1 Jul
2013
1 Jul
'13
12:54 p.m.
Dear Mark Brown,
On Mon, Jul 01, 2013 at 04:16:08PM +0800, Shawn Guo wrote:
/*
* It seems that sgtl5000 takes a longer time to get the registers* ready for write than bread. Let's give it a ramping time before* the first write goes.*/msleep(50);
/* Ensure sgtl5000 will start with sane register values */ ret = sgtl5000_fill_defaults(sgtl5000); if (ret)
This seems like a really odd place to add the sleep - I'd have expected this to be a part of or just after the reset operation. It's a *really* long sleep too, though if that's what you need that's what you need.
The delay might also be caused by the I2C driver, I have this in my ToDo to check, but I didn't get to it yet. On the other hand, if subsequent IO does work, then it's unlikely to be the case.
Also "bread" :)
Of course, sometimes you want to put a lot of things on it, like bacon and such.
Best regards, Marek Vasut