diff options
| author | Phil Reid <preid@electromag.com.au> | 2017-10-06 08:08:07 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-10-19 11:23:36 +0300 |
| commit | ff0f2ce71c200927dcc1d5626079533fafd85b2b (patch) | |
| tree | 1800769585c0b31c298454080313b228de97bba1 /drivers/pinctrl/pinctrl-mcp23s08.c | |
| parent | 350bdb84fda89270703907fb4c4fb482e1edbc31 (diff) | |
| download | linux-ff0f2ce71c200927dcc1d5626079533fafd85b2b.tar.xz | |
gpio: mcp23s08: add support for mcp23018
This adds the required definitions for the mcp23018 which is the i2c
variant of the mcp23s18.
Signed-off-by: Phil Reid <preid@electromag.com.au>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-mcp23s08.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-mcp23s08.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c index d3dbb644fa83..a7602be296a2 100644 --- a/drivers/pinctrl/pinctrl-mcp23s08.c +++ b/drivers/pinctrl/pinctrl-mcp23s08.c @@ -25,6 +25,7 @@ #define MCP_TYPE_008 2 #define MCP_TYPE_017 3 #define MCP_TYPE_S18 4 +#define MCP_TYPE_018 5 #define MCP_MAX_DEV_PER_CS 8 @@ -834,6 +835,13 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, mcp->chip.ngpio = 16; mcp->chip.label = "mcp23017"; break; + + case MCP_TYPE_018: + mcp->regmap = devm_regmap_init_i2c(data, &mcp23x17_regmap); + mcp->reg_shift = 1; + mcp->chip.ngpio = 16; + mcp->chip.label = "mcp23018"; + break; #endif /* CONFIG_I2C */ default: @@ -880,7 +888,7 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, if (mirror) status |= IOCON_MIRROR | (IOCON_MIRROR << 8); - if (type == MCP_TYPE_S18) + if (type == MCP_TYPE_S18 || type == MCP_TYPE_018) status |= IOCON_INTCC | (IOCON_INTCC << 8); ret = mcp_write(mcp, MCP_IOCON, status); @@ -961,6 +969,10 @@ static const struct of_device_id mcp23s08_i2c_of_match[] = { .compatible = "microchip,mcp23017", .data = (void *) MCP_TYPE_017, }, + { + .compatible = "microchip,mcp23018", + .data = (void *) MCP_TYPE_018, + }, /* NOTE: The use of the mcp prefix is deprecated and will be removed. */ { .compatible = "mcp,mcp23008", @@ -1010,6 +1022,7 @@ static int mcp230xx_probe(struct i2c_client *client, static const struct i2c_device_id mcp230xx_id[] = { { "mcp23008", MCP_TYPE_008 }, { "mcp23017", MCP_TYPE_017 }, + { "mcp23018", MCP_TYPE_018 }, { }, }; MODULE_DEVICE_TABLE(i2c, mcp230xx_id); |