linux-kernel - Re: [PATCH v4 33/37] ARM: davinci: cp-intc: use readl/writel

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Date:   Mon, 18 Feb 2019 09:12:23 +0100
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     David Lechner <david@...hnology.com>
Cc:     Bartosz Golaszewski <brgl@...ev.pl>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Sekhar Nori <nsekhar@...com>,
        Kevin Hilman <khilman@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        arm-soc <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 33/37] ARM: davinci: cp-intc: use readl/writel_relaxed()

niedz., 17 lut 2019 o 11:01 David Lechner <david@...hnology.com> napisał(a):
>
> On 2/14/19 8:52 AM, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> >
> > Raplace all calls to __raw_readl() & __raw_writel() with readl_relaxed()
>
> s/Raplace/Replace/
>
> > and writel_relaxed() respectively. It's safe to do as there's no
> > endianness conversion being done in the code.
>
> Should this be combined with patch 14/37?
>

No, this is for cp-intc and the other one is for aintc. I'd keep them separate.

Bart

> >
> > Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
> > ---
> >   arch/arm/mach-davinci/cp_intc.c | 4 ++--
> >   1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/arm/mach-davinci/cp_intc.c b/arch/arm/mach-davinci/cp_intc.c
> > index 1bf11fa8be76..f88b7f0978aa 100644
> > --- a/arch/arm/mach-davinci/cp_intc.c
> > +++ b/arch/arm/mach-davinci/cp_intc.c
> > @@ -45,13 +45,13 @@ static struct irq_domain *davinci_cp_intc_irq_domain;
> >
> >   static inline unsigned int davinci_cp_intc_read(unsigned int offset)
> >   {
> > -     return __raw_readl(davinci_cp_intc_base + offset);
> > +     return readl_relaxed(davinci_cp_intc_base + offset);
> >   }
> >
> >   static inline void davinci_cp_intc_write(unsigned long value,
> >                                        unsigned int offset)
> >   {
> > -     __raw_writel(value, davinci_cp_intc_base + offset);
> > +     writel_relaxed(value, davinci_cp_intc_base + offset);
> >   }
> >
> >   static void davinci_cp_intc_ack_irq(struct irq_data *d)
> >