linux-kernel - RE: [PATCH V2 2/2] soc: imx8: Use existing of

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Message-ID: <DB3PR0402MB3916AF21E4C4199E083790A1F5EA0@DB3PR0402MB3916.eurprd04.prod.outlook.com>
Date:   Tue, 18 Jun 2019 09:44:35 +0000
From:   Anson Huang <anson.huang@....com>
To:     Shawn Guo <shawnguo@...nel.org>
CC:     "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        Leonard Crestez <leonard.crestez@....com>,
        "viresh.kumar@...aro.org" <viresh.kumar@...aro.org>,
        Abel Vesa <abel.vesa@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH V2 2/2] soc: imx8: Use existing of_root directly

Hi, Shawn

> -----Original Message-----
> From: Shawn Guo <shawnguo@...nel.org>
> Sent: Tuesday, June 18, 2019 5:15 PM
> To: Anson Huang <anson.huang@....com>
> Cc: s.hauer@...gutronix.de; kernel@...gutronix.de; festevam@...il.com;
> Leonard Crestez <leonard.crestez@....com>; viresh.kumar@...aro.org;
> Abel Vesa <abel.vesa@....com>; linux-arm-kernel@...ts.infradead.org;
> linux-kernel@...r.kernel.org; dl-linux-imx <linux-imx@....com>
> Subject: Re: [PATCH V2 2/2] soc: imx8: Use existing of_root directly
> 
> On Fri, Jun 14, 2019 at 04:07:48PM +0800, Anson.Huang@....com wrote:
> > From: Anson Huang <Anson.Huang@....com>
> >
> > There is common of_root for reference, no need to find it from DT
> > again, use of_root directly to make driver simple.
> >
> > Signed-off-by: Anson Huang <Anson.Huang@....com>
> > Reviewed-by: Dong Aisheng <aisheng.dong@....com>
> 
> It cannot be applied.  Please resend by basing on my imx/drivers branch.

OK, just resent, there is a soc driver patch in linux-next, previously I did it based on it.
Now I change it to your git repo, you could meet conflict during merge.

Thanks,
Anson

> 
> Shawn
> 
> > ---
> > No changes.
> > ---
> >  drivers/soc/imx/soc-imx8.c | 9 ++-------
> >  1 file changed, 2 insertions(+), 7 deletions(-)
> >
> > diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c
> > index 5c7f330..b459bf2 100644
> > --- a/drivers/soc/imx/soc-imx8.c
> > +++ b/drivers/soc/imx/soc-imx8.c
> > @@ -105,7 +105,6 @@ static int __init imx8_soc_init(void)  {
> >  	struct soc_device_attribute *soc_dev_attr;
> >  	struct soc_device *soc_dev;
> > -	struct device_node *root;
> >  	const struct of_device_id *id;
> >  	u32 soc_rev = 0;
> >  	const struct imx8_soc_data *data;
> > @@ -117,12 +116,11 @@ static int __init imx8_soc_init(void)
> >
> >  	soc_dev_attr->family = "Freescale i.MX";
> >
> > -	root = of_find_node_by_path("/");
> > -	ret = of_property_read_string(root, "model", &soc_dev_attr-
> >machine);
> > +	ret = of_property_read_string(of_root, "model",
> > +&soc_dev_attr->machine);
> >  	if (ret)
> >  		goto free_soc;
> >
> > -	id = of_match_node(imx8_soc_match, root);
> > +	id = of_match_node(imx8_soc_match, of_root);
> >  	if (!id) {
> >  		ret = -ENODEV;
> >  		goto free_soc;
> > @@ -147,8 +145,6 @@ static int __init imx8_soc_init(void)
> >  		goto free_rev;
> >  	}
> >
> > -	of_node_put(root);
> > -
> >  	if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT))
> >  		platform_device_register_simple("imx-cpufreq-dt", -1, NULL,
> 0);
> >
> > @@ -159,7 +155,6 @@ static int __init imx8_soc_init(void)
> >  		kfree(soc_dev_attr->revision);
> >  free_soc:
> >  	kfree(soc_dev_attr);
> > -	of_node_put(root);
> >  	return ret;
> >  }
> >  device_initcall(imx8_soc_init);
> > --
> > 2.7.4
> >