linux-kernel - RE: [PATCH 5/9] remoteproc: imx_rproc: parse early-booted property

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Message-ID: <AM0PR04MB4481882E603D1C83C637183788EF0@AM0PR04MB4481.eurprd04.prod.outlook.com>
Date:   Sun, 23 Feb 2020 00:11:51 +0000
From:   Peng Fan <peng.fan@....com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
CC:     "ohad@...ery.com" <ohad@...ery.com>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "linux-remoteproc@...r.kernel.org" <linux-remoteproc@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 5/9] remoteproc: imx_rproc: parse early-booted property

> Subject: Re: [PATCH 5/9] remoteproc: imx_rproc: parse early-booted property
> 
> On Wed, Feb 19, 2020 at 03:27:41PM +0800, peng.fan@....com wrote:
> > From: Peng Fan <peng.fan@....com>
> >
> > If early-property exists, there is no need to check syscon.
> > Just mark early_boot as true.
> >
> > Signed-off-by: Peng Fan <peng.fan@....com>
> > ---
> >  drivers/remoteproc/imx_rproc.c | 18 +++++++++++-------
> >  1 file changed, 11 insertions(+), 7 deletions(-)
> >
> > diff --git a/drivers/remoteproc/imx_rproc.c
> > b/drivers/remoteproc/imx_rproc.c index b9fabe269fd2..e31ea1090cf3
> > 100644
> > --- a/drivers/remoteproc/imx_rproc.c
> > +++ b/drivers/remoteproc/imx_rproc.c
> > @@ -483,7 +483,9 @@ static int imx_rproc_configure_mode(struct
> imx_rproc *priv)
> >  	int ret;
> >  	u32 val;
> >
> > -	if (of_get_property(dev->of_node, "early-booted", NULL)) {
> > +	if (dcfg->variants == IMX7ULP) {
> 
> Where does dcfg->variants comes from?
> 
> This patch doesn't compile, nor does the one before it.  I will not review
> another patchset like that.

Ah. Weird. variants should be variant. 
See https://patchwork.kernel.org/patch/11390559/

I need wait early boot related functions in
remoteproc-core.c ready, then post v2.

Thanks,
Peng.
> 
> > +		priv->early_boot = true;
> > +	} else if (of_get_property(dev->of_node, "early-booted", NULL)) {
> >  		priv->early_boot = true;
> >  	} else {
> >  		ret = regmap_read(priv->regmap, dcfg->src_reg, &val); @@ -509,15
> > +511,17 @@ static int imx_rproc_probe(struct platform_device *pdev)
> >  	struct rproc *rproc;
> >  	struct regmap_config config = { .name = "imx-rproc" };
> >  	const struct imx_rproc_dcfg *dcfg;
> > -	struct regmap *regmap;
> > +	struct regmap *regmap = NULL;
> >  	int ret;
> >
> > -	regmap = syscon_regmap_lookup_by_phandle(np, "syscon");
> > -	if (IS_ERR(regmap)) {
> > -		dev_err(dev, "failed to find syscon\n");
> > -		return PTR_ERR(regmap);
> > +	if (!of_get_property(np, "early-booted", NULL)) {
> > +		regmap = syscon_regmap_lookup_by_phandle(np, "syscon");
> > +		if (IS_ERR(regmap)) {
> > +			dev_err(dev, "failed to find syscon\n");
> > +			return PTR_ERR(regmap);
> > +		}
> > +		regmap_attach_dev(dev, regmap, &config);
> >  	}
> > -	regmap_attach_dev(dev, regmap, &config);
> >
> >  	/* set some other name then imx */
> >  	rproc = rproc_alloc(dev, "imx-rproc", &imx_rproc_ops,
> > --
> > 2.16.4
> >