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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-28 12:32:01 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-28 12:32:01 -0700 |
commit | a1842b2b6fc011145c24180744d62d88b895f8e3 (patch) | |
tree | 5232407e751e0e5209fcb0f62b8032d1bbe75d00 /drivers/platform/chrome/chromeos_laptop.c | |
parent | Merge tag 'sound-4.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound (diff) | |
parent | Revert "platform/chrome: chromeos_laptop: Add Leon Touch" (diff) | |
download | wireguard-linux-a1842b2b6fc011145c24180744d62d88b895f8e3.tar.xz wireguard-linux-a1842b2b6fc011145c24180744d62d88b895f8e3.zip |
Merge tag 'chrome-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform
Pull chrome platform updates from Olof Johansson
"A handful of Chrome driver and binding changes this merge window:
- a few patches to fix probing and configuration of pstore
- a few patches adding Elan touchpad registration on a few devices
- EC changes: a security fix dealing with max message sizes and
addition of compat_ioctl support.
- keyboard backlight control support
There was also an accidential duplicate registration of trackpads on
'Leon', which was reverted just recently"
* tag 'chrome-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform:
Revert "platform/chrome: chromeos_laptop: Add Leon Touch"
platform/chrome: chromeos_laptop - Add Elan touchpad for Wolf
platform/chrome: chromeos_laptop - Add elan trackpad option for C720
platform/chrome: cros_ec_dev - Populate compat_ioctl
platform/chrome: cros_ec_lightbar - use name instead of ID to hide lightbar attributes
platform/chrome: cros_ec_dev - Fix security issue
platform/chrome: Add Chrome OS keyboard backlight LEDs support
platform/chrome: use to_platform_device()
platform/chrome: pstore: Move to larger record size.
platform/chrome: pstore: probe for ramoops buffer using acpi
platform/chrome: chromeos_laptop: Add Leon Touch
Diffstat (limited to 'drivers/platform/chrome/chromeos_laptop.c')
-rw-r--r-- | drivers/platform/chrome/chromeos_laptop.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c index 2b441e9ae593..e8a44a9bc916 100644 --- a/drivers/platform/chrome/chromeos_laptop.c +++ b/drivers/platform/chrome/chromeos_laptop.c @@ -34,6 +34,7 @@ #define ATMEL_TS_I2C_ADDR 0x4a #define ATMEL_TS_I2C_BL_ADDR 0x26 #define CYAPA_TP_I2C_ADDR 0x67 +#define ELAN_TP_I2C_ADDR 0x15 #define ISL_ALS_I2C_ADDR 0x44 #define TAOS_ALS_I2C_ADDR 0x29 @@ -73,7 +74,7 @@ struct i2c_peripheral { int tries; }; -#define MAX_I2C_PERIPHERALS 3 +#define MAX_I2C_PERIPHERALS 4 struct chromeos_laptop { struct i2c_peripheral i2c_peripherals[MAX_I2C_PERIPHERALS]; @@ -86,6 +87,11 @@ static struct i2c_board_info cyapa_device = { .flags = I2C_CLIENT_WAKE, }; +static struct i2c_board_info elantech_device = { + I2C_BOARD_INFO("elan_i2c", ELAN_TP_I2C_ADDR), + .flags = I2C_CLIENT_WAKE, +}; + static struct i2c_board_info isl_als_device = { I2C_BOARD_INFO("isl29018", ISL_ALS_I2C_ADDR), }; @@ -306,6 +312,16 @@ static int setup_atmel_224s_tp(enum i2c_adapter_type type) return (!tp) ? -EAGAIN : 0; } +static int setup_elantech_tp(enum i2c_adapter_type type) +{ + if (tp) + return 0; + + /* add elantech touchpad */ + tp = add_i2c_device("trackpad", type, &elantech_device); + return (!tp) ? -EAGAIN : 0; +} + static int setup_atmel_1664s_ts(enum i2c_adapter_type type) { const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR, @@ -445,6 +461,8 @@ static struct chromeos_laptop dell_chromebook_11 = { .i2c_peripherals = { /* Touchpad. */ { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, + /* Elan Touchpad option. */ + { .add = setup_elantech_tp, I2C_ADAPTER_DESIGNWARE_0 }, }, }; @@ -475,6 +493,8 @@ static struct chromeos_laptop acer_c720 = { { .add = setup_atmel_1664s_ts, I2C_ADAPTER_DESIGNWARE_1 }, /* Touchpad. */ { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, + /* Elan Touchpad option. */ + { .add = setup_elantech_tp, I2C_ADAPTER_DESIGNWARE_0 }, /* Light Sensor. */ { .add = setup_isl29018_als, I2C_ADAPTER_DESIGNWARE_1 }, }, |