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| author |   Pavel Machek <pavel@ucw.cz> | 2009-08-08 15:40:50 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-15 12:02:05 -0700 |
| commit | c60adf37eb9cbb244025a0d02ba41bc7931bc674 (patch) | |
| tree | 6bc16bf8f6ed936c890930c30f34afb4193a718c /drivers/staging/dream | |
| parent | Staging: dream: add support for input on GPIO pins (diff) | |
| download | linux-dev-c60adf37eb9cbb244025a0d02ba41bc7931bc674.tar.xz linux-dev-c60adf37eb9cbb244025a0d02ba41bc7931bc674.zip | |
Staging: dream: Synaptics touchscreen: check that smbus is available
Check that SMBUS APIs are available in touchscreen driver.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/dream')
| -rw-r--r-- | drivers/staging/dream/synaptics_i2c_rmi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/staging/dream/synaptics_i2c_rmi.c b/drivers/staging/dream/synaptics_i2c_rmi.c index 9190a9d86c7f..ae696d3bc8e6 100644 --- a/drivers/staging/dream/synaptics_i2c_rmi.c +++ b/drivers/staging/dream/synaptics_i2c_rmi.c @@ -373,6 +373,12 @@ static int __devinit synaptics_ts_probe( goto err_check_functionality_failed; } + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA)) { + pr_err("synaptics_ts_probe: need I2C_FUNC_SMBUS_WORD_DATA\n"); + ret = -ENODEV; + goto err_check_functionality_failed; + } + ts = kzalloc(sizeof(*ts), GFP_KERNEL); if (ts == NULL) { ret = -ENOMEM; |