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authorFabien Dessenne <fabien.dessenne@st.com>2019-10-30 16:57:01 +0300
committerJassi Brar <jaswinder.singh@linaro.org>2019-12-01 08:08:59 +0300
commit69269446ccbf2b44fd2595ecfa57e29fb656788d (patch)
treefe608eb3e2e6960f76440e2346a893c8997f20d8 /drivers/mailbox/stm32-ipcc.c
parent41c9479903c5bd91bb0cb7240a1227d00c42b41f (diff)
downloadlinux-69269446ccbf2b44fd2595ecfa57e29fb656788d.tar.xz
mailbox: stm32-ipcc: Update wakeup management
The wakeup specific IRQ management is no more needed to wake up the stm32 platform. A relationship has been established between the EXTI and the RX IRQ, just need to declare the EXTI interrupt instead of the IPCC RX IRQ. Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Diffstat (limited to 'drivers/mailbox/stm32-ipcc.c')
-rw-r--r--drivers/mailbox/stm32-ipcc.c36
1 files changed, 7 insertions, 29 deletions
diff --git a/drivers/mailbox/stm32-ipcc.c b/drivers/mailbox/stm32-ipcc.c
index 5c2d1e1f988b..ef966887aa15 100644
--- a/drivers/mailbox/stm32-ipcc.c
+++ b/drivers/mailbox/stm32-ipcc.c
@@ -52,7 +52,6 @@ struct stm32_ipcc {
struct clk *clk;
spinlock_t lock; /* protect access to IPCC registers */
int irqs[IPCC_IRQ_NUM];
- int wkp;
u32 proc_id;
u32 n_chans;
u32 xcr;
@@ -282,16 +281,9 @@ static int stm32_ipcc_probe(struct platform_device *pdev)
/* wakeup */
if (of_property_read_bool(np, "wakeup-source")) {
- ipcc->wkp = platform_get_irq_byname(pdev, "wakeup");
- if (ipcc->wkp < 0) {
- if (ipcc->wkp != -EPROBE_DEFER)
- dev_err(dev, "could not get wakeup IRQ\n");
- ret = ipcc->wkp;
- goto err_clk;
- }
-
device_set_wakeup_capable(dev, true);
- ret = dev_pm_set_dedicated_wake_irq(dev, ipcc->wkp);
+
+ ret = dev_pm_set_wake_irq(dev, ipcc->irqs[IPCC_IRQ_RX]);
if (ret) {
dev_err(dev, "Failed to set wake up irq\n");
goto err_init_wkp;
@@ -334,10 +326,10 @@ static int stm32_ipcc_probe(struct platform_device *pdev)
return 0;
err_irq_wkp:
- if (ipcc->wkp)
+ if (of_property_read_bool(np, "wakeup-source"))
dev_pm_clear_wake_irq(dev);
err_init_wkp:
- device_init_wakeup(dev, false);
+ device_set_wakeup_capable(dev, false);
err_clk:
clk_disable_unprepare(ipcc->clk);
return ret;
@@ -345,27 +337,17 @@ err_clk:
static int stm32_ipcc_remove(struct platform_device *pdev)
{
- struct stm32_ipcc *ipcc = platform_get_drvdata(pdev);
+ struct device *dev = &pdev->dev;
- if (ipcc->wkp)
+ if (of_property_read_bool(dev->of_node, "wakeup-source"))
dev_pm_clear_wake_irq(&pdev->dev);
- device_init_wakeup(&pdev->dev, false);
+ device_set_wakeup_capable(dev, false);
return 0;
}
#ifdef CONFIG_PM_SLEEP
-static void stm32_ipcc_set_irq_wake(struct device *dev, bool enable)
-{
- struct stm32_ipcc *ipcc = dev_get_drvdata(dev);
- unsigned int i;
-
- if (device_may_wakeup(dev))
- for (i = 0; i < IPCC_IRQ_NUM; i++)
- irq_set_irq_wake(ipcc->irqs[i], enable);
-}
-
static int stm32_ipcc_suspend(struct device *dev)
{
struct stm32_ipcc *ipcc = dev_get_drvdata(dev);
@@ -373,8 +355,6 @@ static int stm32_ipcc_suspend(struct device *dev)
ipcc->xmr = readl_relaxed(ipcc->reg_proc + IPCC_XMR);
ipcc->xcr = readl_relaxed(ipcc->reg_proc + IPCC_XCR);
- stm32_ipcc_set_irq_wake(dev, true);
-
return 0;
}
@@ -382,8 +362,6 @@ static int stm32_ipcc_resume(struct device *dev)
{
struct stm32_ipcc *ipcc = dev_get_drvdata(dev);
- stm32_ipcc_set_irq_wake(dev, false);
-
writel_relaxed(ipcc->xmr, ipcc->reg_proc + IPCC_XMR);
writel_relaxed(ipcc->xcr, ipcc->reg_proc + IPCC_XCR);