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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2012-07-05 12:28:32 +0400
committerRafael J. Wysocki <rjw@sisk.pl>2012-07-06 22:53:38 +0400
commitb9299a72702adc6d4d52a7425689255784431daa (patch)
tree34a87868f69cf5dd4758556c0757a1a0725d3539 /arch/arm/mach-shmobile/pm-sh7372.c
parentde5c094a902d58eb9372aa648c6a7c22cff129fd (diff)
downloadlinux-b9299a72702adc6d4d52a7425689255784431daa.tar.xz
ARM: shmobile: sh7372: add pm-rmobile domain support
This patch adds pm-rmobile common API base PM domain. sh7372 CPU/platform will switch to using it from original implementation Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'arch/arm/mach-shmobile/pm-sh7372.c')
-rw-r--r--arch/arm/mach-shmobile/pm-sh7372.c84
1 files changed, 82 insertions, 2 deletions
diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c
index a38be7f06d6a..3b131c7a79d0 100644
--- a/arch/arm/mach-shmobile/pm-sh7372.c
+++ b/arch/arm/mach-shmobile/pm-sh7372.c
@@ -26,6 +26,7 @@
#include <asm/suspend.h>
#include <mach/common.h>
#include <mach/sh7372.h>
+#include <mach/pm-rmobile.h>
/* DBG */
#define DBGREG1 0xe6100020
@@ -290,6 +291,85 @@ struct sh7372_pm_domain sh7372_a3sg = {
.genpd.name = "A3SG",
.bit_shift = 13,
};
+
+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();
+ __raw_writel(0x300fffff, WUPRMSK); /* avoid wakeup */
+ 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)
+{
+ /*
+ * The A4S domain contains the CPU core and therefore it should
+ * only be turned off if the CPU is 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)
+{
+ /*
+ * Serial consoles make use of SCIF hardware located in A3SP,
+ * keep such power domain on if "no_console_suspend" is set.
+ */
+ 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,
+};
+
+struct rmobile_pm_domain sh7372_pd_a3sg = {
+ .genpd.name = "A3SG",
+ .bit_shift = 13,
+};
+
#endif /* CONFIG_PM */
#if defined(CONFIG_SUSPEND) || defined(CONFIG_CPU_IDLE)
@@ -531,7 +611,7 @@ static int sh7372_enter_suspend(suspend_state_t suspend_state)
/* check active clocks to determine potential wakeup sources */
if (sh7372_sysc_valid(&msk, &msk2)) {
if (!console_suspend_enabled &&
- sh7372_a4s.genpd.status == GPD_STATE_POWER_OFF) {
+ sh7372_pd_a4s.genpd.status == GPD_STATE_POWER_OFF) {
/* convert INTC mask/sense to SYSC mask/sense */
sh7372_setup_sysc(msk, msk2);
@@ -565,7 +645,7 @@ static int sh7372_pm_notifier_fn(struct notifier_block *notifier,
* executed during system suspend and resume, respectively, so
* that those functions don't crash while accessing the INTCS.
*/
- pm_genpd_poweron(&sh7372_a4r.genpd);
+ pm_genpd_poweron(&sh7372_pd_a4r.genpd);
break;
case PM_POST_SUSPEND:
pm_genpd_poweroff_unused();