[PATCH v2 2/4] drm/omap: hdmi4: Ensure the device is active during bind

[Tony Lindgren]

* Laurent Pinchart <laurent.pinchart at ideasonboard.com> [181105 15:10]:
> The bind function performs hardware access (in hdmi4_cec_init()) and
> thus requires the device to be active. Ensure this by surrounding the
> bind function by hdmi_runtime_get() and hdmi_runtime_put() calls.
> 
> Fixes: 27d624527d99 ("drm/omap: dss: Acquire next dssdev at probe time")
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

Looks good to me except one typo below..

> index cf6230eac31a..36be9a36d664 100644
> --- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
> +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
> @@ -635,10 +635,14 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
>  
>  	hdmi->dss = dss;
>  
> -	r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
> +	r = hdmi_runtime_get(hdmi);
>  	if (r)
>  		return r;
>  
> +	r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
> +	if (r)
> +		goto err_runtime_put;
> +
>  	r = hdmi4_cec_init(hdmi->pdev, &hdmi->core, &hdmi->wp);
>  	if (r)
>  		goto err_pll_uninit;
> @@ -652,12 +656,16 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
>  	hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
>  					       hdmi);
>  
> +	hdmi_runtime_put(hdmi);
> +
>  	return 0;
>  
>  err_cec_uninit:
>  	hdmi4_cec_uninit(&hdmi->core);
>  err_pll_uninit:
>  	hdmi_pll_uninit(&hdmi->pll);
> +err_runtime_put:
> +	hdmi_runtime_get(hdmi);
>  	return r;
>  }

At err_runtime_put you should call hdmi_runtime_put() instead of
hdmi_runtime_get(), right? :)

Regards,

Tony