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-rw-r--r--arch/arm/mach-exynos/Kconfig10
-rw-r--r--arch/arm/mach-exynos/Makefile2
-rw-r--r--arch/arm/mach-exynos/clock-exynos4210.c2
-rw-r--r--arch/arm/mach-exynos/clock-exynos4212.c2
-rw-r--r--arch/arm/mach-exynos/clock.c2
-rw-r--r--arch/arm/mach-exynos/common.c2
-rw-r--r--arch/arm/mach-exynos/dev-pd.c139
-rw-r--r--arch/arm/mach-exynos/mach-exynos4-dt.c8
-rw-r--r--arch/arm/mach-exynos/mach-nuri.c19
-rw-r--r--arch/arm/mach-exynos/mach-origen.c14
-rw-r--r--arch/arm/mach-exynos/mach-smdkv310.c12
-rw-r--r--arch/arm/mach-exynos/mach-universal_c210.c21
-rw-r--r--arch/arm/mach-exynos/pm.c4
-rw-r--r--arch/arm/mach-exynos/pm_domains.c195
14 files changed, 220 insertions, 212 deletions
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 5d602f68a0e8..dfad6538b273 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -34,6 +34,7 @@ config CPU_EXYNOS4210
select ARM_CPU_SUSPEND if PM
select S5P_PM if PM
select S5P_SLEEP if PM
+ select PM_GENERIC_DOMAINS
help
Enable EXYNOS4210 CPU support
@@ -74,11 +75,6 @@ config EXYNOS4_SETUP_FIMD0
help
Common setup code for FIMD0.
-config EXYNOS4_DEV_PD
- bool
- help
- Compile in platform device definitions for Power Domain
-
config EXYNOS4_DEV_SYSMMU
bool
help
@@ -195,7 +191,6 @@ config MACH_SMDKV310
select EXYNOS4_DEV_AHCI
select SAMSUNG_DEV_KEYPAD
select EXYNOS4_DEV_DMA
- select EXYNOS4_DEV_PD
select SAMSUNG_DEV_PWM
select EXYNOS4_DEV_USB_OHCI
select EXYNOS4_DEV_SYSMMU
@@ -243,7 +238,6 @@ config MACH_UNIVERSAL_C210
select S5P_DEV_ONENAND
select S5P_DEV_TV
select EXYNOS4_DEV_DMA
- select EXYNOS4_DEV_PD
select EXYNOS4_SETUP_FIMD0
select EXYNOS4_SETUP_I2C1
select EXYNOS4_SETUP_I2C3
@@ -277,7 +271,6 @@ config MACH_NURI
select S5P_DEV_USB_EHCI
select S5P_SETUP_MIPIPHY
select EXYNOS4_DEV_DMA
- select EXYNOS4_DEV_PD
select EXYNOS4_SETUP_FIMC
select EXYNOS4_SETUP_FIMD0
select EXYNOS4_SETUP_I2C1
@@ -310,7 +303,6 @@ config MACH_ORIGEN
select SAMSUNG_DEV_BACKLIGHT
select SAMSUNG_DEV_PWM
select EXYNOS4_DEV_DMA
- select EXYNOS4_DEV_PD
select EXYNOS4_DEV_USB_OHCI
select EXYNOS4_SETUP_FIMD0
select EXYNOS4_SETUP_SDHCI
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 5fc202cdfdb6..d9191f9a7af8 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_CPU_EXYNOS4210) += clock-exynos4210.o
obj-$(CONFIG_SOC_EXYNOS4212) += clock-exynos4212.o
obj-$(CONFIG_PM) += pm.o
+obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_ARCH_EXYNOS4) += pmu.o
@@ -45,7 +46,6 @@ obj-$(CONFIG_MACH_EXYNOS4_DT) += mach-exynos4-dt.o
obj-$(CONFIG_ARCH_EXYNOS4) += dev-audio.o
obj-$(CONFIG_EXYNOS4_DEV_AHCI) += dev-ahci.o
-obj-$(CONFIG_EXYNOS4_DEV_PD) += dev-pd.o
obj-$(CONFIG_EXYNOS4_DEV_SYSMMU) += dev-sysmmu.o
obj-$(CONFIG_EXYNOS4_DEV_DWMCI) += dev-dwmci.o
obj-$(CONFIG_EXYNOS4_DEV_DMA) += dma.o
diff --git a/arch/arm/mach-exynos/clock-exynos4210.c b/arch/arm/mach-exynos/clock-exynos4210.c
index a5823a7f249e..13312ccb2d93 100644
--- a/arch/arm/mach-exynos/clock-exynos4210.c
+++ b/arch/arm/mach-exynos/clock-exynos4210.c
@@ -32,6 +32,7 @@
#include "common.h"
+#ifdef CONFIG_PM_SLEEP
static struct sleep_save exynos4210_clock_save[] = {
SAVE_ITEM(S5P_CLKSRC_IMAGE),
SAVE_ITEM(S5P_CLKSRC_LCD1),
@@ -42,6 +43,7 @@ static struct sleep_save exynos4210_clock_save[] = {
SAVE_ITEM(S5P_CLKGATE_IP_LCD1),
SAVE_ITEM(S5P_CLKGATE_IP_PERIR_4210),
};
+#endif
static struct clksrc_clk *sysclks[] = {
/* nothing here yet */
diff --git a/arch/arm/mach-exynos/clock-exynos4212.c b/arch/arm/mach-exynos/clock-exynos4212.c
index 26a668b0d101..48af28566fa1 100644
--- a/arch/arm/mach-exynos/clock-exynos4212.c
+++ b/arch/arm/mach-exynos/clock-exynos4212.c
@@ -32,12 +32,14 @@
#include "common.h"
+#ifdef CONFIG_PM_SLEEP
static struct sleep_save exynos4212_clock_save[] = {
SAVE_ITEM(S5P_CLKSRC_IMAGE),
SAVE_ITEM(S5P_CLKDIV_IMAGE),
SAVE_ITEM(S5P_CLKGATE_IP_IMAGE_4212),
SAVE_ITEM(S5P_CLKGATE_IP_PERIR_4212),
};
+#endif
static struct clk *clk_src_mpll_user_list[] = {
[0] = &clk_fin_mpll,
diff --git a/arch/arm/mach-exynos/clock.c b/arch/arm/mach-exynos/clock.c
index 5a8c42e90005..187287aa57ab 100644
--- a/arch/arm/mach-exynos/clock.c
+++ b/arch/arm/mach-exynos/clock.c
@@ -30,6 +30,7 @@
#include "common.h"
+#ifdef CONFIG_PM_SLEEP
static struct sleep_save exynos4_clock_save[] = {
SAVE_ITEM(S5P_CLKDIV_LEFTBUS),
SAVE_ITEM(S5P_CLKGATE_IP_LEFTBUS),
@@ -93,6 +94,7 @@ static struct sleep_save exynos4_clock_save[] = {
SAVE_ITEM(S5P_CLKGATE_SCLKCPU),
SAVE_ITEM(S5P_CLKGATE_IP_CPU),
};
+#endif
struct clk clk_sclk_hdmi27m = {
.name = "sclk_hdmi27m",
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 031c1e5b3dfe..93fa2d532e4a 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -394,7 +394,7 @@ void __init exynos4_init_irq(void)
gic_bank_offset = soc_is_exynos4412() ? 0x4000 : 0x8000;
if (!of_have_populated_dt())
- gic_init_bases(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU, gic_bank_offset);
+ gic_init_bases(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU, gic_bank_offset, NULL);
#ifdef CONFIG_OF
else
of_irq_init(exynos4_dt_irq_match);
diff --git a/arch/arm/mach-exynos/dev-pd.c b/arch/arm/mach-exynos/dev-pd.c
deleted file mode 100644
index 3273f25d6a75..000000000000
--- a/arch/arm/mach-exynos/dev-pd.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/* linux/arch/arm/mach-exynos4/dev-pd.c
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- * http://www.samsung.com
- *
- * EXYNOS4 - Power Domain support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-
-#include <mach/regs-pmu.h>
-
-#include <plat/pd.h>
-
-static int exynos4_pd_enable(struct device *dev)
-{
- struct samsung_pd_info *pdata = dev->platform_data;
- u32 timeout;
-
- __raw_writel(S5P_INT_LOCAL_PWR_EN, pdata->base);
-
- /* Wait max 1ms */
- timeout = 10;
- while ((__raw_readl(pdata->base + 0x4) & S5P_INT_LOCAL_PWR_EN)
- != S5P_INT_LOCAL_PWR_EN) {
- if (timeout == 0) {
- printk(KERN_ERR "Power domain %s enable failed.\n",
- dev_name(dev));
- return -ETIMEDOUT;
- }
- timeout--;
- udelay(100);
- }
-
- return 0;
-}
-
-static int exynos4_pd_disable(struct device *dev)
-{
- struct samsung_pd_info *pdata = dev->platform_data;
- u32 timeout;
-
- __raw_writel(0, pdata->base);
-
- /* Wait max 1ms */
- timeout = 10;
- while (__raw_readl(pdata->base + 0x4) & S5P_INT_LOCAL_PWR_EN) {
- if (timeout == 0) {
- printk(KERN_ERR "Power domain %s disable failed.\n",
- dev_name(dev));
- return -ETIMEDOUT;
- }
- timeout--;
- udelay(100);
- }
-
- return 0;
-}
-
-struct platform_device exynos4_device_pd[] = {
- {
- .name = "samsung-pd",
- .id = 0,
- .dev = {
- .platform_data = &(struct samsung_pd_info) {
- .enable = exynos4_pd_enable,
- .disable = exynos4_pd_disable,
- .base = S5P_PMU_MFC_CONF,
- },
- },
- }, {
- .name = "samsung-pd",
- .id = 1,
- .dev = {
- .platform_data = &(struct samsung_pd_info) {
- .enable = exynos4_pd_enable,
- .disable = exynos4_pd_disable,
- .base = S5P_PMU_G3D_CONF,
- },
- },
- }, {
- .name = "samsung-pd",
- .id = 2,
- .dev = {
- .platform_data = &(struct samsung_pd_info) {
- .enable = exynos4_pd_enable,
- .disable = exynos4_pd_disable,
- .base = S5P_PMU_LCD0_CONF,
- },
- },
- }, {
- .name = "samsung-pd",
- .id = 3,
- .dev = {
- .platform_data = &(struct samsung_pd_info) {
- .enable = exynos4_pd_enable,
- .disable = exynos4_pd_disable,
- .base = S5P_PMU_LCD1_CONF,
- },
- },
- }, {
- .name = "samsung-pd",
- .id = 4,
- .dev = {
- .platform_data = &(struct samsung_pd_info) {
- .enable = exynos4_pd_enable,
- .disable = exynos4_pd_disable,
- .base = S5P_PMU_TV_CONF,
- },
- },
- }, {
- .name = "samsung-pd",
- .id = 5,
- .dev = {
- .platform_data = &(struct samsung_pd_info) {
- .enable = exynos4_pd_enable,
- .disable = exynos4_pd_disable,
- .base = S5P_PMU_CAM_CONF,
- },
- },
- }, {
- .name = "samsung-pd",
- .id = 6,
- .dev = {
- .platform_data = &(struct samsung_pd_info) {
- .enable = exynos4_pd_enable,
- .disable = exynos4_pd_disable,
- .base = S5P_PMU_GPS_CONF,
- },
- },
- },
-};
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index 85fa02767d67..e6b02fdf1b09 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -15,11 +15,13 @@
#include <linux/serial_core.h>
#include <asm/mach/arch.h>
+#include <asm/hardware/gic.h>
#include <mach/map.h>
#include <plat/cpu.h>
#include <plat/regs-serial.h>
-#include <plat/exynos4.h>
+
+#include "common.h"
/*
* The following lookup table is used to override device names when devices
@@ -60,7 +62,7 @@ static const struct of_dev_auxdata exynos4210_auxdata_lookup[] __initconst = {
static void __init exynos4210_dt_map_io(void)
{
- s5p_init_io(NULL, 0, S5P_VA_CHIPID);
+ exynos_init_io(NULL, 0);
s3c24xx_init_clocks(24000000);
}
@@ -79,7 +81,9 @@ DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
.init_irq = exynos4_init_irq,
.map_io = exynos4210_dt_map_io,
+ .handle_irq = gic_handle_irq,
.init_machine = exynos4210_dt_machine_init,
.timer = &exynos4_timer,
.dt_compat = exynos4210_dt_compat,
+ .restart = exynos4_restart,
MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index b895ec031105..aa37179d776c 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -220,14 +220,14 @@ static struct s3c_fb_pd_win nuri_fb_win0 = {
.lower_margin = 1,
.hsync_len = 48,
.vsync_len = 3,
- .xres = 1280,
- .yres = 800,
+ .xres = 1024,
+ .yres = 600,
.refresh = 60,
},
.max_bpp = 24,
.default_bpp = 16,
- .virtual_x = 1280,
- .virtual_y = 800,
+ .virtual_x = 1024,
+ .virtual_y = 2 * 600,
};
static struct s3c_fb_platdata nuri_fb_pdata __initdata = {
@@ -1263,9 +1263,6 @@ static struct platform_device *nuri_devices[] __initdata = {
&s5p_device_mfc,
&s5p_device_mfc_l,
&s5p_device_mfc_r,
- &exynos4_device_pd[PD_MFC],
- &exynos4_device_pd[PD_LCD0],
- &exynos4_device_pd[PD_CAM],
&s5p_device_fimc_md,
/* NURI Devices */
@@ -1315,14 +1312,6 @@ static void __init nuri_machine_init(void)
/* Last */
platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices));
- s5p_device_mfc.dev.parent = &exynos4_device_pd[PD_MFC].dev;
- s5p_device_fimd0.dev.parent = &exynos4_device_pd[PD_LCD0].dev;
-
- s5p_device_fimc0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
- s5p_device_fimc1.dev.parent = &exynos4_device_pd[PD_CAM].dev;
- s5p_device_fimc2.dev.parent = &exynos4_device_pd[PD_CAM].dev;
- s5p_device_fimc3.dev.parent = &exynos4_device_pd[PD_CAM].dev;
- s5p_device_mipi_csis0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
}
MACHINE_START(NURI, "NURI")
diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
index 0679b8ad2d1e..fa5c4a59b0aa 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -621,13 +621,6 @@ static struct platform_device *origen_devices[] __initdata = {
&s5p_device_mfc_r,
&s5p_device_mixer,
&exynos4_device_ohci,
- &exynos4_device_pd[PD_LCD0],
- &exynos4_device_pd[PD_TV],
- &exynos4_device_pd[PD_G3D],
- &exynos4_device_pd[PD_LCD1],
- &exynos4_device_pd[PD_CAM],
- &exynos4_device_pd[PD_GPS],
- &exynos4_device_pd[PD_MFC],
&origen_device_gpiokeys,
&origen_lcd_hv070wsa,
};
@@ -695,13 +688,6 @@ static void __init origen_machine_init(void)
platform_add_devices(origen_devices, ARRAY_SIZE(origen_devices));
- s5p_device_fimd0.dev.parent = &exynos4_device_pd[PD_LCD0].dev;
-
- s5p_device_hdmi.dev.parent = &exynos4_device_pd[PD_TV].dev;
- s5p_device_mixer.dev.parent = &exynos4_device_pd[PD_TV].dev;
-
- s5p_device_mfc.dev.parent = &exynos4_device_pd[PD_MFC].dev;
-
samsung_bl_set(&origen_bl_gpio_info, &origen_bl_data);
}
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
index b2c5557f50e4..5258b8563676 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -277,13 +277,6 @@ static struct platform_device *smdkv310_devices[] __initdata = {
&s5p_device_mfc,
&s5p_device_mfc_l,
&s5p_device_mfc_r,
- &exynos4_device_pd[PD_MFC],
- &exynos4_device_pd[PD_G3D],
- &exynos4_device_pd[PD_LCD0],
- &exynos4_device_pd[PD_LCD1],
- &exynos4_device_pd[PD_CAM],
- &exynos4_device_pd[PD_TV],
- &exynos4_device_pd[PD_GPS],
&exynos4_device_spdif,
&exynos4_device_sysmmu,
&samsung_asoc_dma,
@@ -336,10 +329,6 @@ static void s5p_tv_setup(void)
WARN_ON(gpio_request_one(EXYNOS4_GPX3(7), GPIOF_IN, "hpd-plug"));
s3c_gpio_cfgpin(EXYNOS4_GPX3(7), S3C_GPIO_SFN(0x3));
s3c_gpio_setpull(EXYNOS4_GPX3(7), S3C_GPIO_PULL_NONE);
-
- /* setup dependencies between TV devices */
- s5p_device_hdmi.dev.parent = &exynos4_device_pd[PD_TV].dev;
- s5p_device_mixer.dev.parent = &exynos4_device_pd[PD_TV].dev;
}
static void __init smdkv310_map_io(void)
@@ -379,7 +368,6 @@ static void __init smdkv310_machine_init(void)
clk_xusbxti.rate = 24000000;
platform_add_devices(smdkv310_devices, ARRAY_SIZE(smdkv310_devices));
- s5p_device_mfc.dev.parent = &exynos4_device_pd[PD_MFC].dev;
}
MACHINE_START(SMDKV310, "SMDKV310")
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 37ac93e8d6d9..b2d495b31094 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -13,6 +13,7 @@
#include <linux/i2c.h>
#include <linux/gpio_keys.h>
#include <linux/gpio.h>
+#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/mfd/max8998.h>
#include <linux/regulator/machine.h>
@@ -595,6 +596,7 @@ static struct mxt_platform_data qt602240_platform_data = {
.threshold = 0x28,
.voltage = 2800000, /* 2.8V */
.orient = MXT_DIAGONAL,
+ .irqflags = IRQF_TRIGGER_FALLING,
};
static struct i2c_board_info i2c3_devs[] __initdata = {
@@ -910,7 +912,7 @@ static struct s5p_fimc_isp_info universal_camera_sensors[] = {
.bus_type = FIMC_MIPI_CSI2,
.board_info = &m5mols_board_info,
.i2c_bus_num = 0,
- .clk_frequency = 21600000UL,
+ .clk_frequency = 24000000UL,
.csi_data_align = 32,
},
};
@@ -969,7 +971,6 @@ static struct platform_device *universal_devices[] __initdata = {
&s3c_device_i2c5,
&s5p_device_i2c_hdmiphy,
&hdmi_fixed_voltage,
- &exynos4_device_pd[PD_TV],
&s5p_device_hdmi,
&s5p_device_sdo,
&s5p_device_mixer,
@@ -982,9 +983,6 @@ static struct platform_device *universal_devices[] __initdata = {
&s5p_device_mfc,
&s5p_device_mfc_l,
&s5p_device_mfc_r,
- &exynos4_device_pd[PD_MFC],
- &exynos4_device_pd[PD_LCD0],
- &exynos4_device_pd[PD_CAM],
&cam_i_core_fixed_reg_dev,
&cam_s_if_fixed_reg_dev,
&s5p_device_fimc_md,
@@ -1003,10 +1001,6 @@ void s5p_tv_setup(void)
gpio_request_one(EXYNOS4_GPX3(7), GPIOF_IN, "hpd-plug");
s3c_gpio_cfgpin(EXYNOS4_GPX3(7), S3C_GPIO_SFN(0x3));
s3c_gpio_setpull(EXYNOS4_GPX3(7), S3C_GPIO_PULL_NONE);
-
- /* setup dependencies between TV devices */
- s5p_device_hdmi.dev.parent = &exynos4_device_pd[PD_TV].dev;
- s5p_device_mixer.dev.parent = &exynos4_device_pd[PD_TV].dev;
}
static void __init universal_reserve(void)
@@ -1040,15 +1034,6 @@ static void __init universal_machine_init(void)
/* Last */
platform_add_devices(universal_devices, ARRAY_SIZE(universal_devices));
-
- s5p_device_mfc.dev.parent = &exynos4_device_pd[PD_MFC].dev;
- s5p_device_fimd0.dev.parent = &exynos4_device_pd[PD_LCD0].dev;
-
- s5p_device_fimc0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
- s5p_device_fimc1.dev.parent = &exynos4_device_pd[PD_CAM].dev;
- s5p_device_fimc2.dev.parent = &exynos4_device_pd[PD_CAM].dev;
- s5p_device_fimc3.dev.parent = &exynos4_device_pd[PD_CAM].dev;
- s5p_device_mipi_csis0.dev.parent = &exynos4_device_pd[PD_CAM].dev;
}
MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index a4f61a43c7ba..e19013051772 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -206,7 +206,7 @@ static void exynos4_pm_prepare(void)
}
-static int exynos4_pm_add(struct device *dev)
+static int exynos4_pm_add(struct device *dev, struct subsys_interface *sif)
{
pm_cpu_prep = exynos4_pm_prepare;
pm_cpu_sleep = exynos4_cpu_suspend;
@@ -384,7 +384,9 @@ static void exynos4_pm_resume(void)
exynos4_restore_pll();
+#ifdef CONFIG_SMP
scu_enable(S5P_VA_SCU);
+#endif
#ifdef CONFIG_CACHE_L2X0
s3c_pm_do_restore_core(exynos4_l2cc_save, ARRAY_SIZE(exynos4_l2cc_save));
diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
new file mode 100644
index 000000000000..0b04af2b13cc
--- /dev/null
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -0,0 +1,195 @@
+/*
+ * Exynos Generic power domain support.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Implementation of Exynos specific power domain control which is used in
+ * conjunction with runtime-pm. Support for both device-tree and non-device-tree
+ * based power domain support is included.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/pm_domain.h>
+#include <linux/delay.h>
+#include <linux/of_address.h>
+
+#include <mach/regs-pmu.h>
+#include <plat/devs.h>
+
+/*
+ * Exynos specific wrapper around the generic power domain
+ */
+struct exynos_pm_domain {
+ void __iomem *base;
+ char const *name;
+ bool is_off;
+ struct generic_pm_domain pd;
+};
+
+static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on)
+{
+ struct exynos_pm_domain *pd;
+ void __iomem *base;
+ u32 timeout, pwr;
+ char *op;
+
+ pd = container_of(domain, struct exynos_pm_domain, pd);
+ base = pd->base;
+
+ pwr = power_on ? S5P_INT_LOCAL_PWR_EN : 0;
+ __raw_writel(pwr, base);
+
+ /* Wait max 1ms */
+ timeout = 10;
+
+ while ((__raw_readl(base + 0x4) & S5P_INT_LOCAL_PWR_EN) != pwr) {
+ if (!timeout) {
+ op = (power_on) ? "enable" : "disable";
+ pr_err("Power domain %s %s failed\n", domain->name, op);
+ return -ETIMEDOUT;
+ }
+ timeout--;
+ cpu_relax();
+ usleep_range(80, 100);
+ }
+ return 0;
+}
+
+static int exynos_pd_power_on(struct generic_pm_domain *domain)
+{
+ return exynos_pd_power(domain, true);
+}
+
+static int exynos_pd_power_off(struct generic_pm_domain *domain)
+{
+ return exynos_pd_power(domain, false);
+}
+
+#define EXYNOS_GPD(PD, BASE, NAME) \
+static struct exynos_pm_domain PD = { \
+ .base = (void __iomem *)BASE, \
+ .name = NAME, \
+ .pd = { \
+ .power_off = exynos_pd_power_off, \
+ .power_on = exynos_pd_power_on, \
+ }, \
+}
+
+#ifdef CONFIG_OF
+static __init int exynos_pm_dt_parse_domains(void)
+{
+ struct device_node *np;
+
+ for_each_compatible_node(np, NULL, "samsung,exynos4210-pd") {
+ struct exynos_pm_domain *pd;
+
+ pd = kzalloc(sizeof(*pd), GFP_KERNEL);
+ if (!pd) {
+ pr_err("%s: failed to allocate memory for domain\n",
+ __func__);
+ return -ENOMEM;
+ }
+
+ if (of_get_property(np, "samsung,exynos4210-pd-off", NULL))
+ pd->is_off = true;
+ pd->name = np->name;
+ pd->base = of_iomap(np, 0);
+ pd->pd.power_off = exynos_pd_power_off;
+ pd->pd.power_on = exynos_pd_power_on;
+ pd->pd.of_node = np;
+ pm_genpd_init(&pd->pd, NULL, false);
+ }
+ return 0;
+}
+#else
+static __init int exynos_pm_dt_parse_domains(void)
+{
+ return 0;
+}
+#endif /* CONFIG_OF */
+
+static __init void exynos_pm_add_dev_to_genpd(struct platform_device *pdev,
+ struct exynos_pm_domain *pd)
+{
+ if (pdev->dev.bus) {
+ if (pm_genpd_add_device(&pd->pd, &pdev->dev))
+ pr_info("%s: error in adding %s device to %s power"
+ "domain\n", __func__, dev_name(&pdev->dev),
+ pd->name);
+ }
+}
+
+EXYNOS_GPD(exynos4_pd_mfc, S5P_PMU_MFC_CONF, "pd-mfc");
+EXYNOS_GPD(exynos4_pd_g3d, S5P_PMU_G3D_CONF, "pd-g3d");
+EXYNOS_GPD(exynos4_pd_lcd0, S5P_PMU_LCD0_CONF, "pd-lcd0");
+EXYNOS_GPD(exynos4_pd_lcd1, S5P_PMU_LCD1_CONF, "pd-lcd1");
+EXYNOS_GPD(exynos4_pd_tv, S5P_PMU_TV_CONF, "pd-tv");
+EXYNOS_GPD(exynos4_pd_cam, S5P_PMU_CAM_CONF, "pd-cam");
+EXYNOS_GPD(exynos4_pd_gps, S5P_PMU_GPS_CONF, "pd-gps");
+
+static struct exynos_pm_domain *exynos4_pm_domains[] = {
+ &exynos4_pd_mfc,
+ &exynos4_pd_g3d,
+ &exynos4_pd_lcd0,
+ &exynos4_pd_lcd1,
+ &exynos4_pd_tv,
+ &exynos4_pd_cam,
+ &exynos4_pd_gps,
+};
+
+static __init int exynos4_pm_init_power_domain(void)
+{
+ int idx;
+
+ if (of_have_populated_dt())
+ return exynos_pm_dt_parse_domains();
+
+ for (idx = 0; idx < ARRAY_SIZE(exynos4_pm_domains); idx++)
+ pm_genpd_init(&exynos4_pm_domains[idx]->pd, NULL,
+ exynos4_pm_domains[idx]->is_off);
+
+#ifdef CONFIG_S5P_DEV_FIMD0
+ exynos_pm_add_dev_to_genpd(&s5p_device_fimd0, &exynos4_pd_lcd0);
+#endif
+#ifdef CONFIG_S5P_DEV_TV
+ exynos_pm_add_dev_to_genpd(&s5p_device_hdmi, &exynos4_pd_tv);
+ exynos_pm_add_dev_to_genpd(&s5p_device_mixer, &exynos4_pd_tv);
+#endif
+#ifdef CONFIG_S5P_DEV_MFC
+ exynos_pm_add_dev_to_genpd(&s5p_device_mfc, &exynos4_pd_mfc);
+#endif
+#ifdef CONFIG_S5P_DEV_FIMC0
+ exynos_pm_add_dev_to_genpd(&s5p_device_fimc0, &exynos4_pd_cam);
+#endif
+#ifdef CONFIG_S5P_DEV_FIMC1
+ exynos_pm_add_dev_to_genpd(&s5p_device_fimc1, &exynos4_pd_cam);
+#endif
+#ifdef CONFIG_S5P_DEV_FIMC2
+ exynos_pm_add_dev_to_genpd(&s5p_device_fimc2, &exynos4_pd_cam);
+#endif
+#ifdef CONFIG_S5P_DEV_FIMC3
+ exynos_pm_add_dev_to_genpd(&s5p_device_fimc3, &exynos4_pd_cam);
+#endif
+#ifdef CONFIG_S5P_DEV_CSIS0
+ exynos_pm_add_dev_to_genpd(&s5p_device_mipi_csis0, &exynos4_pd_cam);
+#endif
+#ifdef CONFIG_S5P_DEV_CSIS1
+ exynos_pm_add_dev_to_genpd(&s5p_device_mipi_csis1, &exynos4_pd_cam);
+#endif
+ return 0;
+}
+arch_initcall(exynos4_pm_init_power_domain);
+
+static __init int exynos_pm_late_initcall(void)
+{
+ pm_genpd_poweroff_unused();
+ return 0;
+}
+late_initcall(exynos_pm_late_initcall);
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-06 01:08:32 +0300