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Date: Mon, 16 Jul 2012 23:26:37 +0200
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: Linux PM list <linux-pm@...r.kernel.org>
Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com>,
LKML <linux-kernel@...r.kernel.org>,
Matthew Garrett <mjg59@...f.ucam.org>,
Magnus Damm <magnus.damm@...il.com>,
Arnd Bergmann <arnd@...db.de>,
Grant Likely <grant.likely@...retlab.ca>,
"Linux-sh list" <linux-sh@...r.kernel.org>
Subject: [RFC][PATCH 9/14] ARM: shmobile: Move sh7372's PM domain objects to a table
From: Rafael J. Wysocki <rjw@...k.pl>
Instead of giving a name to every sh7372's PM domain object, put them
all into a table and use rmobile_init_domains(), introduced by a
previous patch, for initializing them all altogether. Also, use
pm_genpd_add_subdomain_names() for adding subdomains to the PM
domains and pm_genpd_poweron_name() for turning on the A4S domain
when preparing for system suspend.
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
arch/arm/mach-shmobile/include/mach/sh7372.h | 18 +---
arch/arm/mach-shmobile/pm-sh7372.c | 109 +++++++++++++--------------
arch/arm/mach-shmobile/setup-sh7372.c | 16 ---
3 files changed, 63 insertions(+), 80 deletions(-)
Index: linux/arch/arm/mach-shmobile/pm-sh7372.c
===================================================================
--- linux.orig/arch/arm/mach-shmobile/pm-sh7372.c
+++ linux/arch/arm/mach-shmobile/pm-sh7372.c
@@ -71,21 +71,6 @@
#ifdef CONFIG_PM
-struct rmobile_pm_domain sh7372_pd_a4lc = {
- .genpd.name = "A4LC",
- .bit_shift = 1,
-};
-
-struct rmobile_pm_domain sh7372_pd_a4mp = {
- .genpd.name = "A4MP",
- .bit_shift = 2,
-};
-
-struct rmobile_pm_domain sh7372_pd_d4 = {
- .genpd.name = "D4",
- .bit_shift = 3,
-};
-
static int sh7372_a4r_pd_suspend(void)
{
sh7372_intcs_suspend();
@@ -93,40 +78,15 @@ static int sh7372_a4r_pd_suspend(void)
return 0;
}
-struct rmobile_pm_domain sh7372_pd_a4r = {
- .genpd.name = "A4R",
- .bit_shift = 5,
- .suspend = sh7372_a4r_pd_suspend,
- .resume = sh7372_intcs_resume,
-};
-
-struct rmobile_pm_domain sh7372_pd_a3rv = {
- .genpd.name = "A3RV",
- .bit_shift = 6,
-};
-
-struct rmobile_pm_domain sh7372_pd_a3ri = {
- .genpd.name = "A3RI",
- .bit_shift = 8,
-};
-
-static int sh7372_pd_a4s_suspend(void)
+static int sh7372_a4s_pd_suspend(void)
{
/*
* The A4S domain contains the CPU core and therefore it should
- * only be turned off if the CPU is in use.
+ * only be turned off if the CPU is not in use.
*/
return -EBUSY;
}
-struct rmobile_pm_domain sh7372_pd_a4s = {
- .genpd.name = "A4S",
- .bit_shift = 10,
- .gov = &pm_domain_always_on_gov,
- .no_debug = true,
- .suspend = sh7372_pd_a4s_suspend,
-};
-
static int sh7372_a3sp_pd_suspend(void)
{
/*
@@ -136,18 +96,61 @@ static int sh7372_a3sp_pd_suspend(void)
return console_suspend_enabled ? 0 : -EBUSY;
}
-struct rmobile_pm_domain sh7372_pd_a3sp = {
- .genpd.name = "A3SP",
- .bit_shift = 11,
- .gov = &pm_domain_always_on_gov,
- .no_debug = true,
- .suspend = sh7372_a3sp_pd_suspend,
+static struct rmobile_pm_domain sh7372_pm_domains[] = {
+ {
+ .genpd.name = "A4LC",
+ .bit_shift = 1,
+ },
+ {
+ .genpd.name = "A4MP",
+ .bit_shift = 2,
+ },
+ {
+ .genpd.name = "D4",
+ .bit_shift = 3,
+ },
+ {
+ .genpd.name = "A4R",
+ .bit_shift = 5,
+ .suspend = sh7372_a4r_pd_suspend,
+ .resume = sh7372_intcs_resume,
+ },
+ {
+ .genpd.name = "A3RV",
+ .bit_shift = 6,
+ },
+ {
+ .genpd.name = "A3RI",
+ .bit_shift = 8,
+ },
+ {
+ .genpd.name = "A4S",
+ .bit_shift = 10,
+ .gov = &pm_domain_always_on_gov,
+ .no_debug = true,
+ .suspend = sh7372_a4s_pd_suspend,
+ },
+ {
+ .genpd.name = "A3SP",
+ .bit_shift = 11,
+ .gov = &pm_domain_always_on_gov,
+ .no_debug = true,
+ .suspend = sh7372_a3sp_pd_suspend,
+ },
+ {
+ .genpd.name = "A3SG",
+ .bit_shift = 13,
+ },
};
-struct rmobile_pm_domain sh7372_pd_a3sg = {
- .genpd.name = "A3SG",
- .bit_shift = 13,
-};
+void __init sh7372_init_pm_domains(void)
+{
+ rmobile_init_domains(sh7372_pm_domains, ARRAY_SIZE(sh7372_pm_domains));
+ pm_genpd_add_subdomain_names("A4LC", "A3RV");
+ pm_genpd_add_subdomain_names("A4R", "A4LC");
+ pm_genpd_add_subdomain_names("A4S", "A3SG");
+ pm_genpd_add_subdomain_names("A4S", "A3SP");
+}
#endif /* CONFIG_PM */
@@ -331,7 +334,7 @@ static int sh7372_pm_notifier_fn(struct
* executed during system suspend and resume, respectively, so
* that those functions don't crash while accessing the INTCS.
*/
- pm_genpd_poweron(&sh7372_pd_a4r.genpd);
+ pm_genpd_name_poweron("A4R");
break;
case PM_POST_SUSPEND:
pm_genpd_poweroff_unused();
Index: linux/arch/arm/mach-shmobile/setup-sh7372.c
===================================================================
--- linux.orig/arch/arm/mach-shmobile/setup-sh7372.c
+++ linux/arch/arm/mach-shmobile/setup-sh7372.c
@@ -1001,21 +1001,7 @@ static struct platform_device *sh7372_la
void __init sh7372_add_standard_devices(void)
{
- rmobile_init_pm_domain(&sh7372_pd_a4lc);
- rmobile_init_pm_domain(&sh7372_pd_a4mp);
- rmobile_init_pm_domain(&sh7372_pd_d4);
- rmobile_init_pm_domain(&sh7372_pd_a4r);
- rmobile_init_pm_domain(&sh7372_pd_a3rv);
- rmobile_init_pm_domain(&sh7372_pd_a3ri);
- rmobile_init_pm_domain(&sh7372_pd_a4s);
- rmobile_init_pm_domain(&sh7372_pd_a3sp);
- rmobile_init_pm_domain(&sh7372_pd_a3sg);
-
- pm_genpd_add_subdomain_names("A4LC", "A3RV");
- pm_genpd_add_subdomain_names("A4R", "A4LC");
-
- pm_genpd_add_subdomain_names("A4S", "A3SG");
- pm_genpd_add_subdomain_names("A4S", "A3SP");
+ sh7372_init_pm_domains();
platform_add_devices(sh7372_early_devices,
ARRAY_SIZE(sh7372_early_devices));
Index: linux/arch/arm/mach-shmobile/include/mach/sh7372.h
===================================================================
--- linux.orig/arch/arm/mach-shmobile/include/mach/sh7372.h
+++ linux/arch/arm/mach-shmobile/include/mach/sh7372.h
@@ -478,21 +478,15 @@ extern struct clk sh7372_fsibck_clk;
extern struct clk sh7372_fsidiva_clk;
extern struct clk sh7372_fsidivb_clk;
-#ifdef CONFIG_PM
-extern struct rmobile_pm_domain sh7372_pd_a4lc;
-extern struct rmobile_pm_domain sh7372_pd_a4mp;
-extern struct rmobile_pm_domain sh7372_pd_d4;
-extern struct rmobile_pm_domain sh7372_pd_a4r;
-extern struct rmobile_pm_domain sh7372_pd_a3rv;
-extern struct rmobile_pm_domain sh7372_pd_a3ri;
-extern struct rmobile_pm_domain sh7372_pd_a4s;
-extern struct rmobile_pm_domain sh7372_pd_a3sp;
-extern struct rmobile_pm_domain sh7372_pd_a3sg;
-#endif /* CONFIG_PM */
-
extern void sh7372_intcs_suspend(void);
extern void sh7372_intcs_resume(void);
extern void sh7372_intca_suspend(void);
extern void sh7372_intca_resume(void);
+#ifdef CONFIG_PM
+extern void __init sh7372_init_pm_domains(void);
+#else
+static inline void sh7372_init_pm_domains(void) {}
+#endif
+
#endif /* __ASM_SH7372_H__ */
--
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