Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1736205

[PATCH 1/2] i2c: designware: switch to suspend_late/resume_early

From Rajat Jain <rajatja@google.com>
Newsgroups linux.kernel
Subject [PATCH 1/2] i2c: designware: switch to suspend_late/resume_early
Date 2017-09-21 00:40 +0200
Message-ID <urVOW-J7-21@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

Show all headers | View raw


Ref: https://lkml.org/lkml/2017/9/19/649

The bus controllers should suspend the bus operations only after
all of the devices on the bus have suspended their device
completely. Since the i2c_client drivers could be talking to
their devices in their suspend_late() calls, lets ensure that the
bus is alive by that time. Thus moving the controller suspend logic to
suspend_late().

Signed-off-by: Rajat Jain <rajatja@google.com>
---
 drivers/i2c/busses/i2c-designware-platdrv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 0e65b97842b4..66dd7f844c40 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -468,7 +468,7 @@ static int dw_i2c_plat_suspend(struct device *dev)
 static const struct dev_pm_ops dw_i2c_dev_pm_ops = {
 	.prepare = dw_i2c_plat_prepare,
 	.complete = dw_i2c_plat_complete,
-	SET_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
 	SET_RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend,
 			   dw_i2c_plat_resume,
 			   NULL)
-- 
2.14.1.821.g8fa685d3b7-goog

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

[PATCH 1/2] i2c: designware: switch to suspend_late/resume_early Rajat Jain <rajatja@google.com> - 2017-09-21 00:40 +0200
  Re: [PATCH 1/2] i2c: designware: switch to suspend_late/resume_early Rajat Jain <rajatxjain@gmail.com> - 2017-09-21 00:50 +0200
  Re: [PATCH 1/2] i2c: designware: switch to suspend_late/resume_early "Rafael J. Wysocki" <rafael@kernel.org> - 2017-09-21 02:30 +0200
    Re: [PATCH 1/2] i2c: designware: switch to suspend_late/resume_early Rajat Jain <rajatja@google.com> - 2017-09-21 03:20 +0200
      Re: [PATCH 1/2] i2c: designware: switch to suspend_late/resume_early "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-09-21 16:30 +0200
        Re: [PATCH 1/2] i2c: designware: switch to suspend_late/resume_early "Rafael J. Wysocki" <rafael@kernel.org> - 2017-09-23 15:00 +0200
          Re: [PATCH 1/2] i2c: designware: switch to suspend_late/resume_early Rajat Jain <rajatxjain@gmail.com> - 2017-09-23 17:50 +0200
            Re: [PATCH 1/2] i2c: designware: switch to suspend_late/resume_early Rajat Jain <rajatxjain@gmail.com> - 2017-09-23 18:20 +0200

csiph-web