diff options
| author | Robin Gong <yibin.gong@nxp.com> | 2021-08-06 00:19:06 +0800 |
|---|---|---|
| committer | Philippe Schenker <philippe.schenker@toradex.com> | 2022-05-18 16:41:09 +0200 |
| commit | f04bac0476413576c8f5047c74325ecd7fd05b7a (patch) | |
| tree | bf74b10227090f9818eea0d8b76913379ca2a16b | |
| parent | a96256e797c4c209df591137be67a656ef6b8533 (diff) | |
LF-4265: mailbox: imx: fix wakeup failure from freeze mode
Since IRQF_NO_SUSPEND used for imx mailbox driver, that means this irq
can't be used for wakeup source so that can't wakeup from freeze mode.
Add pm_system_wakeup() to wakeup from freeze mode.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
(cherry picked from commit d12a9c6240167bab5a49180cf642cc9e6e518bca)
(cherry picked from commit 23857411888f489fbff023d05a38a0cdc035af26)
| -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; } |