shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 10:31:46 +09:00
Code Issues Packages Projects Releases Wiki Activity

mfd: rk809/rk817: Modify the switching method of the PMIC sleep function

Browse Source 
The switching method of the pmic_sleep function has been changed
from relying on the pinctrl framework to directly manipulating
registers.

Change-Id: I730846063387c3d378304d3ee1553fb990cb1604
Signed-off-by: Shengfei Xu <xsf@rock-chips.com>
This commit is contained in:
Shengfei Xu
2025-07-31 19:28:23 +08:00
committed by Tao Huang
parent 5d36ec40bf
commit dd61e4243f
1 changed files with 54 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
drivers/mfd/rk808.c
View File

@@ -957,6 +957,12 @@ static int rk817_shutdown_prepare(struct sys_off_data *data)
if (ret)
pr_info("%s:failed to activate pwroff state\n",
__func__);
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK,
SLPPIN_DN_FUN);
if (ret)
pr_err("shutdown: config SLPPIN_DN_FUN error!\n");
}
/* pmic sleep shutdown function */
@@ -1173,29 +1179,8 @@ static int rk801_pinctrl_init(struct device *dev, struct rk808 *rk808)
static int rk817_pinctrl_init(struct device *dev, struct rk808 *rk808)
{
int ret;
struct platform_device *pinctrl_dev;
struct pinctrl_state *default_st;
pinctrl_dev = platform_device_alloc("rk805-pinctrl", -1);
if (!pinctrl_dev) {
dev_err(dev, "Alloc pinctrl dev failed!\n");
return -ENOMEM;
}
pinctrl_dev->dev.parent = dev;
ret = platform_device_add(pinctrl_dev);
if (ret) {
platform_device_put(pinctrl_dev);
dev_err(dev, "Add rk805-pinctrl dev failed!\n");
return ret;
}
if (dev->pins && !IS_ERR(dev->pins->p)) {
dev_info(dev, "had get a pinctrl!\n");
return 0;
}
int ret, value;
rk808->pins = devm_kzalloc(dev, sizeof(struct rk808_pin_info),
GFP_KERNEL);
@@ -1244,12 +1229,40 @@ static int rk817_pinctrl_init(struct device *dev, struct rk808 *rk808)
dev_dbg(dev, "no reset-setting pinctrl state\n");
return 0;
}
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK,
SLPPIN_NULL_FUN);
if (ret) {
dev_err(dev, "init: config SLPPIN_NULL_FUN error!\n");
return ret;
}
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPOL_MSK,
RK817_SLPPOL_L);
if (ret) {
dev_err(dev, "init: config RK817_SLPPOL_L error!\n");
return ret;
}
/* pmic need the SCL clock to synchronize register */
regmap_read(rk808->regmap, RK817_SYS_STS, &value);
mdelay(2);
ret = pinctrl_select_state(rk808->pins->p, rk808->pins->reset);
if (ret)
dev_dbg(dev, "failed to activate reset-setting pinctrl state\n");
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK,
SLPPIN_RST_FUN);
if (ret) {
dev_err(dev, "init: config SLPPIN_RST_FUN error!\n");
return ret;
}
return 0;
}
@@ -1772,6 +1785,15 @@ static int __maybe_unused rk8xx_suspend(struct device *dev)
dev_err(dev, "failed to act slp pinctrl state\n");
return ret;
}
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK,
SLPPIN_SLP_FUN);
if (ret) {
dev_err(dev, "suspend: config SLPPIN_SLP_FUN error!\n");
return ret;
}
}
break;
default:
@@ -1827,6 +1849,15 @@ static int __maybe_unused rk8xx_resume(struct device *dev)
ret = pinctrl_select_state(rk808->pins->p, rk808->pins->reset);
if (ret)
dev_dbg(dev, "failed to act reset pinctrl state\n");
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK,
SLPPIN_RST_FUN);
if (ret) {
dev_err(dev, "resume: config SLPPIN_RST_FUN error!\n");
return ret;
}
}
break;
default: