Resizing UITextView in custom UITableViewCell

I have a custom UITableViewCell and I'm trying to resize the UITextView inside it based on the content size. I'm on iOS7 and using Autolayout.

I've tried using the following:

[cell.question setScrollEnabled:YES];
[cell.question sizeToFit];
[cell.question setScrollEnabled:NO];

and

- (CGRect)textViewHeightForAttributedText: (NSAttributedString*)text andWidth: (CGFloat)width
{
    UITextView *calculationView = [[UITextView alloc] init];
    [calculationView setAttributedText:text];
    CGSize size = [calculationView sizeThatFits:CGSizeMake(width, FLT_MAX)];
    CGRect finalFrame = CGRectMake(0, 0, width, size.height);
    return finalFrame;
}

from different SO posts. I'm able to resize the frame. But the issue is I'm not able to see the change visibly. In the sense, when I log it, I can see the change. But the UITextView doesnt resize. I cant find any autolayout dependencies either.

When I disabled AutoLayout, it seems to work. How do I do this, by enabling AutoLayout?

Thanks.

EDIT

Here's my UITextView constraints