From: Magnus Damm <damm@xxxxxxxxxx>
This patch contains sh7722 processor specific Runtime PM code
along with some Migo-R board code that deals with sh7722.
For each platform device within the SoC a hwblk id is added
to the architecture specific platform device data area. The
hwblk code for sh7722 which is invoked by cpuidle is extended
in a hackish way to tell the system to start driver suspending.
Signed-off-by: Magnus Damm <damm@xxxxxxxxxx>
---
arch/sh/boards/mach-migor/setup.c | 9 +++++++++
arch/sh/kernel/cpu/sh4a/hwblk-sh7722.c | 10 +++++++++-
arch/sh/kernel/cpu/sh4a/setup-sh7722.c | 31 +++++++++++++++++++++++++++++++
3 files changed, 49 insertions(+), 1 deletion(-)
--- 0001/arch/sh/boards/mach-migor/setup.c
+++ work/arch/sh/boards/mach-migor/setup.c 2009-07-09 18:43:42.000000000 +0900
@@ -98,6 +98,9 @@ static struct platform_device sh_keysc_d
.dev = {
.platform_data = &sh_keysc_info,
},
+ .archdata = {
+ .hw_blk_id = HWBLK_KEYSC,
+ },
};
static struct mtd_partition migor_nor_flash_partitions[] =
@@ -292,6 +295,9 @@ static struct platform_device migor_lcdc
.dev = {
.platform_data = &sh_mobile_lcdc_info,
},
+ .archdata = {
+ .hw_blk_id = HWBLK_LCDC,
+ },
};
static struct clk *camera_clk;
@@ -379,6 +385,9 @@ static struct platform_device migor_ceu_
.dev = {
.platform_data = &sh_mobile_ceu_info,
},
+ .archdata = {
+ .hw_blk_id = HWBLK_CEU,
+ },
};
struct spi_gpio_platform_data sdcard_cn9_platform_data = {
--- 0005/arch/sh/kernel/cpu/sh4a/hwblk-sh7722.c
+++ work/arch/sh/kernel/cpu/sh4a/hwblk-sh7722.c 2009-07-09 18:44:44.000000000 +0900
@@ -89,10 +89,18 @@ static struct hwblk_info sh7722_hwblk_in
.nr_hwblks = ARRAY_SIZE(sh7722_hwblk),
};
+void platform_pm_runtime_suspend_idle(void); /* FIXME */
+
int arch_hwblk_sleep_mode(void)
{
- if (!sh7722_hwblk_area[CORE_AREA].cnt[HWBLK_CNT_USAGE])
+ if (!sh7722_hwblk_area[CORE_AREA].cnt[HWBLK_CNT_USAGE]) {
+ if (sh7722_hwblk_area[CORE_AREA].cnt[HWBLK_CNT_IDLE])
+ platform_pm_runtime_suspend_idle();
+ else
+ return SUSP_SH_USTANDBY | SUSP_SH_SF;
+
return SUSP_SH_STANDBY | SUSP_SH_SF;
+ }
if (!sh7722_hwblk_area[CORE_AREA_BM].cnt[HWBLK_CNT_USAGE])
return SUSP_SH_SLEEP | SUSP_SH_SF;
--- 0001/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+++ work/arch/sh/kernel/cpu/sh4a/setup-sh7722.c 2009-07-09 18:43:36.000000000 +0900
@@ -16,6 +16,7 @@
#include <linux/sh_timer.h>
#include <asm/clock.h>
#include <asm/mmzone.h>
+#include <cpu/sh7722.h>
static struct resource rtc_resources[] = {
[0] = {
@@ -45,6 +46,9 @@ static struct platform_device rtc_device
.id = -1,
.num_resources = ARRAY_SIZE(rtc_resources),
.resource = rtc_resources,
+ .archdata = {
+ .hw_blk_id = HWBLK_RTC,
+ },
};
static struct resource usbf_resources[] = {
@@ -70,6 +74,9 @@ static struct platform_device usbf_devic
},
.num_resources = ARRAY_SIZE(usbf_resources),
.resource = usbf_resources,
+ .archdata = {
+ .hw_blk_id = HWBLK_USBF,
+ },
};
static struct resource iic_resources[] = {
@@ -91,6 +98,9 @@ static struct platform_device iic_device
.id = 0, /* "i2c0" clock */
.num_resources = ARRAY_SIZE(iic_resources),
.resource = iic_resources,
+ .archdata = {
+ .hw_blk_id = HWBLK_IIC,
+ },
};
static struct uio_info vpu_platform_data = {
@@ -119,6 +129,9 @@ static struct platform_device vpu_device
},
.resource = vpu_resources,
.num_resources = ARRAY_SIZE(vpu_resources),
+ .archdata = {
+ .hw_blk_id = HWBLK_VPU,
+ },
};
static struct uio_info veu_platform_data = {
@@ -147,6 +160,9 @@ static struct platform_device veu_device
},
.resource = veu_resources,
.num_resources = ARRAY_SIZE(veu_resources),
+ .archdata = {
+ .hw_blk_id = HWBLK_VEU,
+ },
};
static struct uio_info jpu_platform_data = {
@@ -175,6 +191,9 @@ static struct platform_device jpu_device
},
.resource = jpu_resources,
.num_resources = ARRAY_SIZE(jpu_resources),
+ .archdata = {
+ .hw_blk_id = HWBLK_JPU,
+ },
};
static struct sh_timer_config cmt_platform_data = {
@@ -207,6 +226,9 @@ static struct platform_device cmt_device
},
.resource = cmt_resources,
.num_resources = ARRAY_SIZE(cmt_resources),
+ .archdata = {
+ .hw_blk_id = HWBLK_CMT,
+ },
};
static struct sh_timer_config tmu0_platform_data = {
@@ -238,6 +260,9 @@ static struct platform_device tmu0_devic
},
.resource = tmu0_resources,
.num_resources = ARRAY_SIZE(tmu0_resources),
+ .archdata = {
+ .hw_blk_id = HWBLK_TMU,
+ },
};
static struct sh_timer_config tmu1_platform_data = {
@@ -269,6 +294,9 @@ static struct platform_device tmu1_devic
},
.resource = tmu1_resources,
.num_resources = ARRAY_SIZE(tmu1_resources),
+ .archdata = {
+ .hw_blk_id = HWBLK_TMU,
+ },
};
static struct sh_timer_config tmu2_platform_data = {
@@ -299,6 +327,9 @@ static struct platform_device tmu2_devic
},
.resource = tmu2_resources,
.num_resources = ARRAY_SIZE(tmu2_resources),
+ .archdata = {
+ .hw_blk_id = HWBLK_TMU,
+ },
};
static struct plat_sci_port sci_platform_data[] = {
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