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Commit 651326e2 authored by Maulik Shah's avatar Maulik Shah Committed by Gerrit - the friendly Code Review server
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mailbox: qcom-rpmh: Add hibernation support 



Add hibernation support for rsc mailbox driver.

Change-Id: I55904c2332016815dcf1e127d2ae8a8510d48e38
Signed-off-by: default avatarMaulik Shah <mkshah@codeaurora.org>
parent 0abb3e81

drivers/mailbox/qcom-rpmh-mailbox.c

+23 −0
Original line number Diff line number Diff line
@@ -421,6 +421,21 @@ static inline void enable_tcs_irq(struct rsc_drv *drv, int m, bool enable) 
	write_tcs_reg(base, RSC_DRV_IRQ_ENABLE, 0, 0, data);

}



static int rsc_suspend(struct device *dev)

{

	return 0;

}



static int rsc_resume(struct device *dev)

{

	struct rsc_drv *drv = (struct rsc_drv *)dev_get_drvdata(dev);



	write_tcs_reg(drv->reg_base, RSC_DRV_IRQ_ENABLE, 0, 0,

					drv->tcs[ACTIVE_TCS].tcs_mask);



	return 0;

}



/**

 * tcs_irq_handler: TX Done / Recv data handler

 */
@@ -1296,12 +1311,19 @@ static int rsc_drv_probe(struct platform_device *pdev) 
	if (ret)

		return ret;



	platform_set_drvdata(pdev, drv);



	pr_debug("Mailbox controller (%s, drv=%d) registered\n",

					dn->full_name, drv->drv_id);



	return 0;

}



static const struct dev_pm_ops rpmh_mailbox_dev_pm_ops = {

	.poweroff_noirq = rsc_suspend,

	.restore_noirq = rsc_resume,

};



static const struct of_device_id rsc_drv_match[] = {

	{ .compatible = "qcom,tcs-drv", },

	{ }
@@ -1311,6 +1333,7 @@ static struct platform_driver rpmh_mbox_driver = { 
	.probe = rsc_drv_probe,

	.driver = {

		.name = KBUILD_MODNAME,

		.pm = &rpmh_mailbox_dev_pm_ops,

		.of_match_table = rsc_drv_match,

		.suppress_bind_attrs = true,

	},