On Mon, Jul 8, 2019 at 1:03 PM Cheng-yi Chiang <cychiang@xxxxxxxxxxxx> wrote: > > On Fri, Jul 5, 2019 at 8:12 PM Mark Brown <broonie@xxxxxxxxxx> wrote: > > > > On Fri, Jul 05, 2019 at 03:08:37PM +0800, Tzung-Bi Shih wrote: > > > On Fri, Jul 5, 2019 at 12:26 PM Cheng-Yi Chiang <cychiang@xxxxxxxxxxxx> wrote: > > > > > > +typedef void (*hdmi_codec_plugged_cb)(struct platform_device *dev, > > > > + bool plugged); > > > > + > > > > > The callback prototype is "weird" by struct platform_device. Is it > > > possible to having snd_soc_component instead of platform_device? > > > > Or if it's got to be a device why not just a generic device so > > we're not tied to a particular bus here? > > My intention was to invoke the call in dw-hdmi.c like this: > > hdmi->plugged_cb(hdmi->audio, > result == connector_status_connected); > > Here hdmi->audio is a platform_device. > I think dw-hdmi can not get snd_soc_component easily. > I can use a generic device here so the ops is more general. > The calling will be like > hdmi->plugged_cb(&hdmi->audio->dev, > result == connector_status_connected); > I will update this in v2. > Thanks! I have thought about this a bit more. And I think the more proper interface is to pass in a generic struct device* for codec. This way, the user of hdmi-codec driver on the DRM side is not limited to the relation chain of audio platform device -> codec platform device, which is just a special case in dw-hdmi driver. As long as DRM side can get hdmi-codec device pointer through drv_data, it can use this callback. Hope this makes the interface more generic. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
