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platform/chrome: chromeos_laptop - Restructure device associations 

The previous code had a single DMI matching entry
for each device on a board. Instead provide a single
DMI entry for each board which references a structure
about each board that lists the associated peripherals.
This allows for a lower number of DMI matching sequences
as well making it easier to add new boards.

Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Aaron Durbin 2013-10-20 20:58:24 -07:00 committed by Olof Johansson
parent 9742e127cd
commit ec199dd57e
1 changed files with 140 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

225
drivers/platform/chrome/chromeos_laptop.c
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@ -53,6 +53,17 @@ enum i2c_adapter_type {
I2C_ADAPTER_PANEL,
};
struct i2c_peripheral {
void (*add)(enum i2c_adapter_type type);
enum i2c_adapter_type type;
};
#define MAX_I2C_PERIPHERALS 3
struct chromeos_laptop {
struct i2c_peripheral i2c_peripherals[MAX_I2C_PERIPHERALS];
};
static struct i2c_board_info __initdata cyapa_device = {
I2C_BOARD_INFO("cyapa", CYAPA_TP_I2C_ADDR),
.flags = I2C_CLIENT_WAKE,
@ -233,149 +244,193 @@ static __init struct i2c_client *add_i2c_device(const char *name,
addr_list);
}
static struct i2c_client __init *add_smbus_device(const char *name,
struct i2c_board_info *info)
static int __init setup_cyapa_tp(enum i2c_adapter_type type)
{
return add_i2c_device(name, I2C_ADAPTER_SMBUS, info);
}
static int __init setup_cyapa_smbus_tp(const struct dmi_system_id *id)
{
/* add cyapa touchpad on smbus */
tp = add_smbus_device("trackpad", &cyapa_device);
/* add cyapa touchpad */
tp = add_i2c_device("trackpad", type, &cyapa_device);
return 0;
}
static int __init setup_atmel_224s_tp(const struct dmi_system_id *id)
static int __init setup_atmel_224s_tp(enum i2c_adapter_type type)
{
const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR,
ATMEL_TP_I2C_ADDR,
I2C_CLIENT_END };
/* add atmel mxt touchpad on VGA DDC GMBus */
tp = add_probed_i2c_device("trackpad", I2C_ADAPTER_VGADDC,
/* add atmel mxt touchpad */
tp = add_probed_i2c_device("trackpad", type,
&atmel_224s_tp_device, addr_list);
return 0;
}
static int __init setup_atmel_1664s_ts(const struct dmi_system_id *id)
static int __init setup_atmel_1664s_ts(enum i2c_adapter_type type)
{
const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR,
ATMEL_TS_I2C_ADDR,
I2C_CLIENT_END };
/* add atmel mxt touch device on PANEL GMBus */
ts = add_probed_i2c_device("touchscreen", I2C_ADAPTER_PANEL,
/* add atmel mxt touch device */
ts = add_probed_i2c_device("touchscreen", type,
&atmel_1664s_device, addr_list);
return 0;
}
static int __init setup_isl29018_als(const struct dmi_system_id *id)
static int __init setup_isl29018_als(enum i2c_adapter_type type)
{
/* add isl29018 light sensor */
als = add_smbus_device("lightsensor", &isl_als_device);
als = add_i2c_device("lightsensor", type, &isl_als_device);
return 0;
}
static int __init setup_isl29023_als(const struct dmi_system_id *id)
static int __init setup_tsl2583_als(enum i2c_adapter_type type)
{
/* add isl29023 light sensor on Panel GMBus */
als = add_i2c_device("lightsensor", I2C_ADAPTER_PANEL,
&isl_als_device);
/* add tsl2583 light sensor */
als = add_i2c_device(NULL, type, &tsl2583_als_device);
return 0;
}
static int __init setup_tsl2583_als(const struct dmi_system_id *id)
static int __init setup_tsl2563_als(enum i2c_adapter_type type)
{
/* add tsl2583 light sensor on smbus */
als = add_smbus_device(NULL, &tsl2583_als_device);
/* add tsl2563 light sensor */
als = add_i2c_device(NULL, type, &tsl2563_als_device);
return 0;
}
static int __init setup_tsl2563_als(const struct dmi_system_id *id)
static int __init
chromeos_laptop_add_peripherals(const struct dmi_system_id *id)
{
/* add tsl2563 light sensor on smbus */
als = add_smbus_device(NULL, &tsl2563_als_device);
return 0;
int i;
struct chromeos_laptop *cros_laptop = (void *)id->driver_data;
pr_debug("Adding peripherals for %s.\n", id->ident);
for (i = 0; i < MAX_I2C_PERIPHERALS; i++) {
struct i2c_peripheral *i2c_dev;
i2c_dev = &cros_laptop->i2c_peripherals[i];
/* No more peripherals. */
if (i2c_dev->add == NULL)
break;
/* Add the device. */
i2c_dev->add(i2c_dev->type);
}
/* Indicate to dmi_scan that processing is done. */
return 1;
}
static struct chromeos_laptop samsung_series_5_550 __initdata = {
.i2c_peripherals = {
/* Touchpad. */
{ .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS },
/* Light Sensor. */
{ .add = setup_isl29018_als, I2C_ADAPTER_SMBUS },
},
};
static struct chromeos_laptop samsung_series_5 __initdata = {
.i2c_peripherals = {
/* Light Sensor. */
{ .add = setup_tsl2583_als, I2C_ADAPTER_SMBUS },
},
};
static struct chromeos_laptop chromebook_pixel __initdata = {
.i2c_peripherals = {
/* Touch Screen. */
{ .add = setup_atmel_1664s_ts, I2C_ADAPTER_PANEL },
/* Touchpad. */
{ .add = setup_atmel_224s_tp, I2C_ADAPTER_VGADDC },
/* Light Sensor. */
{ .add = setup_isl29018_als, I2C_ADAPTER_PANEL },
},
};
static struct chromeos_laptop acer_c7_chromebook __initdata = {
.i2c_peripherals = {
/* Touchpad. */
{ .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS },
},
};
static struct chromeos_laptop acer_ac700 __initdata = {
.i2c_peripherals = {
/* Light Sensor. */
{ .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS },
},
};
static struct chromeos_laptop hp_pavilion_14_chromebook __initdata = {
.i2c_peripherals = {
/* Touchpad. */
{ .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS },
},
};
static struct chromeos_laptop cr48 __initdata = {
.i2c_peripherals = {
/* Light Sensor. */
{ .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS },
},
};
#define _CBDD(board_) \
.callback = &chromeos_laptop_add_peripherals, \
.driver_data = (void *)&board_
static struct dmi_system_id __initdata chromeos_laptop_dmi_table[] = {
{
.ident = "Samsung Series 5 550 - Touchpad",
.ident = "Samsung Series 5 550",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
},
.callback = setup_cyapa_smbus_tp,
_CBDD(samsung_series_5_550),
},
{
.ident = "Chromebook Pixel - Touchscreen",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
},
.callback = setup_atmel_1664s_ts,
},
{
.ident = "Chromebook Pixel - Touchpad",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
},
.callback = setup_atmel_224s_tp,
},
{
.ident = "Samsung Series 5 550 - Light Sensor",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
},
.callback = setup_isl29018_als,
},
{
.ident = "Chromebook Pixel - Light Sensor",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
},
.callback = setup_isl29023_als,
},
{
.ident = "Acer C7 Chromebook - Touchpad",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"),
},
.callback = setup_cyapa_smbus_tp,
},
{
.ident = "HP Pavilion 14 Chromebook - Touchpad",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"),
},
.callback = setup_cyapa_smbus_tp,
},
{
.ident = "Samsung Series 5 - Light Sensor",
.ident = "Samsung Series 5",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Alex"),
},
.callback = setup_tsl2583_als,
_CBDD(samsung_series_5),
},
{
.ident = "Cr-48 - Light Sensor",
.ident = "Chromebook Pixel",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
},
.callback = setup_tsl2563_als,
_CBDD(chromebook_pixel),
},
{
.ident = "Acer AC700 - Light Sensor",
.ident = "Acer C7 Chromebook",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"),
},
_CBDD(acer_c7_chromebook),
},
{
.ident = "Acer AC700",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"),
},
.callback = setup_tsl2563_als,
_CBDD(acer_ac700),
},
{
.ident = "HP Pavilion 14 Chromebook",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"),
},
_CBDD(hp_pavilion_14_chromebook),
},
{
.ident = "Cr-48",
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
},
_CBDD(cr48),
},
{ }
};