Re: [PATCH v6 07/11] ARM: sun9i: smp: Rename clusters's power-off

Mylène Josserand
2018-04-18T05:51:51Z

Hello,

On Tue, 17 Apr 2018 11:21:02 +0300
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> wrote:

> Hello!
>
> On 4/17/2018 12:50 AM, Mylène Josserand wrote:
>
> > To prepare the support for sun8i-a83t, rename the variable name
>
> s/variable/macro/ maybe? Also "rename the ... name" sounds tautological...

Thank you for the correction.

Best regards,

Mylène

--
Mylène Josserand, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com

>
> > that handles the power-off of clusters because it is different from
> > sun9i-a80 to sun8i-a83t.
> >
> > The power off register for clusters are different from a80 and a83t.
> >
> > Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
> > Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
> > Reviewed-by: Chen-Yu Tsai <wens@csie.org>
> > ---
> > arch/arm/mach-sunxi/mc_smp.c | 6 +++---
> > 1 file changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/arch/arm/mach-sunxi/mc_smp.c b/arch/arm/mach-sunxi/mc_smp.c
> > index 727968d6a3e5..03f021d0c73e 100644
> > --- a/arch/arm/mach-sunxi/mc_smp.c
> > +++ b/arch/arm/mach-sunxi/mc_smp.c
> > @@ -60,7 +60,7 @@
> > #define PRCM_CPU_PO_RST_CTRL_CORE(n) BIT(n)
> > #define PRCM_CPU_PO_RST_CTRL_CORE_ALL 0xf
> > #define PRCM_PWROFF_GATING_REG(c) (0x100 + 0x4 * (c))
> > -#define PRCM_PWROFF_GATING_REG_CLUSTER BIT(4)
> > +#define PRCM_PWROFF_GATING_REG_CLUSTER_SUN9I BIT(4)
> > #define PRCM_PWROFF_GATING_REG_CORE(n) BIT(n)
> > #define PRCM_PWR_SWITCH_REG(c, cpu) (0x140 + 0x10 * (c) + 0x4 * (cpu))
> > #define PRCM_CPU_SOFT_ENTRY_REG 0x164
> > @@ -255,7 +255,7 @@ static int sunxi_cluster_powerup(unsigned int cluster)
> >
> > /* clear cluster power gate */
> > reg = readl(prcm_base + PRCM_PWROFF_GATING_REG(cluster));
> > - reg &= ~PRCM_PWROFF_GATING_REG_CLUSTER;
> > + reg &= ~PRCM_PWROFF_GATING_REG_CLUSTER_SUN9I;
> > writel(reg, prcm_base + PRCM_PWROFF_GATING_REG(cluster));
> > udelay(20);
> >
> > @@ -452,7 +452,7 @@ static int sunxi_cluster_powerdown(unsigned int cluster)
> > /* gate cluster power */
> > pr_debug("%s: gate cluster power\n", __func__);
> > reg = readl(prcm_base + PRCM_PWROFF_GATING_REG(cluster));
> > - reg |= PRCM_PWROFF_GATING_REG_CLUSTER;
> > + reg |= PRCM_PWROFF_GATING_REG_CLUSTER_SUN9I;
> > writel(reg, prcm_base + PRCM_PWROFF_GATING_REG(cluster));
> > udelay(20);
> >
>
> MBR, Sergei