Hi,
On 01/11/2013 06:57 PM, Doug Anderson wrote:
The commit: "i2c-core: dt: Pick i2c bus number from i2c alias if
present" adds support for automatically picking the bus number based
on the alias ID. Remove the now unnecessary code from i2c-pxa that
did the same thing.
Signed-off-by: Doug Anderson<dianders@xxxxxxxxxxxx>
Acked-by: Haojian Zhuang<haojian.zhuang@xxxxxxxxx>
---
drivers/i2c/busses/i2c-pxa.c | 8 +-------
1 files changed, 1 insertions(+), 7 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 1034d93..8ee9fa0 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -1053,16 +1053,10 @@ static int i2c_pxa_probe_dt(struct platform_device *pdev, struct pxa_i2c *i2c,
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *of_id =
of_match_device(i2c_pxa_dt_ids,&pdev->dev);
- int ret;
if (!of_id)
return 1;
- ret = of_alias_get_id(np, "i2c");
- if (ret< 0) {
- dev_err(&pdev->dev, "failed to get alias id, errno %d\n", ret);
- return ret;
- }
- pdev->id = ret;
+ pdev->id = -1;
I think assignments like this are illegal. At this point the device is
already registered and modifying pdev->id can cause issues at the core
code.
It might be better to have the bus number stored in struct pxa_i2c,
initialized with pdev->id value for non-dt and now with -1 for dt case.
I realize it is not something your patch is intended to deal with,
but since you're touching this code maybe it's worth to fix that issue
as well ?
--
Thanks,
Sylwester
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