Re: [PATCH v2 3/3] drm: mali-dp: Set encoder possible_clones

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On Fri, Jul 13, 2018 at 04:55:41PM +0100, Alexandru-Cosmin Gheorghe wrote:
> On Fri, Jul 13, 2018 at 11:47:33AM -0400, Sean Paul wrote:
> > On Fri, Jul 13, 2018 at 11:40:13AM -0400, Sean Paul wrote:
> > > On Fri, Jul 13, 2018 at 04:11:00PM +0100, Alexandru Gheorghe wrote:
> > > > Set possible_clones field to report that the writeback connector and
> > > > the one driving the display could be enabled at the same time.
> > > > 
> > > 
> > > In future, please include a "Changes in vX" section so it's easier to tell
> > > what's changed.
> 
> Yeah, sorry about that, the patch was so small that it never crossed
> my mind.
> 

Anything you can do to help reviewers is most appreciated.

> > > 
> > > > Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@xxxxxxx>
> > > > ---
> > > >  drivers/gpu/drm/arm/malidp_drv.c | 10 ++++++++++
> > > >  1 file changed, 10 insertions(+)
> > > > 
> > > > diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
> > > > index 5b72605..08b5bb2 100644
> > > > --- a/drivers/gpu/drm/arm/malidp_drv.c
> > > > +++ b/drivers/gpu/drm/arm/malidp_drv.c
> > > > @@ -616,6 +616,7 @@ static int malidp_bind(struct device *dev)
> > > >  	struct malidp_hw_device *hwdev;
> > > >  	struct platform_device *pdev = to_platform_device(dev);
> > > >  	struct of_device_id const *dev_id;
> > > > +	struct drm_encoder *encoder;
> > > >  	/* number of lines for the R, G and B output */
> > > >  	u8 output_width[MAX_OUTPUT_CHANNELS];
> > > >  	int ret = 0, i;
> > > > @@ -737,6 +738,15 @@ static int malidp_bind(struct device *dev)
> > > >  		goto bind_fail;
> > > >  	}
> > > >  
> > > > +	/* We expect to have a maximum of two encoders one for the actual
> > 
> > Also, while I'm here, drop the comment contents a line. ie:
> > 
> > /*
> >  * We expect...
> >  */
> > 
> > Ref: https://www.kernel.org/doc/html/v4.10/process/coding-style.html#commenting
> 
> I blame checkpatch, it should've complain about it.
> 
> > 
> > Sean
> > 
> > > > +	 * display and a virtual one for the writeback connector
> > > > +	 */
> > > > +	WARN_ON(drm->mode_config.num_encoder > 2);
> > > > +	list_for_each_entry(encoder, &drm->mode_config.encoder_list, head) {
> > > > +		encoder->possible_clones =
> > > > +				(1 << drm->mode_config.num_encoder) -  1;
> > > > +	}
> > > 
> > > This loop isn't necessary, you can just do the assignment once instead of
> > > num_encoder times :-)
> > > 
> > > Sean
> > > 
> 
> Not sure I get what you are suggesting, there are two encoders, so at least
> two assignments and the loop does just that.

Yeah, temporarily (I hope) lapse on my part. You're right :-)

Sean

> 
> > > > +
> > > >  	ret = malidp_irq_init(pdev);
> > > >  	if (ret < 0)
> > > >  		goto irq_init_fail;
> > > > -- 
> > > > 2.7.4
> > > > 
> > > 
> > > -- 
> > > Sean Paul, Software Engineer, Google / Chromium OS
> > 
> > -- 
> > Sean Paul, Software Engineer, Google / Chromium OS
> 
> -- 
> Cheers,
> Alex G

-- 
Sean Paul, Software Engineer, Google / Chromium OS
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