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sandy Huang <hjc@...k-chips.com>
Cc:     Jeffy Chen <jeffy.chen@...k-chips.com>,
        Sean Paul <seanpaul@...omium.org>,
        dri-devel@...ts.freedesktop.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 6/8] drm/bridge/synopsys: dw-hdmi: Add missing bridge
 detach



On 01/09/2018 08:18 PM, Thierry Escande wrote:
> From: Jeffy Chen <jeffy.chen@...k-chips.com>
> 
> We inited connector in attach(), so need a detach() to cleanup.
> 
> Also fix wrong use of dw_hdmi_remove() in bind().
> 
> Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
> Signed-off-by: Thierry Escande <thierry.escande@...labora.com>

Reviewed-by: Archit Taneja <architt@...eaurora.org>

> ---
>   drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 10 +++++++++-
>   1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index a38db40ce990..1cc63a18b7d5 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -1967,6 +1967,13 @@ static int dw_hdmi_bridge_attach(struct drm_bridge *bridge)
>   	return 0;
>   }
>   
> +static void dw_hdmi_bridge_detach(struct drm_bridge *bridge)
> +{
> +	struct dw_hdmi *hdmi = bridge->driver_private;
> +
> +	drm_connector_cleanup(&hdmi->connector);
> +}
> +
>   static enum drm_mode_status
>   dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
>   			  const struct drm_display_mode *mode)
> @@ -2023,6 +2030,7 @@ static void dw_hdmi_bridge_enable(struct drm_bridge *bridge)
>   
>   static const struct drm_bridge_funcs dw_hdmi_bridge_funcs = {
>   	.attach = dw_hdmi_bridge_attach,
> +	.detach = dw_hdmi_bridge_detach,
>   	.enable = dw_hdmi_bridge_enable,
>   	.disable = dw_hdmi_bridge_disable,
>   	.mode_set = dw_hdmi_bridge_mode_set,
> @@ -2616,7 +2624,7 @@ int dw_hdmi_bind(struct platform_device *pdev, struct drm_encoder *encoder,
>   
>   	ret = drm_bridge_attach(encoder, &hdmi->bridge, NULL);
>   	if (ret) {
> -		dw_hdmi_remove(pdev);
> +		__dw_hdmi_remove(hdmi);
>   		DRM_ERROR("Failed to initialize bridge with drm\n");
>   		return ret;
>   	}
> 

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