diff options
-rw-r--r-- | drivers/mailbox/imx-mailbox.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c index df6a5930f79f..182df9ca24dc 100644 --- a/drivers/mailbox/imx-mailbox.c +++ b/drivers/mailbox/imx-mailbox.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/of_device.h> #include <linux/pm_runtime.h> +#include <linux/suspend.h> #include <linux/slab.h> #include <linux/jiffies.h> @@ -67,6 +68,7 @@ struct imx_mu_priv { const struct imx_mu_dcfg *dcfg; struct clk *clk; int irq; + bool suspend; /* for control register save and restore */ u32 xcr; @@ -374,6 +376,9 @@ static irqreturn_t imx_mu_isr(int irq, void *p) return IRQ_NONE; } + if (priv->suspend) + pm_system_wakeup(); + return IRQ_HANDLED; } @@ -634,7 +639,9 @@ static int imx_mu_suspend_noirq(struct device *dev) if (!priv->clk) priv->xcr = imx_mu_read(priv, priv->dcfg->xCR); - return 0; + priv->suspend = true; + + return 0; } static int imx_mu_resume_noirq(struct device *dev) @@ -652,6 +659,8 @@ static int imx_mu_resume_noirq(struct device *dev) if (!imx_mu_read(priv, priv->dcfg->xCR) && !priv->clk) imx_mu_write(priv, priv->xcr, priv->dcfg->xCR); + priv->suspend = false; + return 0; } |