ARM: shmobile: r8a7740: add A3SP pm domain support

This patch adds basic A3SP pm domain support.
Now, below devices can be controled by PM

DMAC1/2/3, IPMMU, DDM, FLCTL, SYS-HPB, BBIF1, MSIOF1/2,
SCIFA,SCIFB, IIC1, IrDA, USBH, USBDMAC, SDHI0/1/2, TPU,
DREQPAK (Sys),  MMCIF, RSPI, SIM, USBF

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>

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7740.h b/arch/arm/mach-shmobile/include/mach/r8a7740.h
index e8c87e9..a5691cf 100644 (file)
--- a/arch/arm/mach-shmobile/include/mach/r8a7740.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7740.h
@@ -608,6 +608,7 @@ enum {
 
 #ifdef CONFIG_PM
 extern struct rmobile_pm_domain r8a7740_pd_a4s;
+extern struct rmobile_pm_domain r8a7740_pd_a3sp;
 #endif /* CONFIG_PM */
 
 #endif /* __ASM_R8A7740_H__ */

diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c
index d2fe815..de7c621 100644 (file)
--- a/arch/arm/mach-shmobile/pm-r8a7740.c
+++ b/arch/arm/mach-shmobile/pm-r8a7740.c
@@ -8,6 +8,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
+#include <linux/console.h>
 #include <mach/pm-rmobile.h>
 
 #ifdef CONFIG_PM
@@ -27,4 +28,22 @@ struct rmobile_pm_domain r8a7740_pd_a4s = {
        .no_debug       = true,
        .suspend        = r8a7740_pd_a4s_suspend,
 };
+
+static int r8a7740_pd_a3sp_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 r8a7740_pd_a3sp = {
+       .genpd.name     = "A3SP",
+       .bit_shift      = 11,
+       .gov            = &pm_domain_always_on_gov,
+       .no_debug       = true,
+       .suspend        = r8a7740_pd_a3sp_suspend,
+};
+
 #endif /* CONFIG_PM */

diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c
index c37ad75..59c7941 100644 (file)
--- a/arch/arm/mach-shmobile/setup-r8a7740.c
+++ b/arch/arm/mach-shmobile/setup-r8a7740.c
@@ -674,12 +674,28 @@ void __init r8a7740_add_standard_devices(void)
 
        /* PM domain */
        rmobile_init_pm_domain(&r8a7740_pd_a4s);
+       rmobile_init_pm_domain(&r8a7740_pd_a3sp);
+
+       rmobile_pm_add_subdomain(&r8a7740_pd_a4s, &r8a7740_pd_a3sp);
 
        /* add devices */
        platform_add_devices(r8a7740_early_devices,
                            ARRAY_SIZE(r8a7740_early_devices));
        platform_add_devices(r8a7740_late_devices,
                             ARRAY_SIZE(r8a7740_late_devices));
+
+       /* add devices to PM domain  */
+
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &scif0_device);
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &scif1_device);
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &scif2_device);
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &scif3_device);
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &scif4_device);
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &scif5_device);
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &scif6_device);
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &scif7_device);
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &scifb_device);
+       rmobile_add_device_to_domain(&r8a7740_pd_a3sp,  &i2c1_device);
 }
 
 static void __init r8a7740_earlytimer_init(void)