Hi Robert,
On Mon, Jun 03, 2019 at 10:01:55PM +0200, Robert Jarzmik wrote:
> In the patch refactoring the fw-node, the mt9m111 was broken for all
> platform_data based platforms, which were the first aim of this
> driver. Only the devicetree platform are still functional, probably
> because the testing was done on these.
>
> The result is that -EINVAL is systematically return for such platforms,
> what this patch fixes.
>
> Fixes: 98480d65c48c ("media: mt9m111: allow to setup pixclk polarity")
> Signed-off-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>
> ---
> drivers/media/i2c/mt9m111.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/i2c/mt9m111.c b/drivers/media/i2c/mt9m111.c
> index 168a5c74f368..d65c23301498 100644
> --- a/drivers/media/i2c/mt9m111.c
> +++ b/drivers/media/i2c/mt9m111.c
> @@ -1209,7 +1209,7 @@ static int mt9m111_probe(struct i2c_client *client,
> {
> struct mt9m111 *mt9m111;
> struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
> - int ret;
> + int ret = 0;
>
> if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
> dev_warn(&adapter->dev,
> @@ -1221,7 +1221,8 @@ static int mt9m111_probe(struct i2c_client *client,
> if (!mt9m111)
> return -ENOMEM;
>
> - ret = mt9m111_probe_fw(client, mt9m111);
> + if (client->dev.of_node)
> + ret = mt9m111_probe_fw(client, mt9m111);
> if (ret)
> return ret;
>
This didn't quite apply with the i2c adapter cleanups. I applied it,
reworking the ret check, and the patch became:
diff --git a/drivers/media/i2c/mt9m111.c b/drivers/media/i2c/mt9m111.c
index bd3a51c3b081..9761a6105407 100644
--- a/drivers/media/i2c/mt9m111.c
+++ b/drivers/media/i2c/mt9m111.c
@@ -1263,9 +1263,11 @@ static int mt9m111_probe(struct i2c_client *client,
if (!mt9m111)
return -ENOMEM;
- ret = mt9m111_probe_fw(client, mt9m111);
- if (ret)
- return ret;
+ if (dev_fwnode(client->dev)) {
+ ret = mt9m111_probe_fw(client, mt9m111);
+ if (ret)
+ return ret;
+ }
mt9m111->clk = v4l2_clk_get(&client->dev, "mclk");
if (IS_ERR(mt9m111->clk))
I hope this is fine.
--
Kind regards,
Sakari Ailus
