1. 14 Jul, 2016 34 commits
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    • Kuninori Morimoto's avatar
      ASoC: hdmi-codec: callback function will be called with private data · efc9194b
      Kuninori Morimoto authored
      Current hdmi-codec driver is assuming that it will be registered
      from HDMI driver. Because of this assumption, each callback function
      has struct device pointer which is parent device (= HDMI).
      Then, it can use dev_get_drvdata() to get private data.
      
      OTOH, on some SoC/HDMI case, SoC has VIDEO/SOUND and HDMI IPs.
      This case, it needs SoC VIDEO, SoC SOUND and HDMI video, HDMI codec
      driver. In DesignWare HDMI IP case, SoC VIDEO (= DRM/KMS) driver tries
      to bind DesignWare HDMI video driver, and HDMI codec driver
      (= hdmi-codec). This case, above "parent device" of HDMI codec driver
      is DRM/KMS driver and its "device" already has private data.
      
      And, from DT and ASoC CPU/Codec/Card binding point of view, HDMI codec
      (= hdmi-codec) needs to have "parent device" (= DRM/KMS), otherwise,
      it never detect sound card.
      
      Because of these reasons, some driver can't use dev_get_drvdata() to
      get private data on hdmi-codec driver. This patch add new void pointer
      on hdmi_codec_pdata for private data, and callback function will be
      called with it.
      Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
      Signed-off-by: default avatarMark Brown <broonie@kernel.org>
      efc9194b