[U-Boot] [PATCH] gpio: dwapb_gpio: fix broken dev->node

Marek Vasut marex at denx.de
Wed May 22 11:42:36 UTC 2019


On 5/22/19 10:46 AM, Simon Goldschmidt wrote:
> On Tue, May 21, 2019 at 10:22 PM Marek Vasut <marex at denx.de> wrote:
>>
>> On 5/21/19 10:03 PM, Simon Goldschmidt wrote:
>>> commit 1b898ffc040b ("gpio: dwapb_gpio: convert to livetree") introduced
>>> a bug in that dev->node of the gpio chip was accidentally set to the
>>> of_node of its bank subnode.
>>>
>>> What it meant to do was assign subdev->node, not dev->node.
>>>
>>> While this doesn't affect too many use cases, iterating over the gpio
>>> chip's properties doesn't work any more after that, so fix this.
>>>
>>> Fixes: commit 1b898ffc040b ("gpio: dwapb_gpio: convert to livetree")
>>> Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
>>> ---
>>>
>>> This fixes a commit that is only 12 days old, so it's a fix for v2019.07
>>>
>>> ---
>>>  drivers/gpio/dwapb_gpio.c | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/gpio/dwapb_gpio.c b/drivers/gpio/dwapb_gpio.c
>>> index 04a2381acd..d6887a396a 100644
>>> --- a/drivers/gpio/dwapb_gpio.c
>>> +++ b/drivers/gpio/dwapb_gpio.c
>>> @@ -190,7 +190,7 @@ static int gpio_dwapb_bind(struct udevice *dev)
>>>               if (ret)
>>>                       return ret;
>>>
>>> -             dev->node = node;
>>> +             subdev->node = node;
>>>               bank++;
>>>       }
>>>
>>>
>> Applied, thanks
> 
> Looking around 'include/dm/device-internal.h', I just saw that a more
> appropriate fix would be to use 'device_bind_ofnode()' instead of calling
> 'device_bind()' and assigning the node ourself by accessing subdev->node.
> 
> Do you want me to send a follow-up or a v2 of this, given that you already
> applied this v1?

Send a follow up patch, I will squash them.

-- 
Best regards,
Marek Vasut


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