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| author | Pali Rohár <pali@kernel.org> | 2020-10-26 22:36:15 +0100 |
|---|---|---|
| committer | Lokesh Vutla <lokeshvutla@ti.com> | 2020-11-15 15:25:55 +0530 |
| commit | 4fcc084eeb8cd7db77263672c6a43da629a4ed48 (patch) | |
| tree | 8d6b9028f4ddf7a9ae4cc5daea6c03d8ac38bb47 | |
| parent | a1337e3581b74b62397767b5a8d8ff148ccb97c1 (diff) | |
| download | u-boot-4fcc084eeb8cd7db77263672c6a43da629a4ed48.tar.gz u-boot-4fcc084eeb8cd7db77263672c6a43da629a4ed48.tar.xz u-boot-4fcc084eeb8cd7db77263672c6a43da629a4ed48.zip | |
power: twl4030: Add twl4030_i2c_read() function
Function twl4030_i2c_read() is like twl4030_i2c_read_u8() but instead of
single value it rather returns array of values.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
| -rw-r--r-- | drivers/power/twl4030.c | 7 | ||||
| -rw-r--r-- | include/twl4030.h | 12 |
2 files changed, 12 insertions, 7 deletions
diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c index b0d5cba2c4..f48af84e17 100644 --- a/drivers/power/twl4030.c +++ b/drivers/power/twl4030.c @@ -201,7 +201,7 @@ int twl4030_i2c_write_u8(u8 chip_no, u8 reg, u8 val) return 0; } -int twl4030_i2c_read_u8(u8 chip_no, u8 reg, u8 *valp) +int twl4030_i2c_read(u8 chip_no, u8 reg, u8 *valp, int len) { struct udevice *dev; int ret; @@ -211,12 +211,11 @@ int twl4030_i2c_read_u8(u8 chip_no, u8 reg, u8 *valp) pr_err("unable to get I2C bus. ret %d\n", ret); return ret; } - ret = dm_i2c_reg_read(dev, reg); - if (ret < 0) { + ret = dm_i2c_read(dev, reg, valp, len); + if (ret) { pr_err("reading from twl4030 failed. ret %d\n", ret); return ret; } - *valp = (u8)ret; return 0; } #endif diff --git a/include/twl4030.h b/include/twl4030.h index c27ad615ee..ef05193996 100644 --- a/include/twl4030.h +++ b/include/twl4030.h @@ -654,14 +654,20 @@ static inline int twl4030_i2c_write_u8(u8 chip_no, u8 reg, u8 val) return i2c_write(chip_no, reg, 1, &val, 1); } -static inline int twl4030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val) +static inline int twl4030_i2c_read(u8 chip_no, u8 reg, u8 *val, int len) { - return i2c_read(chip_no, reg, 1, val, 1); + return i2c_read(chip_no, reg, 1, val, len); } #else int twl4030_i2c_write_u8(u8 chip_no, u8 reg, u8 val); -int twl4030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val); +int twl4030_i2c_read(u8 chip_no, u8 reg, u8 *val, int len); #endif + +static inline int twl4030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val) +{ + return twl4030_i2c_read(chip_no, reg, val, 1); +} + /* * Power */ |