Commit 57648e86 authored by Roja Rani Yarubandi's avatar Roja Rani Yarubandi Committed by Wolfram Sang
Browse files

i2c: qcom-geni: Suspend and resume the bus during SYSTEM_SLEEP_PM ops 



Mark bus as suspended during system suspend to block the future
transfers. Implement geni_i2c_resume_noirq() to resume the bus.

Fixes: 37692de5 ("i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller")
Signed-off-by: default avatarRoja Rani Yarubandi <rojay@codeaurora.org>
Reviewed-by: default avatarStephen Boyd <swboyd@chromium.org>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
parent 9f78c607

drivers/i2c/busses/i2c-qcom-geni.c

+11 −1
Original line number Diff line number Diff line
@@ -698,6 +698,8 @@ static int __maybe_unused geni_i2c_suspend_noirq(struct device *dev) 
{

	struct geni_i2c_dev *gi2c = dev_get_drvdata(dev);



	i2c_mark_adapter_suspended(&gi2c->adap);



	if (!gi2c->suspended) {

		geni_i2c_runtime_suspend(dev);

		pm_runtime_disable(dev);
@@ -707,8 +709,16 @@ static int __maybe_unused geni_i2c_suspend_noirq(struct device *dev) 
	return 0;

}



static int __maybe_unused geni_i2c_resume_noirq(struct device *dev)

{

	struct geni_i2c_dev *gi2c = dev_get_drvdata(dev);



	i2c_mark_adapter_resumed(&gi2c->adap);

	return 0;

}



static const struct dev_pm_ops geni_i2c_pm_ops = {

	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(geni_i2c_suspend_noirq, NULL)

	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(geni_i2c_suspend_noirq, geni_i2c_resume_noirq)

	SET_RUNTIME_PM_OPS(geni_i2c_runtime_suspend, geni_i2c_runtime_resume,

									NULL)

};