This will allow support for devices that may appear at more than
one i2c address at boot time. The specific example is the atmel_mxt touch
devices, which may appear at a different address if it comes up
in bootloader mode.
Signed-off-by: Benson Leung <bleung@xxxxxxxxxxxx>
---
drivers/platform/x86/chromeos_laptop.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/platform/x86/chromeos_laptop.c b/drivers/platform/x86/chromeos_laptop.c
index 3e405d7..f3a292b 100644
--- a/drivers/platform/x86/chromeos_laptop.c
+++ b/drivers/platform/x86/chromeos_laptop.c
@@ -144,6 +144,26 @@ static int __init find_i2c_adapter_num(enum i2c_adapter_type type)
}
/*
+ * Takes a list of addresses in addrs as such :
+ * { addr1, ... , addrn, I2C_CLIENT_END };
+ * add_probed_i2c_device will use i2c_new_probed_device
+ * and probe for devices at all of the addresses listed.
+ * Returns NULL if no devices found.
+ * See Documentation/i2c/instantiating-devices for more information.
+ */
+static __init struct i2c_client *add_probed_i2c_device(
+ const char *name,
+ enum i2c_adapter_type type,
+ struct i2c_board_info *info,
+ const unsigned short *addrs)
+{
+ return __add_probed_i2c_device(name,
+ find_i2c_adapter_num(type),
+ info,
+ addrs);
+}
+
+/*
* Probes for a device at a single address, the one provided by
* info->addr.
* Returns NULL if no device found.
--
1.8.1.3
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