linux-kernel - Re: [PATCH] Drivers: mc13783: remove deprecated mc13xxx_irq

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Message-ID: <20250904121737ed8f8114@mail.local>
Date: Thu, 4 Sep 2025 14:17:37 +0200
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Lee Jones <lee@...nel.org>
Cc: Alexander Kurz <akurz@...la.de>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Uwe Kleine-König <u.kleine-koenig@...libre.com>,
	linux-input@...r.kernel.or, linux-kernel@...r.kernel.org,
	linux-rtc@...r.kernel.org
Subject: Re: [PATCH] Drivers: mc13783: remove deprecated mc13xxx_irq_ack()

On 02/09/2025 11:20:36+0100, Lee Jones wrote:
> On Mon, 11 Aug 2025, Alexander Kurz wrote:
> 
> > mc13xxx_irq_ack() got deprecated and became dead code with commit
> > 10f9edaeaa30 ("mfd: mc13xxx: Use regmap irq framework for interrupts").
> > It should be safe to remove it now.
> > 
> > Signed-off-by: Alexander Kurz <akurz@...la.de>
> > ---
> >  drivers/input/misc/mc13783-pwrbutton.c |  1 -
> >  drivers/input/touchscreen/mc13783_ts.c |  4 ----
> 
> >  drivers/rtc/rtc-mc13xxx.c              | 13 -------------
> 
> RTC review / Ack please.

Acked-by: Alexandre Belloni <alexandre.belloni@...tlin.com>


> 
> >  include/linux/mfd/mc13xxx.h            |  6 ------
> >  4 files changed, 24 deletions(-)
> > 
> > diff --git a/drivers/input/misc/mc13783-pwrbutton.c b/drivers/input/misc/mc13783-pwrbutton.c
> > index 1c7faa9b7afe..b83d762ae2e9 100644
> > --- a/drivers/input/misc/mc13783-pwrbutton.c
> > +++ b/drivers/input/misc/mc13783-pwrbutton.c
> > @@ -57,7 +57,6 @@ static irqreturn_t button_irq(int irq, void *_priv)
> >  	struct mc13783_pwrb *priv = _priv;
> >  	int val;
> >  
> > -	mc13xxx_irq_ack(priv->mc13783, irq);
> >  	mc13xxx_reg_read(priv->mc13783, MC13783_REG_INTERRUPT_SENSE_1, &val);
> >  
> >  	switch (irq) {
> > diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c
> > index 33635da85079..47b8da00027f 100644
> > --- a/drivers/input/touchscreen/mc13783_ts.c
> > +++ b/drivers/input/touchscreen/mc13783_ts.c
> > @@ -42,8 +42,6 @@ static irqreturn_t mc13783_ts_handler(int irq, void *data)
> >  {
> >  	struct mc13783_ts_priv *priv = data;
> >  
> > -	mc13xxx_irq_ack(priv->mc13xxx, irq);
> > -
> >  	/*
> >  	 * Kick off reading coordinates. Note that if work happens already
> >  	 * be queued for future execution (it rearms itself) it will not
> > @@ -137,8 +135,6 @@ static int mc13783_ts_open(struct input_dev *dev)
> >  
> >  	mc13xxx_lock(priv->mc13xxx);
> >  
> > -	mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_TS);
> > -
> >  	ret = mc13xxx_irq_request(priv->mc13xxx, MC13XXX_IRQ_TS,
> >  		mc13783_ts_handler, MC13783_TS_NAME, priv);
> >  	if (ret)
> > diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c
> > index e7b87130e624..2494d13fd767 100644
> > --- a/drivers/rtc/rtc-mc13xxx.c
> > +++ b/drivers/rtc/rtc-mc13xxx.c
> > @@ -137,10 +137,6 @@ static int mc13xxx_rtc_set_time(struct device *dev, struct rtc_time *tm)
> >  	}
> >  
> >  	if (!priv->valid) {
> > -		ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
> > -		if (unlikely(ret))
> > -			goto out;
> > -
> >  		ret = mc13xxx_irq_unmask(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
> >  	}
> >  
> > @@ -208,10 +204,6 @@ static int mc13xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
> >  	if (unlikely(ret))
> >  		goto out;
> >  
> > -	ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_TODA);
> > -	if (unlikely(ret))
> > -		goto out;
> > -
> >  	s1970 = rtc_tm_to_time64(&alarm->time);
> >  
> >  	dev_dbg(dev, "%s: %s %lld\n", __func__, alarm->enabled ? "on" : "off",
> > @@ -239,12 +231,9 @@ static int mc13xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
> >  static irqreturn_t mc13xxx_rtc_alarm_handler(int irq, void *dev)
> >  {
> >  	struct mc13xxx_rtc *priv = dev;
> > -	struct mc13xxx *mc13xxx = priv->mc13xxx;
> >  
> >  	rtc_update_irq(priv->rtc, 1, RTC_IRQF | RTC_AF);
> >  
> > -	mc13xxx_irq_ack(mc13xxx, irq);
> > -
> >  	return IRQ_HANDLED;
> >  }
> >  
> > @@ -293,8 +282,6 @@ static int __init mc13xxx_rtc_probe(struct platform_device *pdev)
> >  
> >  	mc13xxx_lock(mc13xxx);
> >  
> > -	mc13xxx_irq_ack(mc13xxx, MC13XXX_IRQ_RTCRST);
> > -
> >  	ret = mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_RTCRST,
> >  			mc13xxx_rtc_reset_handler, DRIVER_NAME, priv);
> >  	if (ret)
> > diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
> > index f372926d5894..dd46fe424a80 100644
> > --- a/include/linux/mfd/mc13xxx.h
> > +++ b/include/linux/mfd/mc13xxx.h
> > @@ -31,12 +31,6 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx,
> >  		unsigned int mode, unsigned int channel,
> >  		u8 ato, bool atox, unsigned int *sample);
> >  
> > -/* Deprecated calls */
> > -static inline int mc13xxx_irq_ack(struct mc13xxx *mc13xxx, int irq)
> > -{
> > -	return 0;
> > -}
> > -
> >  static inline int mc13xxx_irq_request_nounmask(struct mc13xxx *mc13xxx, int irq,
> >  					       irq_handler_t handler,
> >  					       const char *name, void *dev)
> > -- 
> > 2.39.5
> > 
> 
> -- 
> Lee Jones [李琼斯]

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com