[PATCH v2 2/2] drm: bridge: adv7511: Add support for ADV7535

Togorean, Bogdan Bogdan.Togorean at analog.com
Wed Aug 21 05:34:22 UTC 2019


On Tue, 2019-08-20 at 10:53 +0200, Daniel Vetter wrote:
> [External]
> 
> On Mon, Aug 19, 2019 at 12:46:16PM +0200, Sam Ravnborg wrote:
> > Hi Bogdan.
> > 
> > > > >  		adv7533_detach_dsi(adv7511);
> > > > >  	i2c_unregister_device(adv7511->i2c_cec);
> > > > >  	if (adv7511->cec_clk)
> > > > > @@ -1266,8 +1278,9 @@ static const struct i2c_device_id
> > > > > adv7511_i2c_ids[] = {
> > > > >  	{ "adv7511", ADV7511 },
> > > > >  	{ "adv7511w", ADV7511 },
> > > > >  	{ "adv7513", ADV7511 },
> > > > > -#ifdef CONFIG_DRM_I2C_ADV7533
> > > > > +#ifdef CONFIG_DRM_I2C_ADV753x
> > > > >  	{ "adv7533", ADV7533 },
> > > > > +	{ "adv7535", ADV7535 },
> > > > >  #endif
> > > > 
> > > > This ifdef may not be needed??
> > > > If we did not get this type we will not look it up.
> > > But if we have defined in DT adv7533/5 device but
> > > CONFIG_DRM_I2C_ADV753x not selected probe will fail with ENODEV.
> > > That
> > > would be ok?
> > 
> > What do we gain from this complexity in the end.
> > Why not let the driver always support all variants.
> > 
> > If this result in a simpler driver, and less choices in Kconfig
> > then it is a win-win.
> 
> Yeah in general we don't Kconfig within drivers in drm to disable
> specific
> code-paths. It's not worth the pain.
Ack,
Thank you for clarification. Will remove in V3.
> -Daniel


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