linux-kernel - Re: [PATCH v2 04/10] pinctrl: intel: Switch to use DEFINE_NOIRQ_DEV_PM

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Message-ID: <20230718110451.00001227@Huawei.com>
Date:   Tue, 18 Jul 2023 11:04:51 +0100
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
CC:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Balsam CHIHI <bchihi@...libre.com>,
        "Claudiu Beznea" <claudiu.beznea@...rochip.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Paul Cercueil <paul@...pouillou.net>,
        <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-renesas-soc@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-pm@...r.kernel.org>, Andy Shevchenko <andy@...nel.org>,
        Andrew Lunn <andrew@...n.ch>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Len Brown <len.brown@...el.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sean Wang <sean.wang@...nel.org>,
        "Jonathan Hunter" <jonathanh@...dia.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Pavel Machek <pavel@....cz>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH v2 04/10] pinctrl: intel: Switch to use
 DEFINE_NOIRQ_DEV_PM_OPS() helper

On Mon, 17 Jul 2023 20:28:15 +0300
Andy Shevchenko <andriy.shevchenko@...ux.intel.com> wrote:

> Since pm.h provides a helper for system no-IRQ PM callbacks,
> switch the driver to use it instead of open coded variant.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  drivers/pinctrl/intel/pinctrl-intel.c | 5 +----
>  drivers/pinctrl/intel/pinctrl-intel.h | 9 ++-------
>  2 files changed, 3 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
> index 64c3e62b4348..40e45c4889ee 100644
> --- a/drivers/pinctrl/intel/pinctrl-intel.c
> +++ b/drivers/pinctrl/intel/pinctrl-intel.c
> @@ -929,7 +929,7 @@ static int intel_gpio_to_pin(struct intel_pinctrl *pctrl, unsigned int offset,
>   *
>   * Return: a GPIO offset, or negative error code if translation can't be done.
>   */
> -static __maybe_unused int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
> +static int intel_pin_to_gpio(struct intel_pinctrl *pctrl, int pin)
>  {
>  	const struct intel_community *community;
>  	const struct intel_padgroup *padgrp;
> @@ -1488,7 +1488,6 @@ static int intel_pinctrl_pm_init(struct intel_pinctrl *pctrl)
>  	if (!communities)
>  		return -ENOMEM;
>  
> -
>  	for (i = 0; i < pctrl->ncommunities; i++) {
>  		struct intel_community *community = &pctrl->communities[i];
>  		u32 *intmask, *hostown;
> @@ -1712,7 +1711,6 @@ const struct intel_pinctrl_soc_data *intel_pinctrl_get_soc_data(struct platform_
>  }
>  EXPORT_SYMBOL_GPL(intel_pinctrl_get_soc_data);
>  
> -#ifdef CONFIG_PM_SLEEP
>  static bool __intel_gpio_is_direct_irq(u32 value)
>  {
>  	return (value & PADCFG0_GPIROUTIOXAPIC) && (value & PADCFG0_GPIOTXDIS) &&
> @@ -1913,7 +1911,6 @@ int intel_pinctrl_resume_noirq(struct device *dev)
>  	return 0;
>  }
>  EXPORT_SYMBOL_GPL(intel_pinctrl_resume_noirq);
> -#endif

Can you check if this is successfully removed?  I think it won't be.
Not immediately obvious how to tidy that up given these are used
in a macro called from lots of drivers.

Maybe just leaving the ifdef is best we can do here.



>  
>  MODULE_AUTHOR("Mathias Nyman <mathias.nyman@...ux.intel.com>");
>  MODULE_AUTHOR("Mika Westerberg <mika.westerberg@...ux.intel.com>");
> diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h
> index 1faf2ada480a..65b1699a2ed5 100644
> --- a/drivers/pinctrl/intel/pinctrl-intel.h
> +++ b/drivers/pinctrl/intel/pinctrl-intel.h
> @@ -255,15 +255,10 @@ struct intel_pinctrl {
>  int intel_pinctrl_probe_by_hid(struct platform_device *pdev);
>  int intel_pinctrl_probe_by_uid(struct platform_device *pdev);
>  
> -#ifdef CONFIG_PM_SLEEP
>  int intel_pinctrl_suspend_noirq(struct device *dev);
>  int intel_pinctrl_resume_noirq(struct device *dev);
> -#endif
>  
> -#define INTEL_PINCTRL_PM_OPS(_name)					\
> -const struct dev_pm_ops _name = {					\
> -	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend_noirq,	\
> -				      intel_pinctrl_resume_noirq)	\
> -}
> +#define INTEL_PINCTRL_PM_OPS(_name)								\
> +	DEFINE_NOIRQ_DEV_PM_OPS(_name, intel_pinctrl_suspend_noirq, intel_pinctrl_resume_noirq)
>  
>  #endif /* PINCTRL_INTEL_H */