diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2019-02-14 04:24:50 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2019-02-14 17:58:23 +0100 |
| commit | 237b5f66e1ed8a58662f29bcd04442953cdb8b55 (patch) | |
| tree | 679525cdc0db3850ad72cb3098dba563e9dd73fb | |
| parent | 809445d4b7fa7101d9434182bebbd8c84d7e4b65 (diff) | |
i2c: ocores: Add support for bus clock via platform data
Add the I2C bus clock speed to the platform data structure.
If not set, default to 100KHz as before.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| -rw-r--r-- | drivers/i2c/busses/i2c-ocores.c | 5 | ||||
| -rw-r--r-- | include/linux/platform_data/i2c-ocores.h | 1 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c index 0d90a82a2c03..4eea18689e99 100644 --- a/drivers/i2c/busses/i2c-ocores.c +++ b/drivers/i2c/busses/i2c-ocores.c @@ -628,7 +628,10 @@ static int ocores_i2c_probe(struct platform_device *pdev) i2c->reg_shift = pdata->reg_shift; i2c->reg_io_width = pdata->reg_io_width; i2c->ip_clock_khz = pdata->clock_khz; - i2c->bus_clock_khz = 100; + if (pdata->bus_khz) + i2c->bus_clock_khz = pdata->bus_khz; + else + i2c->bus_clock_khz = 100; } else { ret = ocores_i2c_of_probe(pdev, i2c); if (ret) diff --git a/include/linux/platform_data/i2c-ocores.h b/include/linux/platform_data/i2c-ocores.h index 8c416ff8affd..e6326cbafe59 100644 --- a/include/linux/platform_data/i2c-ocores.h +++ b/include/linux/platform_data/i2c-ocores.h @@ -12,6 +12,7 @@ struct ocores_i2c_platform_data { u32 reg_shift; /* register offset shift value */ u32 reg_io_width; /* register io read/write width */ u32 clock_khz; /* input clock in kHz */ + u32 bus_khz; /* bus clock in kHz */ bool big_endian; /* registers are big endian */ u8 num_devices; /* number of devices in the devices list */ struct i2c_board_info const *devices; /* devices connected to the bus */ |