Re: [PATCH v1 2/2] drm: bridge: add support for lontium LT9611UXC bridge

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On Fri, Aug 28, 2020 at 07:48:48PM +0530, Vinod Koul wrote:
> On 28-08-20, 15:04, Dmitry Baryshkov wrote:
> 
> > +#define EDID_BLOCK_SIZE	128
> > +#define EDID_NUM_BLOCKS 2
> 
> tab or space either one, not both ;)
> 
> > +static struct mipi_dsi_device *lt9611uxc_attach_dsi(struct lt9611uxc *lt9611uxc,
> > +						 struct device_node *dsi_node)
> 
> Please align this with open parenthesis of preceding line (checkpatch
> with --strict option will check this)
> 
> > +static int lt9611uxc_bridge_attach(struct drm_bridge *bridge,
> > +				enum drm_bridge_attach_flags flags)
> > +{
> > +	struct lt9611uxc *lt9611uxc = bridge_to_lt9611uxc(bridge);
> > +	int ret;
> > +
> > +	if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) {
> > +		dev_err(lt9611uxc->dev, "Fix bridge driver to make connector optional!");
> 
> Can we support both modes as I have done in lt9611, that way once the
> conversion is done we can drop the init part and support conversion.

I was going to mention that :-) New drivers should support the
DRM_BRIDGE_ATTACH_NO_CONNECTOR flag.

> I have patch for msm driver to set DRM_BRIDGE_ATTACH_NO_CONNECTOR, you
> can use that to test
> 
> > +static int lt9611uxc_hdmi_hw_params(struct device *dev, void *data,
> > +				 struct hdmi_codec_daifmt *fmt,
> > +				 struct hdmi_codec_params *hparms)
> > +{
> > +	/*
> > +	 * LT9611UXC will automatically detect rate and sample size, so no need
> > +	 * to setup anything here.
> > +	 */
> > +	return 0;
> > +}
> 
> Do we need dummy function?

-- 
Regards,

Laurent Pinchart
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