linux-kernel - Re: [PATCH 1/5 v5] irqchip: ingenic: Drop redundant irq_suspend / irq

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Message-Id: <1570320829.3.2@crapouillou.net>
Date:   Sun, 06 Oct 2019 02:13:49 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Zhou Yanjie <zhouyanjie@...o.com>
Cc:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        tglx@...utronix.de, paul.burton@...s.com,
        gregkh@...uxfoundation.org, jason@...edaemon.net, syq@...ian.org,
        marc.zyngier@....com, rfontana@...hat.com, armijn@...ldur.nl,
        allison@...utok.net
Subject: Re: [PATCH 1/5 v5] irqchip: ingenic: Drop redundant irq_suspend /
 irq_resume functions

Hi Zhou,


Le mer., oct. 2, 2019 at 19:25, Zhou Yanjie <zhouyanjie@...o.com> a 
écrit :
> From: Paul Cercueil <paul@...pouillou.net>
> 
> The same behaviour can be obtained by using the 
> IRQCHIP_MASK_ON_SUSPEND
> flag on the IRQ chip.
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>

If you sumbit a patchset that contains someone else's patches you need 
to add your Signed-off-by too.

> ---
>  drivers/irqchip/irq-ingenic.c   | 24 +-----------------------
>  include/linux/irqchip/ingenic.h | 14 --------------
>  2 files changed, 1 insertion(+), 37 deletions(-)
>  delete mode 100644 include/linux/irqchip/ingenic.h
> 
> diff --git a/drivers/irqchip/irq-ingenic.c 
> b/drivers/irqchip/irq-ingenic.c
> index f126255..06fa810 100644
> --- a/drivers/irqchip/irq-ingenic.c
> +++ b/drivers/irqchip/irq-ingenic.c
> @@ -10,7 +10,6 @@
>  #include <linux/interrupt.h>
>  #include <linux/ioport.h>
>  #include <linux/irqchip.h>
> -#include <linux/irqchip/ingenic.h>
>  #include <linux/of_address.h>
>  #include <linux/of_irq.h>
>  #include <linux/timex.h>
> @@ -50,26 +49,6 @@ static irqreturn_t intc_cascade(int irq, void 
> *data)
>  	return IRQ_HANDLED;
>  }
> 
> -static void intc_irq_set_mask(struct irq_chip_generic *gc, uint32_t 
> mask)
> -{
> -	struct irq_chip_regs *regs = &gc->chip_types->regs;
> -
> -	writel(mask, gc->reg_base + regs->enable);
> -	writel(~mask, gc->reg_base + regs->disable);
> -}
> -
> -void ingenic_intc_irq_suspend(struct irq_data *data)
> -{
> -	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
> -	intc_irq_set_mask(gc, gc->wake_active);
> -}
> -
> -void ingenic_intc_irq_resume(struct irq_data *data)
> -{
> -	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
> -	intc_irq_set_mask(gc, gc->mask_cache);
> -}
> -
>  static struct irqaction intc_cascade_action = {
>  	.handler = intc_cascade,
>  	.name = "SoC intc cascade interrupt",
> @@ -127,8 +106,7 @@ static int __init ingenic_intc_of_init(struct 
> device_node *node,
>  		ct->chip.irq_mask = irq_gc_mask_disable_reg;
>  		ct->chip.irq_mask_ack = irq_gc_mask_disable_reg;
>  		ct->chip.irq_set_wake = irq_gc_set_wake;
> -		ct->chip.irq_suspend = ingenic_intc_irq_suspend;
> -		ct->chip.irq_resume = ingenic_intc_irq_resume;
> +		ct->chip.flags = IRQCHIP_MASK_ON_SUSPEND;
> 
>  		irq_setup_generic_chip(gc, IRQ_MSK(32), 0, 0,
>  				       IRQ_NOPROBE | IRQ_LEVEL);
> diff --git a/include/linux/irqchip/ingenic.h 
> b/include/linux/irqchip/ingenic.h
> deleted file mode 100644
> index 1465588..0000000
> --- a/include/linux/irqchip/ingenic.h
> +++ /dev/null
> @@ -1,14 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0-or-later */
> -/*
> - *  Copyright (C) 2010, Lars-Peter Clausen <lars@...afoo.de>
> - */
> -
> -#ifndef __LINUX_IRQCHIP_INGENIC_H__
> -#define __LINUX_IRQCHIP_INGENIC_H__
> -
> -#include <linux/irq.h>
> -
> -extern void ingenic_intc_irq_suspend(struct irq_data *data);
> -extern void ingenic_intc_irq_resume(struct irq_data *data);
> -
> -#endif
> --
> 2.7.4
> 
>