diff options
| author | Pavel Machek <pavel@ucw.cz> | 2009-09-18 12:59:22 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 12:23:10 -0800 |
| commit | 05d42522017df477f16c0ebc2d65aa8bde6e0e86 (patch) | |
| tree | 85d00931ef92acefa04044f407d4aef49adf94a5 /drivers | |
| parent | b7fa31849c237b0bbcc03cd65536f0060ee6117d (diff) | |
Staging: dream: Synaptics touchscreen for HTC Dream: check that smbus is available
Check that SMBUS APIs are available in touchscreen driver.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Trilok Soni <soni.trilok@gmail.com>
Cc: <arve@android.com>
Cc: Brian Swetland <swetland@google.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -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 ae696d3bc8e..4de6bc91759 100644 --- a/drivers/staging/dream/synaptics_i2c_rmi.c +++ b/drivers/staging/dream/synaptics_i2c_rmi.c @@ -379,6 +379,12 @@ 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; |