From mboxrd@z Thu Jan  1 00:00:00 1970
From: l.stach@pengutronix.de (Lucas Stach)
Date: Tue, 23 Jan 2018 14:47:36 +0100
Subject: [PATCH 1/2] soc: imx: gpc: ARM power domain should be always-on
In-Reply-To: <1516725734-32745-1-git-send-email-Anson.Huang@nxp.com>
References: <1516725734-32745-1-git-send-email-Anson.Huang@nxp.com>
Message-ID: <1516715256.25726.22.camel@pengutronix.de>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Am Mittwoch, den 24.01.2018, 00:42 +0800 schrieb Anson Huang:
> ARM power domain does NOT support runtime off, always-on
> flag should be set to avoid incorrect power state in
> pm_genpd_summary:
> 
> Before:
> 
> root at imx6qpdlsolox:~# cat /sys/kernel/debug/pm_genpd/pm_genpd_summary
> domain??????????????????????????status??????????slaves
> ????/device?????????????????????????????????????????????runtime status
> ----------------------------------------------------------------------
> ARM?????????????????????????????off-0
> 
> After:
> 
> root at imx6qpdlsolox:~# cat /sys/kernel/debug/pm_genpd/pm_genpd_summary
> domain??????????????????????????status??????????slaves
> ????/device?????????????????????????????????????????????runtime status
> ----------------------------------------------------------------------
> ARM?????????????????????????????on
> 
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>

> ---
> ?drivers/soc/imx/gpc.c | 1 +
> ?1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/soc/imx/gpc.c b/drivers/soc/imx/gpc.c
> index 53f7275..6cafa9b 100644
> --- a/drivers/soc/imx/gpc.c
> +++ b/drivers/soc/imx/gpc.c
> @@ -254,6 +254,7 @@ static struct imx_pm_domain imx_gpc_domains[] = {
> > ?	{
> > ?		.base = {
> > ?			.name = "ARM",
> > +			.flags = GENPD_FLAG_ALWAYS_ON,
> > ?		},
> > ?	}, {
> > ?		.base = {