The chipid macro/variable and regmap_read function call is not needed
because the TPS65219_REG_TI_DEV_ID register value is not a consistent value
across TPS65219 PMIC config versions. Reading from the DEV_ID register
without a consistent value to compare it to isn't useful. There isn't a
way to verify the match data ID is the same ID read from the DEV_ID device
register. 0xF0 isn't a DEV_ID value consistent across TPS65219 NVM
configurations.
For TPS65215, there is a consistent value in bits 5-0 of the DEV_ID
register. However, there are other error checks in place within probe()
that apply to both PMICs rather than keeping this isolated check for one
PMIC.
Signed-off-by: Shree Ramamoorthy <s-ramamoorthy@xxxxxx>
---
drivers/mfd/tps65219.c | 7 -------
include/linux/mfd/tps65219.h | 3 ---
2 files changed, 10 deletions(-)
diff --git a/drivers/mfd/tps65219.c b/drivers/mfd/tps65219.c
index 081c5a30b04a..4aca922658e3 100644
--- a/drivers/mfd/tps65219.c
+++ b/drivers/mfd/tps65219.c
@@ -221,7 +221,6 @@ static const struct regmap_irq_chip tps65219_irq_chip = {
static int tps65219_probe(struct i2c_client *client)
{
struct tps65219 *tps;
- unsigned int chipid;
bool pwr_button;
int ret;
@@ -246,12 +245,6 @@ static int tps65219_probe(struct i2c_client *client)
if (ret)
return ret;
- ret = regmap_read(tps->regmap, TPS65219_REG_TI_DEV_ID, &chipid);
- if (ret) {
- dev_err(tps->dev, "Failed to read device ID: %d\n", ret);
- return ret;
- }
-
ret = devm_mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO,
tps65219_cells, ARRAY_SIZE(tps65219_cells),
NULL, 0, regmap_irq_get_domain(tps->irq_data));
diff --git a/include/linux/mfd/tps65219.h b/include/linux/mfd/tps65219.h
index 546bceec7173..6ed2ec4264d9 100644
--- a/include/linux/mfd/tps65219.h
+++ b/include/linux/mfd/tps65219.h
@@ -13,9 +13,6 @@
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
-/* TPS chip id list */
-#define TPS65219 0xF0
-
/* I2C ID for TPS65219 part */
#define TPS65219_I2C_ID 0x24
--
2.34.1
