Re: [alsa-devel] [PATCH v6 2/2] drm/i2c:tda998x: Use the HDMI audio CODEC

On Tue, 30 Sep 2014 20:25:40 +0100 Mark Brown broonie@kernel.org wrote:

...

• request_module("snd-soc-hdmi-codec");
• pdev = platform_device_register_resndata(&priv->hdmi->dev,

• 				 "hdmi-audio-codec",
  

• 				  PLATFORM_DEVID_NONE,
  

• 				  NULL, 0,
  

• 				  &tda998x_hdmi_data,
  

• 				  sizeof tda998x_hdmi_data);  
  

Why is this request_module() needed? If there is a good reason for it we should have some documentation.

The reason is simple: as the HDMI CODEC is not declared in the DT, the associated module must be loaded in memory.