Re: [PATCHv1 0/6] leds: pca9653x: support inverted outputs and cleanups

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




Hi again

On Tue, Apr 19, 2016 at 3:27 PM, Olliver Schinagl <oliver@xxxxxxxxxxx> wrote:
> Hey Ricardo,

> Without actually looking at the code right now, but the driver does a
> read/modify/write on the register, and a register is shared among several
> leds. So in that regard, it makes sense and I don't think it's very
> expensive to move the lock, since we have to lock for the write a few lines
> down anyway.

Actually, the code is only making sure that PCA963X_MODE2_DMBLNK is
on. It is never cleared afterwards.

It will be great if you could set that bit on probe and remove those
two lines and verify that it works on real hardware.


The move of the lock can be a bit expensive. i2c writes can take a
while to be performed, this is why only ledout was protected
initially.

Best regards
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux