mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
pinctrl: mcp23s08: Simplify probe()/mcp23s08_spi_regmap_init()
Add struct mcp23s08_info and simplify probe()/mcp23s08_spi_regmap_init() by replacing match data 'type' with 'struct mcp23s08_info'. While at it, replace 'dev_err()'->'dev_err_probe()' and drop printing 'type' in error path for i2c_get_match_data(). Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20231001150113.7752-4-biju.das.jz@bp.renesas.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Biju Das
Linus Walleij
parent
b03f7aa802
commit
2e44555b05
3 changed files with 93 additions and 96 deletions
|
|
@ -22,6 +22,14 @@ struct regmap;
|
|||
|
||||
struct pinctrl_dev;
|
||||
|
||||
struct mcp23s08_info {
|
||||
const struct regmap_config *regmap;
|
||||
const char *label;
|
||||
unsigned int type;
|
||||
u16 ngpio;
|
||||
bool reg_shift;
|
||||
};
|
||||
|
||||
struct mcp23s08 {
|
||||
u8 addr;
|
||||
bool irq_active_high;
|
||||
|
|
|
|||
|
|
@ -10,50 +10,30 @@
|
|||
|
||||
static int mcp230xx_probe(struct i2c_client *client)
|
||||
{
|
||||
const struct mcp23s08_info *info;
|
||||
struct device *dev = &client->dev;
|
||||
struct mcp23s08 *mcp;
|
||||
unsigned int type;
|
||||
int ret;
|
||||
|
||||
mcp = devm_kzalloc(dev, sizeof(*mcp), GFP_KERNEL);
|
||||
if (!mcp)
|
||||
return -ENOMEM;
|
||||
|
||||
type = (uintptr_t)i2c_get_match_data(client);
|
||||
switch (type) {
|
||||
case MCP_TYPE_008:
|
||||
mcp->regmap = devm_regmap_init_i2c(client, &mcp23x08_regmap);
|
||||
mcp->reg_shift = 0;
|
||||
mcp->chip.ngpio = 8;
|
||||
mcp->chip.label = "mcp23008";
|
||||
break;
|
||||
|
||||
case MCP_TYPE_017:
|
||||
mcp->regmap = devm_regmap_init_i2c(client, &mcp23x17_regmap);
|
||||
mcp->reg_shift = 1;
|
||||
mcp->chip.ngpio = 16;
|
||||
mcp->chip.label = "mcp23017";
|
||||
break;
|
||||
|
||||
case MCP_TYPE_018:
|
||||
mcp->regmap = devm_regmap_init_i2c(client, &mcp23x17_regmap);
|
||||
mcp->reg_shift = 1;
|
||||
mcp->chip.ngpio = 16;
|
||||
mcp->chip.label = "mcp23018";
|
||||
break;
|
||||
|
||||
default:
|
||||
dev_err(dev, "invalid device type (%d)\n", type);
|
||||
return -EINVAL;
|
||||
}
|
||||
info = i2c_get_match_data(client);
|
||||
if (!info)
|
||||
return dev_err_probe(dev, -EINVAL, "invalid device type\n");
|
||||
|
||||
mcp->reg_shift = info->reg_shift;
|
||||
mcp->chip.ngpio = info->ngpio;
|
||||
mcp->chip.label = info->label;
|
||||
mcp->regmap = devm_regmap_init_i2c(client, info->regmap);
|
||||
if (IS_ERR(mcp->regmap))
|
||||
return PTR_ERR(mcp->regmap);
|
||||
|
||||
mcp->irq = client->irq;
|
||||
mcp->pinctrl_desc.name = "mcp23xxx-pinctrl";
|
||||
|
||||
ret = mcp23s08_probe_one(mcp, dev, client->addr, type, -1);
|
||||
ret = mcp23s08_probe_one(mcp, dev, client->addr, info->type, -1);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
|
|
@ -62,36 +42,45 @@ static int mcp230xx_probe(struct i2c_client *client)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static const struct mcp23s08_info mcp23008_i2c = {
|
||||
.regmap = &mcp23x08_regmap,
|
||||
.label = "mcp23008",
|
||||
.type = MCP_TYPE_008,
|
||||
.ngpio = 8,
|
||||
.reg_shift = 0,
|
||||
};
|
||||
|
||||
static const struct mcp23s08_info mcp23017_i2c = {
|
||||
.regmap = &mcp23x17_regmap,
|
||||
.label = "mcp23017",
|
||||
.type = MCP_TYPE_017,
|
||||
.ngpio = 16,
|
||||
.reg_shift = 1,
|
||||
};
|
||||
|
||||
static const struct mcp23s08_info mcp23018_i2c = {
|
||||
.regmap = &mcp23x17_regmap,
|
||||
.label = "mcp23018",
|
||||
.type = MCP_TYPE_018,
|
||||
.ngpio = 16,
|
||||
.reg_shift = 1,
|
||||
};
|
||||
|
||||
static const struct i2c_device_id mcp230xx_id[] = {
|
||||
{ "mcp23008", MCP_TYPE_008 },
|
||||
{ "mcp23017", MCP_TYPE_017 },
|
||||
{ "mcp23018", MCP_TYPE_018 },
|
||||
{ "mcp23008", (kernel_ulong_t)&mcp23008_i2c },
|
||||
{ "mcp23017", (kernel_ulong_t)&mcp23017_i2c },
|
||||
{ "mcp23018", (kernel_ulong_t)&mcp23018_i2c },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, mcp230xx_id);
|
||||
|
||||
static const struct of_device_id mcp23s08_i2c_of_match[] = {
|
||||
{
|
||||
.compatible = "microchip,mcp23008",
|
||||
.data = (void *) MCP_TYPE_008,
|
||||
},
|
||||
{
|
||||
.compatible = "microchip,mcp23017",
|
||||
.data = (void *) MCP_TYPE_017,
|
||||
},
|
||||
{
|
||||
.compatible = "microchip,mcp23018",
|
||||
.data = (void *) MCP_TYPE_018,
|
||||
},
|
||||
{ .compatible = "microchip,mcp23008", .data = &mcp23008_i2c },
|
||||
{ .compatible = "microchip,mcp23017", .data = &mcp23017_i2c },
|
||||
{ .compatible = "microchip,mcp23018", .data = &mcp23018_i2c },
|
||||
/* NOTE: The use of the mcp prefix is deprecated and will be removed. */
|
||||
{
|
||||
.compatible = "mcp,mcp23008",
|
||||
.data = (void *) MCP_TYPE_008,
|
||||
},
|
||||
{
|
||||
.compatible = "mcp,mcp23017",
|
||||
.data = (void *) MCP_TYPE_017,
|
||||
},
|
||||
{ .compatible = "mcp,mcp23008", .data = &mcp23008_i2c },
|
||||
{ .compatible = "mcp,mcp23017", .data = &mcp23017_i2c },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, mcp23s08_i2c_of_match);
|
||||
|
|
|
|||
|
|
@ -80,21 +80,18 @@ static const struct regmap_bus mcp23sxx_spi_regmap = {
|
|||
};
|
||||
|
||||
static int mcp23s08_spi_regmap_init(struct mcp23s08 *mcp, struct device *dev,
|
||||
unsigned int addr, unsigned int type)
|
||||
unsigned int addr,
|
||||
const struct mcp23s08_info *info)
|
||||
{
|
||||
const struct regmap_config *config;
|
||||
struct regmap_config *copy;
|
||||
const char *name;
|
||||
|
||||
switch (type) {
|
||||
switch (info->type) {
|
||||
case MCP_TYPE_S08:
|
||||
mcp->reg_shift = 0;
|
||||
mcp->chip.ngpio = 8;
|
||||
mcp->chip.label = devm_kasprintf(dev, GFP_KERNEL, "mcp23s08.%d", addr);
|
||||
if (!mcp->chip.label)
|
||||
return -ENOMEM;
|
||||
|
||||
config = &mcp23x08_regmap;
|
||||
name = devm_kasprintf(dev, GFP_KERNEL, "%d", addr);
|
||||
if (!name)
|
||||
return -ENOMEM;
|
||||
|
|
@ -102,13 +99,10 @@ static int mcp23s08_spi_regmap_init(struct mcp23s08 *mcp, struct device *dev,
|
|||
break;
|
||||
|
||||
case MCP_TYPE_S17:
|
||||
mcp->reg_shift = 1;
|
||||
mcp->chip.ngpio = 16;
|
||||
mcp->chip.label = devm_kasprintf(dev, GFP_KERNEL, "mcp23s17.%d", addr);
|
||||
if (!mcp->chip.label)
|
||||
return -ENOMEM;
|
||||
|
||||
config = &mcp23x17_regmap;
|
||||
name = devm_kasprintf(dev, GFP_KERNEL, "%d", addr);
|
||||
if (!name)
|
||||
return -ENOMEM;
|
||||
|
|
@ -116,20 +110,18 @@ static int mcp23s08_spi_regmap_init(struct mcp23s08 *mcp, struct device *dev,
|
|||
break;
|
||||
|
||||
case MCP_TYPE_S18:
|
||||
mcp->reg_shift = 1;
|
||||
mcp->chip.ngpio = 16;
|
||||
mcp->chip.label = "mcp23s18";
|
||||
|
||||
config = &mcp23x17_regmap;
|
||||
name = config->name;
|
||||
mcp->chip.label = info->label;
|
||||
name = info->regmap->name;
|
||||
break;
|
||||
|
||||
default:
|
||||
dev_err(dev, "invalid device type (%d)\n", type);
|
||||
dev_err(dev, "invalid device type (%d)\n", info->type);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
copy = devm_kmemdup(dev, config, sizeof(*config), GFP_KERNEL);
|
||||
mcp->reg_shift = info->reg_shift;
|
||||
mcp->chip.ngpio = info->ngpio;
|
||||
copy = devm_kmemdup(dev, info->regmap, sizeof(*info->regmap), GFP_KERNEL);
|
||||
if (!copy)
|
||||
return -ENOMEM;
|
||||
|
||||
|
|
@ -144,16 +136,16 @@ static int mcp23s08_spi_regmap_init(struct mcp23s08 *mcp, struct device *dev,
|
|||
static int mcp23s08_probe(struct spi_device *spi)
|
||||
{
|
||||
struct mcp23s08_driver_data *data;
|
||||
const struct mcp23s08_info *info;
|
||||
struct device *dev = &spi->dev;
|
||||
unsigned long spi_present_mask;
|
||||
unsigned int ngpio = 0;
|
||||
unsigned int type;
|
||||
unsigned int addr;
|
||||
int chips;
|
||||
int ret;
|
||||
u32 v;
|
||||
|
||||
type = (uintptr_t)spi_get_device_match_data(spi);
|
||||
info = spi_get_device_match_data(spi);
|
||||
|
||||
ret = device_property_read_u32(dev, "microchip,spi-present-mask", &v);
|
||||
if (ret) {
|
||||
|
|
@ -182,7 +174,7 @@ static int mcp23s08_probe(struct spi_device *spi)
|
|||
data->mcp[addr] = &data->chip[--chips];
|
||||
data->mcp[addr]->irq = spi->irq;
|
||||
|
||||
ret = mcp23s08_spi_regmap_init(data->mcp[addr], dev, addr, type);
|
||||
ret = mcp23s08_spi_regmap_init(data->mcp[addr], dev, addr, info);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
|
|
@ -192,7 +184,8 @@ static int mcp23s08_probe(struct spi_device *spi)
|
|||
if (!data->mcp[addr]->pinctrl_desc.name)
|
||||
return -ENOMEM;
|
||||
|
||||
ret = mcp23s08_probe_one(data->mcp[addr], dev, 0x40 | (addr << 1), type, -1);
|
||||
ret = mcp23s08_probe_one(data->mcp[addr], dev, 0x40 | (addr << 1),
|
||||
info->type, -1);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
|
|
@ -203,36 +196,43 @@ static int mcp23s08_probe(struct spi_device *spi)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static const struct mcp23s08_info mcp23s08_spi = {
|
||||
.regmap = &mcp23x08_regmap,
|
||||
.type = MCP_TYPE_S08,
|
||||
.ngpio = 8,
|
||||
.reg_shift = 0,
|
||||
};
|
||||
|
||||
static const struct mcp23s08_info mcp23s17_spi = {
|
||||
.regmap = &mcp23x17_regmap,
|
||||
.type = MCP_TYPE_S17,
|
||||
.ngpio = 16,
|
||||
.reg_shift = 1,
|
||||
};
|
||||
|
||||
static const struct mcp23s08_info mcp23s18_spi = {
|
||||
.regmap = &mcp23x17_regmap,
|
||||
.label = "mcp23s18",
|
||||
.type = MCP_TYPE_S18,
|
||||
.ngpio = 16,
|
||||
.reg_shift = 1,
|
||||
};
|
||||
|
||||
static const struct spi_device_id mcp23s08_ids[] = {
|
||||
{ "mcp23s08", MCP_TYPE_S08 },
|
||||
{ "mcp23s17", MCP_TYPE_S17 },
|
||||
{ "mcp23s18", MCP_TYPE_S18 },
|
||||
{ "mcp23s08", (kernel_ulong_t)&mcp23s08_spi },
|
||||
{ "mcp23s17", (kernel_ulong_t)&mcp23s17_spi },
|
||||
{ "mcp23s18", (kernel_ulong_t)&mcp23s18_spi },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(spi, mcp23s08_ids);
|
||||
|
||||
static const struct of_device_id mcp23s08_spi_of_match[] = {
|
||||
{
|
||||
.compatible = "microchip,mcp23s08",
|
||||
.data = (void *) MCP_TYPE_S08,
|
||||
},
|
||||
{
|
||||
.compatible = "microchip,mcp23s17",
|
||||
.data = (void *) MCP_TYPE_S17,
|
||||
},
|
||||
{
|
||||
.compatible = "microchip,mcp23s18",
|
||||
.data = (void *) MCP_TYPE_S18,
|
||||
},
|
||||
{ .compatible = "microchip,mcp23s08", .data = &mcp23s08_spi },
|
||||
{ .compatible = "microchip,mcp23s17", .data = &mcp23s17_spi },
|
||||
{ .compatible = "microchip,mcp23s18", .data = &mcp23s18_spi },
|
||||
/* NOTE: The use of the mcp prefix is deprecated and will be removed. */
|
||||
{
|
||||
.compatible = "mcp,mcp23s08",
|
||||
.data = (void *) MCP_TYPE_S08,
|
||||
},
|
||||
{
|
||||
.compatible = "mcp,mcp23s17",
|
||||
.data = (void *) MCP_TYPE_S17,
|
||||
},
|
||||
{ .compatible = "mcp,mcp23s08", .data = &mcp23s08_spi },
|
||||
{ .compatible = "mcp,mcp23s17", .data = &mcp23s17_spi },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, mcp23s08_spi_of_match);
|
||||
|
|
|
|||
Loading…
Reference in a new issue