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authorJiri Kosina <jkosina@suse.cz>2011-05-18 19:06:31 +0400
committerJiri Kosina <jkosina@suse.cz>2011-05-18 19:06:49 +0400
commit6b7b8e488bbdedeccabdd001a78ffcbe43bb8a3a (patch)
treef2f77cc31b4548745778fca6a51b09e1d8a49804 /drivers/i2c/algos/i2c-algo-bit.c
parentb50f315cbb865079a16a12fd9ae6083f98fd592c (diff)
parentc1d10d18c542278b7fbc413c289d3cb6219da6b3 (diff)
downloadlinux-6b7b8e488bbdedeccabdd001a78ffcbe43bb8a3a.tar.xz
Merge branch 'master' into upstream.
This is sync with Linus' tree to receive KEY_IMAGES definition that went in through input tree.
Diffstat (limited to 'drivers/i2c/algos/i2c-algo-bit.c')
-rw-r--r--drivers/i2c/algos/i2c-algo-bit.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index 38319a69bd0a..d6d58684712b 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -232,9 +232,17 @@ static int i2c_inb(struct i2c_adapter *i2c_adap)
* Sanity check for the adapter hardware - check the reaction of
* the bus lines only if it seems to be idle.
*/
-static int test_bus(struct i2c_algo_bit_data *adap, char *name)
+static int test_bus(struct i2c_adapter *i2c_adap)
{
- int scl, sda;
+ struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
+ const char *name = i2c_adap->name;
+ int scl, sda, ret;
+
+ if (adap->pre_xfer) {
+ ret = adap->pre_xfer(i2c_adap);
+ if (ret < 0)
+ return -ENODEV;
+ }
if (adap->getscl == NULL)
pr_info("%s: Testing SDA only, SCL is not readable\n", name);
@@ -297,11 +305,19 @@ static int test_bus(struct i2c_algo_bit_data *adap, char *name)
"while pulling SCL high!\n", name);
goto bailout;
}
+
+ if (adap->post_xfer)
+ adap->post_xfer(i2c_adap);
+
pr_info("%s: Test OK\n", name);
return 0;
bailout:
sdahi(adap);
sclhi(adap);
+
+ if (adap->post_xfer)
+ adap->post_xfer(i2c_adap);
+
return -ENODEV;
}
@@ -607,7 +623,7 @@ static int __i2c_bit_add_bus(struct i2c_adapter *adap,
int ret;
if (bit_test) {
- ret = test_bus(bit_adap, adap->name);
+ ret = test_bus(adap);
if (ret < 0)
return -ENODEV;
}