[lkml]   [2020]   [Jan]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] i2c: meson: implement the master_xfer_atomic callback
On Wed, Jan 08, 2020 at 12:29:01AM +0100, Martin Blumenstingl wrote:
> Boards with some of the 32-bit SoCs (mostly Meson8 and Meson8m2) use a
> Ricoh RN5T618 PMU which acts as system power controller. The driver for
> the system power controller may need to the I2C bus just before shutting
> down or rebooting the system. At this stage the interrupts may be
> disabled already.
> Implement the master_xfer_atomic callback so the driver for the RN5T618
> PMU can communicate properly with the PMU when shutting down or
> rebooting the board. The CTRL register has a status bit which can be
> polled to determine when processing has completed. According to the
> public S805 datasheet the value 0 means "idle" and 1 means "running".
> Signed-off-by: Martin Blumenstingl <>

Applied to for-next, thanks!

[unhandled content-type:application/pgp-signature]
 \ /
  Last update: 2020-01-13 23:16    [W:0.050 / U:0.432 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site