RE: [PATCH 1/4] arm64: Enable TIMER_IMX_SYS_CTR for ARCH_MXC platforms

[Anson Huang]

Hi, Shawn

> -----Original Message-----
> From: Shawn Guo <shawnguo@xxxxxxxxxx>
> Sent: Monday, June 24, 2019 10:22 AM
> To: Anson Huang <anson.huang@xxxxxxx>
> Cc: catalin.marinas@xxxxxxx; will@xxxxxxxxxx; robh+dt@xxxxxxxxxx;
> mark.rutland@xxxxxxx; s.hauer@xxxxxxxxxxxxxx; kernel@xxxxxxxxxxxxxx;
> festevam@xxxxxxxxx; mturquette@xxxxxxxxxxxx; sboyd@xxxxxxxxxx;
> Leonard Crestez <leonard.crestez@xxxxxxx>; Aisheng Dong
> <aisheng.dong@xxxxxxx>; Jacky Bai <ping.bai@xxxxxxx>; Daniel Baluta
> <daniel.baluta@xxxxxxx>; Peng Fan <peng.fan@xxxxxxx>; Abel Vesa
> <abel.vesa@xxxxxxx>; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-
> clk@xxxxxxxxxxxxxxx; dl-linux-imx <linux-imx@xxxxxxx>
> Subject: Re: [PATCH 1/4] arm64: Enable TIMER_IMX_SYS_CTR for ARCH_MXC
> platforms
> 
> On Fri, Jun 21, 2019 at 03:07:17PM +0800, Anson.Huang@xxxxxxx wrote:
> > From: Anson Huang <Anson.Huang@xxxxxxx>
> >
> > ARCH_MXC platforms needs system counter as broadcast timer to support
> > cpuidle, enable it by default.
> >
> > Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
> > ---
> >  arch/arm64/Kconfig.platforms | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arm64/Kconfig.platforms
> > b/arch/arm64/Kconfig.platforms index 4778c77..f5e623f 100644
> > --- a/arch/arm64/Kconfig.platforms
> > +++ b/arch/arm64/Kconfig.platforms
> > @@ -173,6 +173,7 @@ config ARCH_MXC
> >  	select PM
> >  	select PM_GENERIC_DOMAINS
> >  	select SOC_BUS
> > +	select TIMER_IMX_SYS_CTR
> 
> Where is that driver?

The driver is drivers/clocksource/timer-imx-sysctr.c, similar function as GPT.

Thanks,
Anson

> 
> Shawn
> 
> >  	help
> >  	  This enables support for the ARMv8 based SoCs in the
> >  	  NXP i.MX family.
> > --
> > 2.7.4
> >