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mfd: tps65218: add version check to the PMIC probe 

Version information will be needed to handle some error cases under the
regulator driver, so store the information once during MFD probe.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Tero Kristo 2016-08-10 17:53:54 +05:30 committed by Mark Brown
parent 29b4817d40
commit f11fa1796a
2 changed files with 10 additions and 0 deletions
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9
drivers/mfd/tps65218.c
View File

@ -219,6 +219,7 @@ static int tps65218_probe(struct i2c_client *client,
struct tps65218 *tps;
const struct of_device_id *match;
int ret;
unsigned int chipid;
match = of_match_device(of_tps65218_match_table, &client->dev);
if (!match) {
@ -250,6 +251,14 @@ static int tps65218_probe(struct i2c_client *client,
if (ret < 0)
return ret;
ret = tps65218_reg_read(tps, TPS65218_REG_CHIPID, &chipid);
if (ret) {
dev_err(tps->dev, "Failed to read chipid: %d\n", ret);
return ret;
}
tps->rev = chipid & TPS65218_CHIPID_REV_MASK;
ret = of_platform_populate(client->dev.of_node, NULL, NULL,
&client->dev);
if (ret < 0)

1
include/linux/mfd/tps65218.h
View File

@ -267,6 +267,7 @@ struct tps_info {
struct tps65218 {
struct device *dev;
unsigned int id;
u8 rev;
struct mutex tps_lock; /* lock guarding the data structure */
/* IRQ Data */