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mfd: rk808: add on/off source dump

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Show the reason of this power on and last shutdown.

Change-Id: Id540433065859a0c3f4817ed66e295b7c6dfccb5
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
This commit is contained in:
Joseph Chen
2019-11-01 17:54:38 +08:00
committed by Tao Huang
parent 3bb76af1a8
commit 501f6ea1f5
1 changed files with 28 additions and 2 deletions
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30
drivers/mfd/rk808.c
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@@ -812,10 +812,13 @@ static int rk808_probe(struct i2c_client *client,
struct rk808 *rk808;
const struct rk808_reg_data *pre_init_reg;
const struct mfd_cell *cells;
unsigned char pmic_id_msb, pmic_id_lsb;
u8 on_source = 0, off_source = 0;
unsigned int on, off;
int msb, lsb;
int nr_pre_init_regs;
int nr_cells;
int msb, lsb;
unsigned char pmic_id_msb, pmic_id_lsb;
int ret;
int i;
void (*of_property_prepare_fn)(struct rk808 *rk808,
@@ -861,6 +864,8 @@ static int rk808_probe(struct i2c_client *client,
nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg);
cells = rk805s;
nr_cells = ARRAY_SIZE(rk805s);
on_source = RK805_ON_SOURCE_REG;
off_source = RK805_OFF_SOURCE_REG;
break;
case RK808_ID:
rk808->regmap_cfg = &rk808_regmap_config;
@@ -877,6 +882,8 @@ static int rk808_probe(struct i2c_client *client,
nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg);
cells = rk818s;
nr_cells = ARRAY_SIZE(rk818s);
on_source = RK818_ON_SOURCE_REG;
off_source = RK818_OFF_SOURCE_REG;
break;
case RK809_ID:
case RK817_ID:
@@ -886,6 +893,8 @@ static int rk808_probe(struct i2c_client *client,
nr_pre_init_regs = ARRAY_SIZE(rk817_pre_init_reg);
cells = rk817s;
nr_cells = ARRAY_SIZE(rk817s);
on_source = RK817_ON_SOURCE_REG;
off_source = RK817_OFF_SOURCE_REG;
of_property_prepare_fn = rk817_of_property_prepare;
pinctrl_init = rk817_pinctrl_init;
break;
@@ -904,6 +913,23 @@ static int rk808_probe(struct i2c_client *client,
return PTR_ERR(rk808->regmap);
}
if (on_source && off_source) {
ret = regmap_read(rk808->regmap, on_source, &on);
if (ret) {
dev_err(&client->dev, "read 0x%x failed\n", on_source);
return ret;
}
ret = regmap_read(rk808->regmap, off_source, &off);
if (ret) {
dev_err(&client->dev, "read 0x%x failed\n", off_source);
return ret;
}
dev_info(&client->dev, "source: on=0x%02x, off=0x%02x\n",
on, off);
}
if (!client->irq) {
dev_err(&client->dev, "No interrupt support, no core IRQ\n");
return -EINVAL;