linux-kernel - Re: [PATCH v7 2/3] rtc: sophgo: add rtc support for Sophgo CV1800 SoC

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Message-ID: <CAJRtX8SWyUJmiR-z108XcVY77kCXhz7E4=sLE0+gmzsXjipW9w@mail.gmail.com>
Date: Mon, 22 Jan 2024 16:38:51 +0800
From: Jingbao Qiu <qiujingbao.dlmu@...il.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: alexandre.belloni@...tlin.com, robh+dt@...nel.org, 
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, chao.wei@...hgo.com, 
	unicorn_wang@...look.com, paul.walmsley@...ive.com, palmer@...belt.com, 
	aou@...s.berkeley.edu, linux-rtc@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org, 
	dlan@...too.org
Subject: Re: [PATCH v7 2/3] rtc: sophgo: add rtc support for Sophgo CV1800 SoC

On Mon, Jan 22, 2024 at 4:29 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 22/01/2024 09:06, Jingbao Qiu wrote:
> > Implement the RTC driver for CV1800, which able to provide time alarm
> > and calibrate functionality.
> >
> > Signed-off-by: Jingbao Qiu <qiujingbao.dlmu@...il.com>
> > ---
> >
> > Depends on https://lore.kernel.org/all/IA1PR20MB4953C774D41EDF1EADB6EC18BB6D2@IA1PR20MB4953.namprd20.prod.outlook.com/
> >
>
> Why?
>
> How could a RTC driver depend on clock driver or clock bindings? This
> looks wrong and it prevents your driver being merged via easy path.

Thanks,I will fix it.

>
> > diff --git a/drivers/rtc/rtc-cv1800.c b/drivers/rtc/rtc-cv1800.c
> > new file mode 100644
> > index 000000000000..fbf2e575ea94
> > --- /dev/null
> > +++ b/drivers/rtc/rtc-cv1800.c
> > @@ -0,0 +1,406 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * rtc-cv1800.c: RTC driver for Sophgo cv1800 RTC
> > + *
> > + * Author: Jingbao Qiu <qiujingbao.dlmu@...il.com>
> > + */
> > +#include <linux/kernel.h>
> > +#include <linux/clk.h>
> > +#include <linux/module.h>
> > +#include <linux/irq.h>
> > +#include <linux/delay.h>
> > +#include <linux/rtc.h>
> > +#include <linux/platform_device.h>
> > +#include <linux/mfd/syscon.h>
>
> Drop

Thanks, I will do that.

>
> > +#include <linux/regmap.h>
> > +#include <linux/of.h>
>
> Keep the includes sorted, prefferably alphabetically.

Thank you for your suggestion.I will do that.

>
> ...
>
> > +
> > +static int cv1800_rtc_probe(struct platform_device *pdev)
> > +{
> > +     struct cv1800_rtc_priv *rtc;
> > +     uint32_t ctrl_val;
> > +     void __iomem *base;
> > +     int ret;
> > +
> > +     rtc = devm_kzalloc(&pdev->dev, sizeof(struct cv1800_rtc_priv),
>
> sizeof(*)

I will do that.

>
> > +                        GFP_KERNEL);
> > +     if (!rtc)
> > +             return -ENOMEM;
> > +
> > +     base = devm_platform_ioremap_resource(pdev, 0);
> > +     if (IS_ERR(base))
> > +             return PTR_ERR(base);
> > +
> > +     rtc->rtc_map =
>
> Unneeded blank line. Don't wrap at =.

Thanks, I will do that.

Best regards,
Jingbao QIu