diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2020-04-24 07:07:10 +0800 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2020-06-17 21:46:09 +0800 |
| commit | 0caf847975b2d1247a220e8f439c9a54e34429f0 (patch) | |
| tree | 86465832c120c5c079b82f0f06fe43fc0e87ba00 /drivers/firmware/imx/imx-scu-irq.c | |
| parent | b3a9e3b9622ae10064826dccb4f7a52bd88c7407 (diff) | |
firmware: imx: make sure MU irq can wake up system from suspend mode
IRQF_NO_SUSPEND flag is set for MU IRQ of IPC work, but with this
flag set, IRQD_WAKEUP_ARMED flag will NOT be set during
suspend_device_irq() phase, then when MU IRQ arrives, it will NOT
wake up system from suspend.
To fix this issue, pm_system_wakeup() is called in general MU IRQ
handler to make sure system can be waked up when MU IRQ arrives.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'drivers/firmware/imx/imx-scu-irq.c')
| -rw-r--r-- | drivers/firmware/imx/imx-scu-irq.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/firmware/imx/imx-scu-irq.c b/drivers/firmware/imx/imx-scu-irq.c index db655e87cdc8..d9dcc20945c6 100644 --- a/drivers/firmware/imx/imx-scu-irq.c +++ b/drivers/firmware/imx/imx-scu-irq.c @@ -10,6 +10,7 @@ #include <linux/firmware/imx/ipc.h> #include <linux/firmware/imx/sci.h> #include <linux/mailbox_client.h> +#include <linux/suspend.h> #define IMX_SC_IRQ_FUNC_ENABLE 1 #define IMX_SC_IRQ_FUNC_STATUS 2 @@ -91,6 +92,7 @@ static void imx_scu_irq_work_handler(struct work_struct *work) if (!irq_status) continue; + pm_system_wakeup(); imx_scu_irq_notifier_call_chain(irq_status, &i); } } |