d6d8b48199
This patch adds support Power Domain for S5PV310 and S5PC210. Signed-off-by: Changhwan Youn <chaos.youn at samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
139 lines
2.9 KiB
C
139 lines
2.9 KiB
C
/* linux/arch/arm/mach-s5pv310/dev-pd.c
|
|
*
|
|
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com
|
|
*
|
|
* S5PV310 - 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 s5pv310_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 s5pv310_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 s5pv310_device_pd[] = {
|
|
{
|
|
.name = "samsung-pd",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &(struct samsung_pd_info) {
|
|
.enable = s5pv310_pd_enable,
|
|
.disable = s5pv310_pd_disable,
|
|
.base = S5P_PMU_MFC_CONF,
|
|
},
|
|
},
|
|
}, {
|
|
.name = "samsung-pd",
|
|
.id = 1,
|
|
.dev = {
|
|
.platform_data = &(struct samsung_pd_info) {
|
|
.enable = s5pv310_pd_enable,
|
|
.disable = s5pv310_pd_disable,
|
|
.base = S5P_PMU_G3D_CONF,
|
|
},
|
|
},
|
|
}, {
|
|
.name = "samsung-pd",
|
|
.id = 2,
|
|
.dev = {
|
|
.platform_data = &(struct samsung_pd_info) {
|
|
.enable = s5pv310_pd_enable,
|
|
.disable = s5pv310_pd_disable,
|
|
.base = S5P_PMU_LCD0_CONF,
|
|
},
|
|
},
|
|
}, {
|
|
.name = "samsung-pd",
|
|
.id = 3,
|
|
.dev = {
|
|
.platform_data = &(struct samsung_pd_info) {
|
|
.enable = s5pv310_pd_enable,
|
|
.disable = s5pv310_pd_disable,
|
|
.base = S5P_PMU_LCD1_CONF,
|
|
},
|
|
},
|
|
}, {
|
|
.name = "samsung-pd",
|
|
.id = 4,
|
|
.dev = {
|
|
.platform_data = &(struct samsung_pd_info) {
|
|
.enable = s5pv310_pd_enable,
|
|
.disable = s5pv310_pd_disable,
|
|
.base = S5P_PMU_TV_CONF,
|
|
},
|
|
},
|
|
}, {
|
|
.name = "samsung-pd",
|
|
.id = 5,
|
|
.dev = {
|
|
.platform_data = &(struct samsung_pd_info) {
|
|
.enable = s5pv310_pd_enable,
|
|
.disable = s5pv310_pd_disable,
|
|
.base = S5P_PMU_CAM_CONF,
|
|
},
|
|
},
|
|
}, {
|
|
.name = "samsung-pd",
|
|
.id = 6,
|
|
.dev = {
|
|
.platform_data = &(struct samsung_pd_info) {
|
|
.enable = s5pv310_pd_enable,
|
|
.disable = s5pv310_pd_disable,
|
|
.base = S5P_PMU_GPS_CONF,
|
|
},
|
|
},
|
|
},
|
|
};
|