Messages in this thread Patch in this message | | | From | Rajat Jain <> | Subject | [PATCH 1/2] i2c: designware: switch to suspend_late/resume_early | Date | Wed, 20 Sep 2017 15:31:51 -0700 |
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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
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