diff options
Diffstat (limited to 'drivers/hwmon/mcp3021.c')
| -rw-r--r-- | drivers/hwmon/mcp3021.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/hwmon/mcp3021.c b/drivers/hwmon/mcp3021.c index d700b927117..eedb32292d6 100644 --- a/drivers/hwmon/mcp3021.c +++ b/drivers/hwmon/mcp3021.c @@ -1,5 +1,5 @@ /* - * mcp3021.c - driver for the Microchip MCP3021 chip + * mcp3021.c - driver for Microchip MCP3021 and MCP3221 * * Copyright (C) 2008-2009, 2012 Freescale Semiconductor, Inc. * Author: Mingkai Hu <Mingkai.hu@freescale.com> @@ -35,9 +35,16 @@ #define MCP3021_OUTPUT_RES 10 /* 10-bit resolution */ #define MCP3021_OUTPUT_SCALE 4 +#define MCP3221_SAR_SHIFT 0 +#define MCP3221_SAR_MASK 0xfff +#define MCP3221_OUTPUT_RES 12 /* 12-bit resolution */ +#define MCP3221_OUTPUT_SCALE 1 + enum chips { - mcp3021 + mcp3021, + mcp3221 }; + /* * Client data (each client gets its own) */ @@ -127,6 +134,13 @@ static int mcp3021_probe(struct i2c_client *client, data->output_res = MCP3021_OUTPUT_RES; data->output_scale = MCP3021_OUTPUT_SCALE; break; + + case mcp3221: + data->sar_shift = MCP3221_SAR_SHIFT; + data->sar_mask = MCP3221_SAR_MASK; + data->output_res = MCP3221_OUTPUT_RES; + data->output_scale = MCP3221_OUTPUT_SCALE; + break; } if (client->dev.platform_data) { @@ -165,6 +179,7 @@ static int mcp3021_remove(struct i2c_client *client) static const struct i2c_device_id mcp3021_id[] = { { "mcp3021", mcp3021 }, + { "mcp3221", mcp3221 }, { } }; MODULE_DEVICE_TABLE(i2c, mcp3021_id); @@ -181,5 +196,5 @@ static struct i2c_driver mcp3021_driver = { module_i2c_driver(mcp3021_driver); MODULE_AUTHOR("Mingkai Hu <Mingkai.hu@freescale.com>"); -MODULE_DESCRIPTION("Microchip MCP3021 driver"); +MODULE_DESCRIPTION("Microchip MCP3021/MCP3221 driver"); MODULE_LICENSE("GPL"); |