On 2019/9/19 下午4:09, Elaine Zhang wrote:
From: Joseph Chen chenjh@rock-chips.com
add rk8xx_shutdown for pmic shutdown. It is used in applications such as UBOOT shutdown charging.
Signed-off-by: Joseph Chen chenjh@rock-chips.com Signed-off-by: Elaine Zhang zhangqing@rock-chips.com
Reviewed-by: Kever Yangkever.yang@rock-chips.com
Thanks, - Kever
drivers/power/pmic/rk8xx.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+)
diff --git a/drivers/power/pmic/rk8xx.c b/drivers/power/pmic/rk8xx.c index 00c8a2e091d8..df2056913ced 100644 --- a/drivers/power/pmic/rk8xx.c +++ b/drivers/power/pmic/rk8xx.c @@ -49,6 +49,44 @@ static int rk8xx_read(struct udevice *dev, uint reg, uint8_t *buff, int len) return 0; }
+static int rk8xx_shutdown(struct udevice *dev) +{
- struct rk8xx_priv *priv = dev_get_priv(dev);
- u8 val, dev_off;
- int ret = 0;
- switch (priv->variant) {
- case RK808_ID:
dev_off = BIT(3);break;- case RK805_ID:
- case RK816_ID:
- case RK818_ID:
dev_off = BIT(0);break;- default:
printf("Unknown PMIC: RK%x\n", priv->variant);return -EINVAL;- }
- ret = dm_i2c_read(dev, REG_DEVCTRL, &val, 1);
- if (ret) {
printf("read error from device: %p register: %#x!",dev, REG_DEVCTRL);return ret;- }
- val |= dev_off;
- ret = dm_i2c_write(dev, REG_DEVCTRL, &val, 1);
- if (ret) {
printf("write error to device: %p register: %#x!",dev, REG_DEVCTRL);return ret;- }
- return 0;
+}
- #if CONFIG_IS_ENABLED(PMIC_CHILDREN) static int rk8xx_bind(struct udevice *dev) {
@@ -91,6 +129,7 @@ static struct dm_pmic_ops rk8xx_ops = { .reg_count = rk8xx_reg_count, .read = rk8xx_read, .write = rk8xx_write,
.shutdown = rk8xx_shutdown, };
static const struct udevice_id rk8xx_ids[] = {