From: Fabien Dessenne <fabien.dessenne@st.com>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Jassi Brar <jassisinghbrar@gmail.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
<linux-kernel@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>
Cc: Fabien Dessenne <fabien.dessenne@st.com>
Subject: [PATCH 2/2] mailbox: stm32-ipcc: Update wakeup management
Date: Wed, 16 Oct 2019 14:13:49 +0200 [thread overview]
Message-ID: <1571228029-31652-3-git-send-email-fabien.dessenne@st.com> (raw)
In-Reply-To: <1571228029-31652-1-git-send-email-fabien.dessenne@st.com>
The wakeup specific IRQ management is no more needed to wake up the stm32
plaform. 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>
---
drivers/mailbox/stm32-ipcc.c | 36 +++++++-----------------------------
1 file changed, 7 insertions(+), 29 deletions(-)
diff --git a/drivers/mailbox/stm32-ipcc.c b/drivers/mailbox/stm32-ipcc.c
index 5c2d1e1..ef96688 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 @@ static int stm32_ipcc_probe(struct platform_device *pdev)
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);
--
2.7.4
prev parent reply other threads:[~2019-10-16 12:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-16 12:13 [PATCH 0/2] mailbox: stm32-ipcc: rework wakeup Fabien Dessenne
2019-10-16 12:13 ` [PATCH 1/2] dt-bindings: mailbox: stm32-ipcc: Updates for wakeup management Fabien Dessenne
2019-10-29 1:26 ` Rob Herring
2019-10-16 12:13 ` Fabien Dessenne [this message]
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