On Thursday, January 12, 2012, Thomas Abraham wrote:
> Add support for generic power domain for Exynos4 platforms and remove the
> Samsung specific power domain control for Exynos4.
>
> The generic power domain infrastructure is used to control the power domains
> available on Exynos4. For non-dt platforms, the power domains are statically
> instantiated. For dt platforms, the power domain nodes found in the device
> tree are instantiated.
>
> Cc: Rafael J. Wysocki <rjw@xxxxxxx>
> Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
> Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> Cc: Rob Herring <rob.herring@xxxxxxxxxxx>
> Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
> Signed-off-by: Thomas Abraham <thomas.abraham@xxxxxxxxxx>
As I said before, I'm going to take patch [1/2] from this series for v3.4,
but I need an ACK from the Exynos maintainers for [2/2].
Thanks,
Rafael
> ---
> .../bindings/arm/exynos/power_domain.txt | 21 ++
> arch/arm/mach-exynos/Kconfig | 10 +-
> arch/arm/mach-exynos/Makefile | 2 +-
> arch/arm/mach-exynos/dev-pd.c | 139 --------------
> arch/arm/mach-exynos/mach-nuri.c | 11 -
> arch/arm/mach-exynos/mach-origen.c | 14 --
> arch/arm/mach-exynos/mach-smdkv310.c | 12 --
> arch/arm/mach-exynos/mach-universal_c210.c | 17 --
> arch/arm/mach-exynos/pm_domains.c | 195 ++++++++++++++++++++
> 9 files changed, 218 insertions(+), 203 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/arm/exynos/power_domain.txt
> delete mode 100644 arch/arm/mach-exynos/dev-pd.c
> create mode 100644 arch/arm/mach-exynos/pm_domains.c
>
> diff --git a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
> new file mode 100644
> index 0000000..6528e21
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
> @@ -0,0 +1,21 @@
> +* Samsung Exynos Power Domains
> +
> +Exynos processors include support for multiple power domains which are used
> +to gate power to one or more peripherals on the processor.
> +
> +Required Properties:
> +- compatiable: should be one of the following.
> + * samsung,exynos4210-pd - for exynos4210 type power domain.
> +- reg: physical base address of the controller and length of memory mapped
> + region.
> +
> +Optional Properties:
> +- samsung,exynos4210-pd-off: Specifies that the power domain is in turned-off
> + state during boot and remains to be turned-off until explicitly turned-on.
> +
> +Example:
> +
> + lcd0: power-domain-lcd0 {
> + compatible = "samsung,exynos4210-pd";
> + reg = <0x10023C00 0x10>;
> + };
> diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
> index e931924..5dec134 100644
> --- a/arch/arm/mach-exynos/Kconfig
> +++ b/arch/arm/mach-exynos/Kconfig
> @@ -32,6 +32,7 @@ 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
>
> @@ -72,11 +73,6 @@ 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
> @@ -194,7 +190,6 @@ 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 db527ab..b7e4eca 100644
> --- a/arch/arm/mach-exynos/Makefile
> +++ b/arch/arm/mach-exynos/Makefile
> @@ -17,6 +17,7 @@ obj-$(CONFIG_ARCH_EXYNOS4) += irq-eint.o pmu.o
> obj-$(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-$(CONFIG_SMP) += platsmp.o headsmp.o
> @@ -43,7 +44,6 @@ obj-$(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/dev-pd.c b/arch/arm/mach-exynos/dev-pd.c
> deleted file mode 100644
> index 3273f25..0000000
> --- 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-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
> index 3df8bf4..179a992 100644
> --- a/arch/arm/mach-exynos/mach-nuri.c
> +++ b/arch/arm/mach-exynos/mach-nuri.c
> @@ -1266,9 +1266,6 @@ 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 */
> @@ -1319,14 +1316,6 @@ 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 23fc5cb..da871b9 100644
> --- a/arch/arm/mach-exynos/mach-origen.c
> +++ b/arch/arm/mach-exynos/mach-origen.c
> @@ -639,13 +639,6 @@ 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,
> &origen_device_bluetooth,
> @@ -724,13 +717,6 @@ 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);
>
> origen_bt_setup();
> diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
> index bf2094e..88d1a30 100644
> --- a/arch/arm/mach-exynos/mach-smdkv310.c
> +++ b/arch/arm/mach-exynos/mach-smdkv310.c
> @@ -275,13 +275,6 @@ 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,
> @@ -334,10 +327,6 @@ 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)
> @@ -377,7 +366,6 @@ 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 c38e18d..28d8f02 100644
> --- a/arch/arm/mach-exynos/mach-universal_c210.c
> +++ b/arch/arm/mach-exynos/mach-universal_c210.c
> @@ -968,7 +968,6 @@ 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,
> @@ -981,9 +980,6 @@ 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,
> @@ -1002,10 +998,6 @@ 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)
> @@ -1039,15 +1031,6 @@ 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_domains.c b/arch/arm/mach-exynos/pm_domains.c
> new file mode 100644
> index 0000000..f81c3c7
> --- /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);
>
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