On Mon, Jul 02, 2018 at 02:40:28PM +0300, Mikko Perttunen wrote:

Add a new TXDONE option, TXDONE_BY_BLOCK. With this option, the
send_data function of the mailbox driver is expected to block until
the message has been sent. The new option is used with the Tegra
Combined UART driver to minimize unnecessary overhead when transmitting
data.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
---
 drivers/mailbox/mailbox.c | 30 +++++++++++++++++++++---------
 drivers/mailbox/mailbox.h |  1 +
 2 files changed, 22 insertions(+), 9 deletions(-)

Jassi,

any comments on this patch and 4/8 and 5/8? Greg's already said that
he'd be fine if I take the serial driver (patch 6/8) through the Tegra
tree to resolve the dependencies. If you're okay with the three mailbox
patches I can pick them up as well with your Acked-by.

Otherwise, if you'd prefer to take these through the mailbox tree, let
me know and I'll wait until sometime after v4.19-rc1 before I send out
pull requests for the DT changes.

Thanks,
Thierry