Hi,

On Tue, Jun 9, 2020 at 5:05 AM Harigovindan P [off-list ref] wrote:

ti-sn65dsi86 bridge is enumerated as a runtime device. When
suspend is triggered, PM core adds a refcount on all the
devices and calls device suspend, since usage count is
already incremented, runtime suspend will not be called
and it kept the bridge regulators and gpios ON which resulted
in platform not entering into XO shutdown.

The "XO shutdown" concept is a very Qualcomm-specific concept but this
bridge chip could be used on any board.  ...but I think it's fine to
leave it as-is since the meaning is clear enough.

Add changes to force suspend on the runtime device during pm sleep.

Signed-off-by: Harigovindan P <redacted>
---

Changes in v2:
        - Include bridge name in the commit message and
        remove dependent patchwork link from the commit
        text as bridge is independent of OEM(Stephen Boyd)

Changes in v3:
        - Updating changelog to explain the need for patch

 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 2 ++
 1 file changed, 2 insertions(+)

Note that it's generally considered nice to CC folks who commented on
previous versions of the patch since they are folks who are almost
certainly interested in it.  In this case that would be me and Stephen
Boyd.

You could also, in theory, carry Stephen's Reviewed-by patch from v1
since you have fixed the subject as he requested and you have now also
fixed the commit message to have some details.

Reviewed-by: Douglas Anderson <dianders@chromium.org>