On 23 June 2016 at 17:59, Jon Hunter jonathanh@nvidia.com wrote:
If the 'i2c-bus' device-tree node is present for an I2C adapter then parse this subnode for I2C slaves.
Signed-off-by: Jon Hunter jonathanh@nvidia.com
drivers/i2c/i2c-core.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 952d2f0c02c5..71ad532be1d8 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1452,7 +1452,7 @@ static struct i2c_client *of_i2c_register_device(struct i2c_adapter *adap,
static void of_i2c_register_devices(struct i2c_adapter *adap) {
struct device_node *node;
struct device_node *bus, *node; /* Only register child devices if the adapter has a node pointer set */ if (!adap->dev.of_node)@@ -1460,11 +1460,17 @@ static void of_i2c_register_devices(struct i2c_adapter *adap)
dev_dbg(&adap->dev, "of_i2c: walking child nodes\n");
for_each_available_child_of_node(adap->dev.of_node, node) {
bus = of_get_child_by_name(adap->dev.of_node, "i2c-bus");if (!bus)bus = of_node_get(adap->dev.of_node);for_each_available_child_of_node(bus, node) { if (of_node_test_and_set_flag(node, OF_POPULATED)) continue; of_i2c_register_device(adap, node); }of_node_put(bus);}
Sorry for not commenting earlier, but I only found the issue yesterday.
I'm bothered as well by the "modalias failure" error message but in my case the node doesn't have any i2c devices, so this patch isn't a complete solution to that problem.
Has this been considered already?
Thanks,
Tomeu
static int of_dev_node_match(struct device *dev, void *data)
2.1.4
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