From 1b7141be928f405a18d7e3adf649917d7ac25041 Mon Sep 17 00:00:00 2001 From: Deepak Kumar Singh Date: Mon, 3 Jun 2024 13:06:48 +0530 Subject: [PATCH] FROMLIST: rpmsg: glink: Make glink smem interrupt wakeup capable There are certain usecases which require glink interrupt to be wakeup capable. For example if handset is in sleep state and usb charger is plugged in, dsp wakes up and sends glink interrupt to host for glink pmic channel communication. Glink is suppose to wakeup host processor completely for further glink data handling. IRQF_NO_SUSPEND does not gurantee complete wakeup, system may again enter sleep after interrupt handling and glink data may not be handled by pmic client driver. To ensure data handling by client configure glink smem device as wakeup source and attach glink interrupt as wakeup irq. Remove IRQF_NO_SUSPEND flag as it is no longer required. Link: https://lore.kernel.org/r/20240603073648.3475123-1-quic_deesin@quicinc.com Signed-off-by: Deepak Kumar Singh Signed-off-by: Vishnu Santhosh --- drivers/rpmsg/qcom_glink_smem.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/rpmsg/qcom_glink_smem.c b/drivers/rpmsg/qcom_glink_smem.c index 62adc4db23170..7f4058f62475a 100644 --- a/drivers/rpmsg/qcom_glink_smem.c +++ b/drivers/rpmsg/qcom_glink_smem.c @@ -22,6 +22,7 @@ #include #include #include +#include #include @@ -306,8 +307,7 @@ struct qcom_glink_smem *qcom_glink_smem_register(struct device *parent, smem->irq = of_irq_get(smem->dev.of_node, 0); ret = devm_request_irq(&smem->dev, smem->irq, qcom_glink_smem_intr, - IRQF_NO_SUSPEND | IRQF_NO_AUTOEN, - "glink-smem", smem); + IRQF_NO_AUTOEN, "glink-smem", smem); if (ret) { dev_err(&smem->dev, "failed to request IRQ\n"); goto err_put_dev; @@ -346,6 +346,8 @@ struct qcom_glink_smem *qcom_glink_smem_register(struct device *parent, smem->glink = glink; + device_init_wakeup(dev, true); + dev_pm_set_wake_irq(dev, smem->irq); enable_irq(smem->irq); return smem; @@ -365,6 +367,8 @@ void qcom_glink_smem_unregister(struct qcom_glink_smem *smem) struct qcom_glink *glink = smem->glink; disable_irq(smem->irq); + dev_pm_clear_wake_irq(&smem->dev); + device_init_wakeup(&smem->dev, false); qcom_glink_native_remove(glink);