linux-kernel - Re: [PATCH v2 2/2] drm/bridge: anx7625: add MIPI DPI input feature support

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Date:   Tue, 12 Jan 2021 16:28:43 +0800
From:   Xin Ji <xji@...logixsemi.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     Nicolas Boichat <drinkcat@...gle.com>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>, Torsten Duwe <duwe@....de>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Sheng Pan <span@...logixsemi.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devel@...verdev.osuosl.org
Subject: Re: [PATCH v2 2/2] drm/bridge: anx7625: add MIPI DPI input feature
 support

On Tue, Jan 05, 2021 at 05:17:01PM +0300, Dan Carpenter wrote:
> On Thu, Dec 31, 2020 at 10:22:36AM +0800, Xin Ji wrote:
> >  static int anx7625_read_ctrl_status_p0(struct anx7625_data *ctx)
> >  {
> >  	return anx7625_reg_read(ctx, ctx->i2c.rx_p0_client, AP_AUX_CTRL_STATUS);
> > @@ -189,10 +203,64 @@ static int wait_aux_op_finish(struct anx7625_data *ctx)
> >  			       AP_AUX_CTRL_STATUS);
> >  	if (val < 0 || (val & 0x0F)) {
> >  		DRM_DEV_ERROR(dev, "aux status %02x\n", val);
> > -		val = -EIO;
> > +		return -EIO;
> >  	}
> >  
> > -	return val;
> > +	return 0;
> 
> This s/val/0/ change seems like a bug fix.  Could you please send that
> as a separate patch at the start of the patch set?
Hi Dan Carpenter, OK, I'll send this as a separate patch.
Thanks,
Xin
> 
> > +}
> 
> regards,
> dan carpenter