From: Maulik Shah <mkshah@codeaurora.org>
To: bjorn.andersson@linaro.org, maz@kernel.org,
linus.walleij@linaro.org, swboyd@chromium.org,
evgreen@chromium.org, mka@chromium.org
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-gpio@vger.kernel.org, agross@kernel.org,
tglx@linutronix.de, jason@lakedaemon.net, dianders@chromium.org,
rnayak@codeaurora.org, ilina@codeaurora.org,
lsrao@codeaurora.org, Maulik Shah <mkshah@codeaurora.org>
Subject: [PATCH v3 4/5] irqchip: qcom-pdc: Introduce irq_set_wake call
Date: Mon, 22 Jun 2020 15:01:47 +0530 [thread overview]
Message-ID: <1592818308-23001-5-git-send-email-mkshah@codeaurora.org> (raw)
In-Reply-To: <1592818308-23001-1-git-send-email-mkshah@codeaurora.org>
Remove irq_disable callback to allow lazy disable for pdc interrupts.
Add irq_set_wake callback that unmask interrupt in HW when drivers
mark interrupt for wakeup. Interrupt will be cleared in HW during
lazy disable if its not marked for wakeup.
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
---
drivers/irqchip/qcom-pdc.c | 34 ++++++++++++++++------------------
1 file changed, 16 insertions(+), 18 deletions(-)
diff --git a/drivers/irqchip/qcom-pdc.c b/drivers/irqchip/qcom-pdc.c
index 6ae9e1f..8beb6f7 100644
--- a/drivers/irqchip/qcom-pdc.c
+++ b/drivers/irqchip/qcom-pdc.c
@@ -36,6 +36,7 @@ struct pdc_pin_region {
u32 cnt;
};
+static DECLARE_BITMAP(pdc_wake_irqs, PDC_MAX_IRQS);
static DEFINE_RAW_SPINLOCK(pdc_lock);
static void __iomem *pdc_base;
static struct pdc_pin_region *pdc_region;
@@ -87,22 +88,17 @@ static void pdc_enable_intr(struct irq_data *d, bool on)
raw_spin_unlock(&pdc_lock);
}
-static void qcom_pdc_gic_disable(struct irq_data *d)
+static int qcom_pdc_gic_set_wake(struct irq_data *d, unsigned int on)
{
- if (d->hwirq == GPIO_NO_WAKE_IRQ)
- return;
-
- pdc_enable_intr(d, false);
- irq_chip_disable_parent(d);
-}
-
-static void qcom_pdc_gic_enable(struct irq_data *d)
-{
- if (d->hwirq == GPIO_NO_WAKE_IRQ)
- return;
+ if (on) {
+ pdc_enable_intr(d, true);
+ irq_chip_enable_parent(d);
+ set_bit(d->hwirq, pdc_wake_irqs);
+ } else {
+ clear_bit(d->hwirq, pdc_wake_irqs);
+ }
- pdc_enable_intr(d, true);
- irq_chip_enable_parent(d);
+ return irq_chip_set_wake_parent(d, on);
}
static void qcom_pdc_gic_mask(struct irq_data *d)
@@ -111,6 +107,9 @@ static void qcom_pdc_gic_mask(struct irq_data *d)
return;
irq_chip_mask_parent(d);
+
+ if (!test_bit(d->hwirq, pdc_wake_irqs))
+ pdc_enable_intr(d, false);
}
static void qcom_pdc_gic_unmask(struct irq_data *d)
@@ -118,6 +117,7 @@ static void qcom_pdc_gic_unmask(struct irq_data *d)
if (d->hwirq == GPIO_NO_WAKE_IRQ)
return;
+ pdc_enable_intr(d, true);
irq_chip_unmask_parent(d);
}
@@ -197,15 +197,13 @@ static struct irq_chip qcom_pdc_gic_chip = {
.irq_eoi = irq_chip_eoi_parent,
.irq_mask = qcom_pdc_gic_mask,
.irq_unmask = qcom_pdc_gic_unmask,
- .irq_disable = qcom_pdc_gic_disable,
- .irq_enable = qcom_pdc_gic_enable,
.irq_get_irqchip_state = qcom_pdc_gic_get_irqchip_state,
.irq_set_irqchip_state = qcom_pdc_gic_set_irqchip_state,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.irq_set_type = qcom_pdc_gic_set_type,
+ .irq_set_wake = qcom_pdc_gic_set_wake,
.flags = IRQCHIP_MASK_ON_SUSPEND |
- IRQCHIP_SET_TYPE_MASKED |
- IRQCHIP_SKIP_SET_WAKE,
+ IRQCHIP_SET_TYPE_MASKED,
.irq_set_vcpu_affinity = irq_chip_set_vcpu_affinity_parent,
.irq_set_affinity = irq_chip_set_affinity_parent,
};
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
next prev parent reply other threads:[~2020-06-22 9:33 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-22 9:31 [PATCH v3 0/5] irqchip: qcom: pdc: Introduce irq_set_wake call Maulik Shah
2020-06-22 9:31 ` [PATCH v3 1/5] pinctrl: qcom: Remove irq_disable callback from msmgpio irqchip Maulik Shah
2020-07-13 22:17 ` Doug Anderson
[not found] ` <723acb53-364a-9045-8dbd-fa2a270798a6@codeaurora.org>
2020-07-15 0:08 ` Doug Anderson
2020-06-22 9:31 ` [PATCH v3 2/5] pinctrl: qcom: Add msmgpio irqchip flags Maulik Shah
2020-07-13 22:17 ` Doug Anderson
2020-07-14 10:43 ` Maulik Shah
2020-06-22 9:31 ` [PATCH v3 3/5] pinctrl: qcom: Use return value from irq_set_wake call Maulik Shah
2020-07-13 22:17 ` Doug Anderson
2020-07-16 13:18 ` Linus Walleij
2020-07-16 21:51 ` Doug Anderson
2020-06-22 9:31 ` Maulik Shah [this message]
2020-07-13 22:16 ` [PATCH v3 4/5] irqchip: qcom-pdc: Introduce " Doug Anderson
2020-07-14 10:54 ` Maulik Shah
2020-06-22 9:31 ` [PATCH v3 5/5] irqchip: qcom-pdc: Reset all pdc interrupts during init Maulik Shah
2020-07-13 22:17 ` Doug Anderson
2020-07-14 11:01 ` Maulik Shah
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