mfd: tps6586x: move regulator dt parsing to regulator driver
Moving regulator node parsing to regulator driver in place
of parsing it on mfd driver.
The motivation for this change are:
- MFD core driver should not depends on regulator and able
to instantiate device without regulator.
- The API for matching regulators are in regulator core and
it is good that regulator driver only calls this API.
- Regulator specific support should be in regulator driver only
to ease any enhancement/modification for regulators.
- The regulator driver is now registered as mfd sub device and
all regulator registration is done from single probe call.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index 4674643..9d67bd9 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -24,8 +24,6 @@
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
-#include <linux/regulator/of_regulator.h>
-#include <linux/regulator/machine.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tps6586x.h>
@@ -99,6 +97,9 @@
.name = "tps6586x-gpio",
},
{
+ .name = "tps6586x-pmic",
+ },
+ {
.name = "tps6586x-rtc",
},
{
@@ -350,80 +351,19 @@
}
#ifdef CONFIG_OF
-static struct of_regulator_match tps6586x_matches[] = {
- { .name = "sys", .driver_data = (void *)TPS6586X_ID_SYS },
- { .name = "sm0", .driver_data = (void *)TPS6586X_ID_SM_0 },
- { .name = "sm1", .driver_data = (void *)TPS6586X_ID_SM_1 },
- { .name = "sm2", .driver_data = (void *)TPS6586X_ID_SM_2 },
- { .name = "ldo0", .driver_data = (void *)TPS6586X_ID_LDO_0 },
- { .name = "ldo1", .driver_data = (void *)TPS6586X_ID_LDO_1 },
- { .name = "ldo2", .driver_data = (void *)TPS6586X_ID_LDO_2 },
- { .name = "ldo3", .driver_data = (void *)TPS6586X_ID_LDO_3 },
- { .name = "ldo4", .driver_data = (void *)TPS6586X_ID_LDO_4 },
- { .name = "ldo5", .driver_data = (void *)TPS6586X_ID_LDO_5 },
- { .name = "ldo6", .driver_data = (void *)TPS6586X_ID_LDO_6 },
- { .name = "ldo7", .driver_data = (void *)TPS6586X_ID_LDO_7 },
- { .name = "ldo8", .driver_data = (void *)TPS6586X_ID_LDO_8 },
- { .name = "ldo9", .driver_data = (void *)TPS6586X_ID_LDO_9 },
- { .name = "ldo_rtc", .driver_data = (void *)TPS6586X_ID_LDO_RTC },
-};
-
static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *client)
{
- const unsigned int num = ARRAY_SIZE(tps6586x_matches);
struct device_node *np = client->dev.of_node;
struct tps6586x_platform_data *pdata;
- struct tps6586x_subdev_info *devs;
- struct device_node *regs;
- const char *sys_rail_name = NULL;
- unsigned int count;
- unsigned int i, j;
- int err;
-
- regs = of_find_node_by_name(np, "regulators");
- if (!regs)
- return NULL;
-
- err = of_regulator_match(&client->dev, regs, tps6586x_matches, num);
- if (err < 0) {
- of_node_put(regs);
- return NULL;
- }
-
- of_node_put(regs);
- count = err;
-
- devs = devm_kzalloc(&client->dev, count * sizeof(*devs), GFP_KERNEL);
- if (!devs)
- return NULL;
-
- for (i = 0, j = 0; i < num && j < count; i++) {
- struct regulator_init_data *reg_idata;
-
- if (!tps6586x_matches[i].init_data)
- continue;
-
- reg_idata = tps6586x_matches[i].init_data;
- devs[j].name = "tps6586x-regulator";
- devs[j].platform_data = tps6586x_matches[i].init_data;
- devs[j].id = (int)tps6586x_matches[i].driver_data;
- if (devs[j].id == TPS6586X_ID_SYS)
- sys_rail_name = reg_idata->constraints.name;
-
- if ((devs[j].id == TPS6586X_ID_LDO_5) ||
- (devs[j].id == TPS6586X_ID_LDO_RTC))
- reg_idata->supply_regulator = sys_rail_name;
-
- devs[j].of_node = tps6586x_matches[i].of_node;
- j++;
- }
pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata)
+ if (!pdata) {
+ dev_err(&client->dev, "Memory allocation failed\n");
return NULL;
+ }
- pdata->num_subdevs = count;
- pdata->subdevs = devs;
+ pdata->num_subdevs = 0;
+ pdata->subdevs = NULL;
pdata->gpio_base = -1;
pdata->irq_base = -1;
pdata->pm_off = of_property_read_bool(np, "ti,system-power-controller");