linux-kernel - [PATCH RFC 02/10] ARM: s3c64xx: pm: Add always_on field to s3c64xx_pm

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Message-Id: <1389469372-17199-3-git-send-email-tomasz.figa@gmail.com>
Date:	Sat, 11 Jan 2014 20:42:44 +0100
From:	Tomasz Figa <tomasz.figa@...il.com>
To:	linux-pm@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
	Russell King <linux@....linux.org.uk>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Tomasz Figa <t.figa@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>
Subject: [PATCH RFC 02/10] ARM: s3c64xx: pm: Add always_on field to s3c64xx_pm_domain struct

This patch adds always_on field to s3c64xx_pm_domain struct to allow
handling registration of all domains in the same way, without the need
to have separate arrays for normal and always on domains.

Signed-off-by: Tomasz Figa <tomasz.figa@...il.com>
---
 arch/arm/mach-s3c64xx/pm.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index 5238d66..605bfa9 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -35,6 +35,7 @@
 #include "regs-syscon-power.h"
 
 struct s3c64xx_pm_domain {
+	bool always_on;
 	u32 ena;
 	u32 pwr_stat;
 	struct generic_pm_domain pd;
@@ -84,6 +85,7 @@ static int s3c64xx_pd_on(struct generic_pm_domain *domain)
 }
 
 static struct s3c64xx_pm_domain s3c64xx_pm_irom = {
+	.always_on = true,
 	.ena = S3C64XX_NORMALCFG_IROM_ON,
 	.pd = {
 		.name = "domain_irom",
@@ -161,11 +163,8 @@ static struct s3c64xx_pm_domain s3c64xx_pm_v = {
 	},
 };
 
-static struct s3c64xx_pm_domain *s3c64xx_always_on_pm_domains[] = {
-	&s3c64xx_pm_irom,
-};
-
 static struct s3c64xx_pm_domain *s3c64xx_pm_domains[] = {
+	&s3c64xx_pm_irom,
 	&s3c64xx_pm_etm,
 	&s3c64xx_pm_g,
 	&s3c64xx_pm_v,
@@ -311,12 +310,16 @@ int __init s3c64xx_pm_init(void)
 
 	s3c_pm_init();
 
-	for (i = 0; i < ARRAY_SIZE(s3c64xx_always_on_pm_domains); i++)
-		pm_genpd_init(&s3c64xx_always_on_pm_domains[i]->pd,
-			      &pm_domain_always_on_gov, false);
 
-	for (i = 0; i < ARRAY_SIZE(s3c64xx_pm_domains); i++)
-		pm_genpd_init(&s3c64xx_pm_domains[i]->pd, NULL, false);
+	for (i = 0; i < ARRAY_SIZE(s3c64xx_pm_domains); i++) {
+		struct s3c64xx_pm_domain *pd = s3c64xx_pm_domains[i];
+		struct dev_power_governor *gov = NULL;
+
+		if (pd->always_on)
+			gov = &pm_domain_always_on_gov;
+
+		pm_genpd_init(&pd->pd, gov, false);
+	}
 
 #ifdef CONFIG_S3C_DEV_FB
 	if (dev_get_platdata(&s3c_device_fb.dev))
-- 
1.8.5.2

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