diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-mcp23s08.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-mcp23s08.c | 40 |
1 files changed, 4 insertions, 36 deletions
diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c index a17fcaddf490..586f2f67c617 100644 --- a/drivers/pinctrl/pinctrl-mcp23s08.c +++ b/drivers/pinctrl/pinctrl-mcp23s08.c @@ -44,17 +44,6 @@ #define MCP_GPIO 0x09 #define MCP_OLAT 0x0a -static const struct reg_default mcp23x08_defaults[] = { - {.reg = MCP_IODIR, .def = 0xff}, - {.reg = MCP_IPOL, .def = 0x00}, - {.reg = MCP_GPINTEN, .def = 0x00}, - {.reg = MCP_DEFVAL, .def = 0x00}, - {.reg = MCP_INTCON, .def = 0x00}, - {.reg = MCP_IOCON, .def = 0x00}, - {.reg = MCP_GPPU, .def = 0x00}, - {.reg = MCP_OLAT, .def = 0x00}, -}; - static const struct regmap_range mcp23x08_volatile_range = { .range_min = MCP_INTF, .range_max = MCP_GPIO, @@ -82,25 +71,13 @@ const struct regmap_config mcp23x08_regmap = { .reg_stride = 1, .volatile_table = &mcp23x08_volatile_table, .precious_table = &mcp23x08_precious_table, - .reg_defaults = mcp23x08_defaults, - .num_reg_defaults = ARRAY_SIZE(mcp23x08_defaults), - .cache_type = REGCACHE_FLAT, + .num_reg_defaults_raw = MCP_OLAT + 1, + .cache_type = REGCACHE_MAPLE, .max_register = MCP_OLAT, .disable_locking = true, /* mcp->lock protects the regmap */ }; EXPORT_SYMBOL_GPL(mcp23x08_regmap); -static const struct reg_default mcp23x17_defaults[] = { - {.reg = MCP_IODIR << 1, .def = 0xffff}, - {.reg = MCP_IPOL << 1, .def = 0x0000}, - {.reg = MCP_GPINTEN << 1, .def = 0x0000}, - {.reg = MCP_DEFVAL << 1, .def = 0x0000}, - {.reg = MCP_INTCON << 1, .def = 0x0000}, - {.reg = MCP_IOCON << 1, .def = 0x0000}, - {.reg = MCP_GPPU << 1, .def = 0x0000}, - {.reg = MCP_OLAT << 1, .def = 0x0000}, -}; - static const struct regmap_range mcp23x17_volatile_range = { .range_min = MCP_INTF << 1, .range_max = MCP_GPIO << 1, @@ -129,9 +106,8 @@ const struct regmap_config mcp23x17_regmap = { .max_register = MCP_OLAT << 1, .volatile_table = &mcp23x17_volatile_table, .precious_table = &mcp23x17_precious_table, - .reg_defaults = mcp23x17_defaults, - .num_reg_defaults = ARRAY_SIZE(mcp23x17_defaults), - .cache_type = REGCACHE_FLAT, + .num_reg_defaults_raw = MCP_OLAT + 1, + .cache_type = REGCACHE_MAPLE, .val_format_endian = REGMAP_ENDIAN_LITTLE, .disable_locking = true, /* mcp->lock protects the regmap */ }; @@ -642,14 +618,6 @@ int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, mcp->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); - /* - * Reset the chip - we don't really know what state it's in, so reset - * all pins to input first to prevent surprises. - */ - ret = mcp_write(mcp, MCP_IODIR, mcp->chip.ngpio == 16 ? 0xFFFF : 0xFF); - if (ret < 0) - return ret; - /* verify MCP_IOCON.SEQOP = 0, so sequential reads work, * and MCP_IOCON.HAEN = 1, so we work with all chips. */ |